Chapter 18

Screening the Shoulder and Upper Extremity

The therapist is well aware that many primary neuromuscular and musculoskeletal conditions in the neck, cervical spine, axilla, thorax, thoracic spine, and chest wall can refer pain to the shoulder and arm. For this reason, the physical therapist’s examination usually includes assessment above and below the involved joint for referred musculoskeletal pain (Case Example 18-1).

Case Example 18-1

Evaluation of a Professional Golfer

Referral: A 38-year-old male, professional golfer presented to physical therapy with a diagnosis of shoulder impingement syndrome, with partial thickness tears of the supraspinatus tendon.

Prior to the physical therapy intervention, x-rays taken were reported as negative for fracture or tumor. Magnetic resonance imaging (MRI) was reported as positive for bursitis and supraspinatus tendinitis with some partial tears. The shoulder specialist also provided the client with one corticosteroid injection, which gave him some relief of his shoulder pain.

Past Medical History: Past medical history and Review of Systems were negative for any systemic issues. He was on no medication at the time of evaluation.

Clinical Presentation: Functional deficits were reported as pain with the take-away phase of the golf swing and with the adduction motion of the shoulder in follow-through. He also reported a loss of distance associated with his drive by 20 to 30 yards. He had trouble sleeping and reported pain would wake him up if his head were turned into left rotation. He also had pain when turning his head to the left (e.g., when driving a car).

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Special tests

Hawkins/Kennedy +

Neer +

Speed +

ER lag test −

IR lag test −

Cervical ROM  
Flexion 40 degrees  
Extension (ext) 20 degrees Report of left scapular pain
Left side bend 20 degrees Report of left scapular pain
Right side bend 25 degrees No report of pain
Left rotation 45 degrees Report of left scapular pain
Right rotation 70 degrees No report of pain
Quadrant position Right and left: Reproduced left posterior scapular pain with radicular pain to the thumb and second finger area

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He did have intact sensation to light touch and proprioceptive sense. Strength testing on the Cybex weight-lifting machines showed he was able to do 10 triceps extensions on the right with four plates while on the left, he was only able to do one repetition with one plate.

Result: With the data obtained in the examination, the conclusion was made that he did have an impingement syndrome as described by Neer, with involvement of the bursa and rotator cuff tendons.72 Cyriax muscle testing revealed some musculotendon involvement with the strong/painful tests.61

The cervical findings required consultation with the referring physician. A provisional medical diagnosis was made of cervical radiculopathy with a C5-C6 herniated disk. The client was referred to a neurosurgeon for evaluation. An MRI confirmed the diagnosis and the client underwent an anterior cervical fusion with diskectomy.

Summary: This case example helps highlight the importance of a complete examination process, even if a physician specialist refers a client for physical therapy services. The therapist must “clear” or examine the joints above and below the region thought to be the cause of the dysfunction. The major reason for the symptoms or a secondary diagnosis may be missed if the screening step is left out because of a lack of time or assuming someone else checked out the entire client.

Voshell S: Case report presented in fulfillment of DPT 910, Institute for Physical Therapy Education, Widener University, Chester, PA, 2005. Used with permission.

In this chapter, we explore systemic and viscerogenic causes of shoulder and arm pain and take a look at each system that can refer pain or symptoms to the shoulder. This will include vascular, pulmonary, renal, gastrointestinal (GI), and gynecologic causes of shoulder and upper extremity pain and dysfunction. Primary or metastatic cancer as an underlying cause of shoulder pain also is included. The therapist must know how and what to look for to screen for cancer.

Systemic diseases and medical conditions affecting the neck, breast, and any organs in the chest or abdomen can present clinically as shoulder pain (Table 18-1).1 Peptic ulcers, heart disease, ectopic pregnancy, and myocardial ischemia are only a few examples of systemic diseases that can cause shoulder pain and movement dysfunction. Each disorder listed can present clinically as a shoulder problem before ever demonstrating systemic signs and symptoms.

TABLE 18-1

Systemic and Medical Conditions as Causes of Shoulder and Upper Extremity Symptoms

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TOS, Thoracic outlet syndrome; MI, myocardial infarction; ICU/s/p CABG, intensive care unit status post coronary artery bypass graft.

Using the Screening Model to Evaluate Shoulder and Upper Extremity

Past Medical History

As you look over the various potential systemic causes of shoulder symptomatology listed in Table 18-1, think about the most common risk factors and red flag histories you might see with each of these conditions. For example, a history of any kind of cancer is always a red flag. Breast and lung cancer are the two most common types of cancer to metastasize to the shoulder.

Heart disease can cause shoulder pain, but it usually occurs in an age specific population.2,3 Anyone over 50 years old, postmenopausal women, and anyone with a positive first generation family history is at increased risk for symptomatic heart disease. Younger individuals may be more likely to demonstrate atypical symptoms such as shoulder pain without chest pain.4

Alternately, although atherosclerosis has been demonstrated in the blood vessels of children, teens, and young adults, they are rarely symptomatic unless some other heart anomaly is present.5,6

Hypertension, diabetes, and hyperlipidemia are other red flag histories associated with cardiac-related shoulder pain. Of course, a history of angina,7 heart attack, angiography, stent or pacemaker placement, coronary artery bypass graft (CABG), or other cardiac procedure is also a yellow (caution) flag to alert the therapist of the potential need for further screening.

Knowledge of risk factors associated with pathologic conditions, illnesses, and diseases helps the therapist navigate the screening process. For example, pulmonary tuberculosis (TB) is a possible cause of shoulder pain.8-10 Who is most likely to develop TB? Risk factors include:

• Health care workers

• Homeless population

• Prison inmates

• Immunocompromised individuals (e.g., transplant recipients, long-term users of immunosuppressants, anyone treated for long-term rheumatoid arthritis [RA], anyone treated with chemotherapy for cancer)

• Older adult (over 65 years)

• Immigrants from areas where TB is endemic

• Injection drug users

• Malnourished (e.g., eating disorders, alcoholism, drug users, cachexia)

In a case like tuberculosis, there will usually be other associated signs and symptoms such as fever, sweats, and cough. When completing a screening examination for a client with shoulder pain of unknown origin or an unusual clinical presentation, the therapist might look at vital signs, auscultate the client, and see what effect increased respiratory movements have on shoulder symptoms (Case Example 18-2).

Case Example 18-2   Homeless Man with Tuberculosis

Referral: A 36-year-old man was referred to physical therapy as an inpatient for a short-term hospitalization. He was a homeless man brought to the hospital by the police and admitted with an extensive medical problem list including:

• Malnutrition

• Alcoholism

• Depression

• Hepatitis A

• Broken wrist

• Shoulder pain

• Dehydration

There was no past medical history of cancer. The client was a smoker when he could get cigarettes. He would like to support a one-pack/day habit.

Medical service requested an evaluation of the client’s shoulder pain. X-rays were not taken because the man had full active ROM, no history of trauma, and no insurance to cover additional testing.

Clinical Presentation: The therapist was unable to reproduce the shoulder pain with palpation, position, or provocation testing. There was no sign of rotator cuff dysfunction, adhesive capsulitis, tendinitis, or trigger points in the upper quadrant. There was a noticeable stiffening of the neck with very limited cervical ROM in all planes and directions.

Vital signs were unremarkable, but the client was perspiring heavily despite being in threadbare clothing and at rest. He reported getting the “sweats” every day around this same time.

The therapist asked the client to take a deep breath and cough. He went into a paroxysm of coughing, which he said caused his shoulder to start aching. The cough was productive, but the client swallowed the sputum. Auscultation of lung sounds revealed rales (crackles) in the right upper lung lobe. Supraclavicular lymph nodes were palpable, tender, and moveable on both sides.

The therapist contacted the charge nurse and reported the following concerns:

• Constitutional symptoms of sweats and fatigue (although fatigue could be caused by his extreme malnutrition)

• Pulmonary impairment with reproduction of symptoms with respiratory movements

• Suspicious (aberrant) lymph nodes (bilateral)

• Cervical spine involvement with no apparent cause or recognizable musculoskeletal pattern

Result: Consult with the physician on-call resulted in a medical evaluation and x-ray. Client was diagnosed with pulmonary tuberculosis, which was confirmed by a skin test. Shoulder and neck pain and dysfunction were attributed to a pulmonary source and not considered appropriate for physical therapy intervention.

The client was sent to a halfway house where he could receive adequate nutrition and medical services to treat his tuberculosis.

Clinical Presentation

Differential diagnosis of shoulder pain is sometimes especially difficult because any pain that is felt in the shoulder often affects the joint as though the pain were originating in the joint.3 Shoulder pain with any of the components listed in this chapter should be approached as a manifestation of systemic visceral illness, even if shoulder movements exacerbate the pain or if there are objective findings at the shoulder.

Many visceral diseases present as unilateral shoulder pain (Table 18-2). Esophageal, pericardial (or other myocardial diseases), aortic dissection, and diaphragmatic irritation from thoracic or abdominal diseases (e.g., upper GI, renal, hepatic/biliary) all can appear as unilateral pain.

TABLE 18-2

Location of Shoulder Pain

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Adhesive capsulitis, a condition in which both active and passive glenohumeral motions are restricted, can be associated with diabetes mellitus, hyperthyroidism,11,12 ischemic heart disease, infection, and lung diseases (tuberculosis, emphysema, chronic bronchitis, Pancoast’s tumors) (Case Example 18-3).9,10,13-15

Case Example 18-3   Cardiac Cause of Shoulder Pain

A 65-year-old retired railroad engineer has come to you with a left “frozen shoulder.” During the course of the subjective examination, he tells you he is taking two cardiac medications.

What questions would you ask that might help you relate these two problems or rule out a cardiac condition as a possible cause? (shoulder/cardiac)

Try to organize your thoughts using these categories:

• Onset/history of shoulder involvement

• Medical testing

• Clinical presentation

• Past medical history

Physical Therapy Screening Interview

Onset/History

• What do you think is the cause of your shoulder problem?

• When did it occur, or how long have you had this problem (sudden or gradual onset)?

• Can you recall any specific incident when you injured your shoulder, for example, by falling, being hit by someone or something, automobile accident?

• Did you ever have a snapping or popping sensation just before your shoulder started to hurt? (Ligamentous or cartilaginous lesion)

• Did you injure your neck in any way before your shoulder developed these problems?

• Have you had a recent heart attack? Have you had nausea, fatigue, sweating, chest pain, or pressure? Any pain in your neck, jaw, left shoulder, or down your left arm?

• Has your left hand ever been stiff or swollen? (CRPS after myocardial infarction [MI])

• Do you think your shoulder pain is related to your heart problems?

• Shortly before you first noticed difficulty with your shoulder were you involved in any kind of activities that would require repetitive movements, such as painting, gardening, playing tennis or golf?

Medical Testing

• Have you had any recent x-rays taken of the shoulder or your neck?

• Have you received medical or physical therapy treatment for shoulder problems before?

• If yes, where, when, why, who, and what (see Chapter 2 for specific questions)?

• Have you had any (extensive) medical testing during the past year?

Clinical Presentation

Pain/Symptoms

Follow the usual line of questioning regarding the pattern, frequency, intensity, and duration outlined in Fig. 3-6 to establish necessary information regarding pain.

• Is your shoulder painful?

• If yes, how long has the shoulder been painful?

Aggravating/Relieving Activities

• How does rest affect your shoulder symptoms? (True muscular lesions are relieved with prolonged rest [i.e., more than 1 hour], whereas angina is usually relieved more immediately by cessation of activity or rest [i.e., usually within 2 to 5 minutes, up to 15 minutes].)

• Does your shoulder pain occur during exercise (e.g., walking, climbing stairs, mowing the lawn or any other physical or sexual activity? (Evaluate the difference between total body exertion causing shoulder symptoms versus movements of the upper extremities only reproducing symptoms. Total body exertion causing shoulder pain may be secondary to angina or MI, whereas movements of just the upper extremities causing shoulder pain are indicative of a primary musculoskeletal lesion.)

Past Medical History

• Have you had any surgery during the past year?

• How has your general health been? (Shoulder pain is a frequent site of referred pain from other internal medical problems; see Fig. 18-2.)

• Did you have rheumatic fever when you were a child?

• What is your typical pattern of chest pain or angina?

• Has this pattern changed in any way since your shoulder started to hurt? For example, does the chest pain last longer, come on with less exertion, and feel more intense?

• What medications are you taking?

• Do your heart medications relieve your shoulder symptoms, even briefly?

• If yes, how long after you take the medications do you notice a difference?

• Does this occur every time that you take your medications?

Evaluating subacute/acute/chronic musculoskeletal lesion versus systemic pain pattern (see Chapter 3 for specific meaning to the client’s answers to these questions):

• Can you lie on that side?

• Does the shoulder pain awaken you at night?

• If yes, is this because you have rolled onto that side?

• Do you notice any chest pain, night sweats, fever, or heart palpitations when you wake up at night?

• Have you ever noticed these symptoms (e.g., chest pain, heart palpitations) with your shoulder pain during the day?

• Do these symptoms wake you up separately from your shoulder pain, or does your shoulder pain wake you up and you have these additional symptoms? (As always, when asking questions about sleep patterns, the person may be unsure of the answers to the questions. In such cases the physical therapist is advised to ask the client to pay attention to what happens related to sleep during the next few days up to 1 week and report back with more information.)

Other Clinical Tests: In addition to an orthopedic screening examination, the therapist should review potential side effects and interactions of cardiac medications, take vital signs, auscultate (including femoral bruits), and palpate for the aortic pulse (see Fig. 4-55).

Shoulder pain (unilateral or bilateral) progressing to adhesive capsulitis can occur 6 to 9 months after CABG. Similarly, anyone immobile in the intensive care unit (ICU) or coronary care unit (CCU) can experience loss of shoulder motion resulting in adhesive capsulitis (Case Example 18-4). Clients with pacemakers who have complications and revisions that result in prolonged shoulder immobilization can also develop complex regional pain syndrome (CRPS) and/or adhesive capsulitis.16

Case Example 18-4   Pleural Effusion with Fibrosis, Late Complication of Coronary Artery Bypass Graft

Referral: A 53-year-old man was referred to physical therapy by his primary care physician for left shoulder pain.

Past Medical History: The client had a recent (6 months ago) history of cardiac bypass surgery (also known as coronary artery bypass graft [CABG]) and had completed phase 1 and phase 2 cardiac rehab programs. He was continuing to follow an exercise program (phase 3 cardiac rehab) prescribed for him at the time of his physical therapy referral.

Clinical Presentation: The client looked in good health and demonstrated good posture and alignment. Shoulder range of motion (ROM) was equal and symmetric bilaterally, but the client reported pain when the left arm was raised over 90 degrees of flexion or abduction. His position of preference was left sidelying. The pain could be reduced in this position from a rated level of 6 to a 2 on a scale from 0 (no pain) to 10 (worst pain).

Scapulohumeral motion on the left was altered compared to the right. Medial and lateral rotations were within normal limits (WNL) with the upper arm against the chest. Lateral rotation reproduced painful symptoms when performed with the shoulder in 90 degrees of abduction. Physiologic motions were fully present in all directions on the left but seemed “sluggish” compared to the right.

Neurologic screen was negative.

Vital signs:  
Blood pressure: 122/68 mm Hg
Resting pulse: 60 bpm
Body temperature: 98.6° F

Cardiopulmonary screening exam:

Diminished basilar (lower lobes) breath sounds on the left compared to the right

Decreased chest wall excursion on the left; increased shoulder pain with deep inspiration

Dyspnea was not observed at rest

When asked if there were any symptoms of any kind anywhere else in the body, the client reported ongoing but intermittent chest pain and shortness of breath for the last 3 months. The client had not reported these “new” symptoms to the physician.

What are the red flags (if any)? Is an immediate medical referral indicated?

Red Flags

• Age over 40

• Previous (recent) history of cardiac surgery

• Unequal basilar breath sounds

• Unreported symptoms of chest pain and dyspnea

• Autosplinting (lying on the affected side diminishes lung movement, reducing shoulder pain)

Medical Consultation: Shoulder problems are not uncommon following CABG, but the number and type of red flags present caught the therapist’s attention. The client was not in any apparent physiologic distress and vital signs were WNL (although he was on antihypertensive medications). Since he was referred by his primary care physician, the therapist made telephone contact with the physician’s office and faxed a summary of findings immediately.

A program of physical therapy intervention was determined, but the therapist insisted on speaking with the physician first before proceeding with the program. The physician approved the therapist’s treatment plan but requested immediate follow-up with the client who was seen the next day.

Result: The client was diagnosed with pleural effusion causing pleural fibrosis, a rare long-term complication of cardiac bypass surgery. The physician noted that the left lower lobe was adhered to the chest wall.

Pleural effusion is a common complication of cardiac surgery and is associated with other postoperative complications. It occurs more often in women and individuals with associated cardiac or vascular comorbidities and medications used to treat those conditions.73-76

The client was treated medically but also continued in physical therapy to restore full and normal motion of the shoulder complex. The physician also asked the therapist to review the client’s cardiac rehab program and modify it accordingly due to the pulmonary complications.

The Shoulder Is Unique

It has been stressed throughout this text that the basic clues and approach to screening are similar, if not the same, from system to system and anatomic part to anatomic part.

So, for example, much of what was said about screening the neck and back (Chapter 14) applied to the sacrum, sacroiliac (SI), and pelvis (Chapter 15); buttock, hip, and groin (Chapter 16); and chest, breast, and rib (Chapter 17). Presenting the shoulder last in this text is by design. These principles do apply to the shoulder but beyond that:

Shoulder pain is difficult to diagnose because any pain felt in the shoulder will affect the joint as though the pain was originating in the joint.

John Mennell17

… even when there is a known cause, especially in the older adult.

Catherine Goodman

It is not uncommon for the older adult to attribute “overdoing” it to the appearance of physical pain or neuromusculoskeletal (NMS) dysfunction. Any adult over age 65 presenting with shoulder pain and/or dysfunction must be screened for systemic or viscerogenic origin of symptoms, even when there is a known (or attributed) cause or injury.

In Chapter 2, it was stressed that clients who present with no known cause or insidious onset must be screened along with anyone who has a known or assumed cause of symptoms. Whether the client presents with an unknown etiology of injury or impairment or with an assigned cause, always ask yourself these questions:

image Follow-Up Questions

• Is it really insidious?

• Is it really caused by such and such (whatever the client told you)?

The client may wrongly attribute onset of symptoms to an activity. The alert therapist may recognize a true causative factor.

Shoulder Pain Patterns

In Chapter 3, we presented three possible mechanisms for referred pain patterns from the viscera to the soma (embryologic development, multisegmental innervations, and direct pressure on the diaphragm). Multisegmental innervations (see Fig. 3-3) and direct pressure on the diaphragm (see Figs. 3-4 and 3-5) are two key mechanisms for referred shoulder pain.

Multisegmental Innervations: Because the shoulder is innervated by the same spinal nerves that innervate the diaphragm (C3 to C5), any messages to the spinal cord from the diaphragm can result in referred shoulder pain. The nervous system can only tell what nerves delivered the message. It does not have any way to tell if the message sent along via spinal nerves C3 to C5 came from the shoulder or the diaphragm. So it takes a guess and sends a message back to one or the other.

This means that any organ in contact with the diaphragm that gets obstructed, inflamed, or infected can refer pain to the shoulder by putting pressure on the diaphragm, stimulating afferent nerve signals, and telling the nervous system that there is a problem.

Diaphragmatic Irritation: Irritation of the peritoneal (outside) or pleural (inside) surface of the central diaphragm refers sharp pain to the ipsilateral upper trapezius, neck and/or supraclavicular fossa (Fig. 18-1). Shoulder pain from diaphragmatic irritation usually does not cause anterior shoulder pain. Pain is confined to the suprascapular, upper trapezius, and posterior portions of the shoulder.

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Fig. 18-1 Irritation of the peritoneal (outside) or pleural (inside) surface of the central area of the diaphragm can refer sharp pain to the upper trapezius muscle, neck, and supraclavicular fossa. The pain pattern is ipsilateral to the area of irritation. Irritation to the peripheral portion of the diaphragm can refer sharp pain to the ipsilateral costal margins and lumbar region (not shown).

If the irritation crosses the midline of the diaphragm, then it is possible to have bilateral shoulder pain. This does not happen very often and is most common with cardiac ischemia or pulmonary pathology affecting the lower lobes of the lungs on both sides. Irritation of the peripheral portion of the diaphragm is more likely to refer pain to the costal margins and lumbar region on the same side.

As you review Fig. 3-4, note how the heart, spleen, kidneys, pancreas (both the body and the tail), and the lungs can put pressure on the diaphragm. This illustration is key to remembering which shoulder can be involved based on organ pathology. For example, the spleen is on the left side of the body so pain from spleen rupture or injury is referred to the left shoulder (called Kehr’s sign) (Case Example 18-5).18

Case Example 18-5   Rugby Injury

Kehr’s Sign

Referral: A 27-year-old male accountant who has an office in the same complex with a physical therapy practice stopped by early Monday morning complaining of left shoulder pain.

When asked about repetitive motions or recent trauma or injuries, he reported playing in a rugby tournament over the weekend. “I got banged up quite a few times, but I had so much beer in me, I didn’t feel a thing.”

Clinical Presentation: Pain was described as a deep, sharp aching over the upper trapezius and shoulder area on the left side. There were no visual bruises or signs of bleeding in the upper left quadrant.

Vital signs:  
Pulse: 89 bpm
Respirations: 12 per minute
Blood pressure: 90/48 mm Hg (recorded sitting, left arm)
Temperature: 97° F (reported as the client’s “normal” morning temperature)
Pain: Rated as a 5 on a scale from 0 to 10

Range of motion was full in all planes and movements. No particular movement increased or decreased the pain. Gross manual muscle test of the upper extremities was normal (5/5 for flexion, abduction, extension, rotations).

Neurologic screen was negative. All special shoulder tests (e.g., impingement, anterior and posterior instability, quadrant position) were unremarkable.

What are the red flags here? What are your next questions, steps, or screening tests?

Red Flags

• Hypotension

• Left shoulder pain within 24 hours of possible trauma or injury

• Unable to alter, provoke, or palpate painful symptoms

• Clinical presentation is not consistent with expected picture for a shoulder problem; lack of objective findings.

What are your next questions, steps, or screening tests?

Repeat blood pressure measurements, bilaterally. Perform percussive tests for the spleen (see Fig. 4-53).

Depending on the results of these clinical tests, referral might be needed immediately. In this case, the percussive test for enlarged spleen was inconclusive, but there was an observable and palpable “fullness” in the left flank compared to the right.

Result: This client was told:

“Mr. Smith, your exam does not look like what I would expect from a typical shoulder injury. Since I cannot find any way to make your pain better or worse and I cannot palpate or feel any areas of tenderness, there may be some other cause for your symptoms.

Given your history of playing rugby over the weekend, it is possible you have some internal injuries. I am not comfortable treating you until a medical doctor examines you first. Bleeding from the spleen can cause left shoulder pain. When I tapped over the area of your spleen, it did not sound quite like I expected it to, and it seems like there is some fullness along your left side that I am not seeing or feeling on the right.

I do not want to alarm you, but it may be best to go over to the emergency department of the hospital and see what they have to say. You can also call your regular doctor and see if you can get in right away. You can do that right from our clinic phone.”

Final Result: This accountant had clients already scheduled starting in 10 minutes. He did not feel he had the time to go check this out until his lunch hour. About 45 minutes later an ambulance was called to the building. Mr. Smith had collapsed, and his coworkers called 9-1-1.

He was rushed to the hospital and diagnosed with a torn and bleeding spleen, which the doctor called a “slow leak.” It eventually ruptured, leaving him unconscious from blood loss.

Either shoulder can be involved with renal colic or distention of the renal cap from any kidney disorder, but it is usually an ipsilateral referred pain pattern depending on which kidney is impaired (see Fig. 10-7; again, via pressure on the diaphragm). Bilateral shoulder pain from renal disease would only occur if and when both kidneys are compromised at the same time.

Look for history of a recent surgery as part of the past medical history and the presence of accompanying urologic symptoms.

The body of the pancreas lies along the midline of the diaphragm. When the body of the pancreas is enlarged, inflamed, obstructed, or otherwise impinging on the diaphragm, back pain is a possible referred pain pattern. Pain felt in the left shoulder may result from activation of pain fibers in the left diaphragm by an adjacent inflammatory process in the tail of the pancreas.

Postlaparoscopic shoulder pain (PLSP) frequently occurs after various laparoscopic surgical procedures. During the procedure air is introduced into the peritoneum to expand the area and move the abdominal contents out of the way. The mechanism of PLSP is commonly assumed to be overstretching of the diaphragmatic muscle fibers due to the pressure of a pneumoperitoneum (residual carbon dioxide [CO2] gas after surgery).19 Pressure from distention causes phrenic nerve–mediated referred pain to the shoulder.20

Keep in mind that shoulder pain also can occur from diaphragmatic dysfunction. For anyone with shoulder pain of an unknown origin or which does not improve with intervention, palpate the diaphragm and assess its excursion and timing during respiration. Reproduction of shoulder symptoms with direct palpation of the diaphragm and the presence of altered diaphragmatic movement with breathing offer clues to the possibility of diaphragmatic (muscular) involvement.

Fig. 18-2 reminds us that shoulder pain can be referred from the neck, back, chest, abdomen, and elbow. During orthopedic assessment, the therapist always checks “above and below” the impaired level for a possible source of referred pain. With this guideline in mind, we know to look for potential musculoskeletal or neuromuscular causes from the cervical and thoracic spine21 and elbow.

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Fig. 18-2 Musculoskeletal and systemic structures referring pain to the shoulder.

Associated Signs and Symptoms

One of the most basic clues in screening for a viscerogenic or systemic cause of shoulder pain is to look for shoulder pain accompanied by any of the following features:

• Pleuritic component

• Exacerbation by recumbency

• Recent history of laparoscopic procedure (risk factor)18,22,23

• Coincident diaphoresis (cardiac)

• Associated GI signs and symptoms

• Exacerbation by exertion unrelated to shoulder movement (cardiac)

• Associated urologic signs and symptoms

Shoulder pain with any of these present should be approached as a manifestation of systemic visceral illness. This is true even if the pain is exacerbated by shoulder movement or if there are objective findings at the shoulder.24

Using the past medical history and assessing for the presence of associated signs and symptoms will alert the therapist to any red flags suggesting a systemic origin of shoulder symptoms. For example, a ruptured ectopic pregnancy with abdominal hemorrhage can produce left shoulder pain (with or without chest pain) in a woman of childbearing age.25-27 The woman is sexually active, and there is usually a history of missed menses or recent unexplained/unexpected bleeding.

The client may not recognize the connection between painful urination and shoulder pain or the link between gallbladder removal by laparoscopy and subsequent shoulder pain. It is the therapist’s responsibility to assess musculoskeletal symptoms, making a diagnosis that includes ruling out the possibility of systemic disease.

Review of Systems

Associated signs and symptoms feature heavily in the Review of Systems as we step back and look to see if a cluster of any particular organ-dependent signs and symptoms is present. Based on the results of this review, we formulate our final screening questions, tests, and measures. Always remember to end each client interview with the following (or similar) question:

image Follow-Up Questions

• Do you have any symptoms of any kind anywhere else in your body that we haven’t talked about yet?

Screening for Pulmonary Causes of Shoulder Pain

Extensive disease may occur in the periphery of the lung without pain until the process extends to the parietal pleura. Pleural irritation then results in sharp, localized pain that is aggravated by any respiratory movement.

Clients usually note that the pain is alleviated by lying on the affected side, which diminishes the movement of that side of the chest (called “autosplinting”) whereas shoulder pain of musculoskeletal origin is usually aggravated by lying on the symptomatic shoulder.

Shoulder symptoms made worse by recumbence are a yellow flag for pulmonary involvement. Lying down increases the venous return from the lower extremities. A compromised cardiopulmonary system may not be able to accommodate the increase in fluid volume. Referred shoulder pain from the taxed and overworked pulmonary system may result.

At the same time, recumbency or the supine position causes a slight shift of the abdominal contents in the cephalic direction. This shift may put pressure on the diaphragm, which in turn presses up against the lower lung lobes. The combination of increased venous return and diaphragmatic pressure may be enough to reproduce the musculoskeletal symptoms.

Pneumonia in the older adult may appear as shoulder pain when the affected lung presses on the diaphragm; usually there are accompanying pulmonary symptoms, but in older adults, confusion (or increased confusion) may be the only other associated sign.

The therapist should look for the presence of a pleuritic component such as a persistent or productive cough and/or chest pain. Look for tachypnea, dyspnea, wheezing, hyperventilation, or other noticeable changes. Chest auscultation is a valuable tool when screening for pulmonary involvement.

Screening for Cardiovascular Causes of Shoulder Pain

Pain of cardiac and diaphragmatic origin is often experienced in the shoulder because the heart and diaphragm are supplied by the C5 to C6 spinal segment, and the visceral pain is referred to the corresponding somatic area (see Fig. 3-3).

Exacerbation of the shoulder symptoms from a cardiac cause occurs when the client increases activity that does not necessarily involve the arm or shoulder. For example, walking up stairs or riding a stationary bicycle can bring on cardiac-induced shoulder pain.

In cases like this, the therapist should ask about the presence of nausea, unexplained sweating, jaw pain or toothache, back pain, or chest discomfort or pressure. For the client with known heart disease, ask about the effect of taking nitroglycerin (men) or antacids/acid-relieving drugs (women) on their shoulder symptoms.

Vital sign and physical assessment including chest auscultation are important screening tools. See Chapter 4 for details.

Angina or Myocardial Infarction

Angina and/or myocardial infarction (MI) can appear as arm and shoulder pain that can be misdiagnosed as arthritis or other musculoskeletal pathologic conditions (see complete discussion in Chapter 6 and see Figs. 6-8 and 6-9).

Look for shoulder pain that starts 3 to 5 minutes after the start of activity, including shoulder pain with isolated lower extremity motion (e.g., shoulder pain starts after the client climbs a flight of stairs or rides a stationary bicycle). If the client has known angina and takes nitroglycerin, ask about the influence of the nitroglycerin on shoulder pain.

Shoulder pain associated with MI is unaffected by position, breathing, or movement. Because of the well-known association between shoulder pain and angina, cardiac-related shoulder pain may be medically diagnosed without ruling out other causes, such as adhesive capsulitis or supraspinatus tendinitis, when, in fact, the client may have both a cardiac and a musculoskeletal problem (Case Example 18-6).

Case Example 18-6   Strange Case of the Flu

Referral: A 53-year-old butcher at the local grocery store stopped by the physical therapy clinic located in the same shopping complex with a complaint of unusual shoulder pain. He had been seen at this same clinic several years ago for shoulder bursitis and tendinitis from repetitive overuse (cutting and wrapping meat).

Clinical Presentation: His clinical presentation for this new episode of care was exactly as it had been during the last episode of shoulder impairment. The therapist reinstituted a program of soft tissue mobilization and stretching, joint mobilization, and postural alignment. Modalities were used during the first two sessions to help gain pain control.

At the third appointment, the client mentioned feeling “dizzy and sweaty” all day. His shoulder pain was described as a constant, deep ache that had increased in intensity from a 6 to a 10 on a scale from 0 to 10. He attributed these symptoms to having the flu.

It was not until this point that the therapist conducted a screening exam and found the following red flags:

• Age

• Recent history (past 3 weeks) of middle ear infection on the same side as the involved shoulder

• Constant, intense pain (escalating over time)

• Constitutional symptoms (dizziness, perspiration)

• Symptoms unrelieved by physical therapy treatment

Result: The therapist suggested the client get a medical checkup before continuing with physical therapy. Even though the clinical presentation supported shoulder impairment, there were enough red flags and soft signs of systemic distress to warrant further evaluation.

Taking vital signs would have been a good idea.

It turns out the client was having myocardial ischemia masquerading as shoulder pain, the flu, and an ear infection. He had an angioplasty with complete resolution of all his symptoms and even reported feeling energetic for the first time in years.

This is a good example of how shoulder pain and dysfunction can exactly mimic a true musculoskeletal problem—even to the extent of reproducing symptoms from a previous condition.

This case highlights the fact that we must be careful to fully assess our clients with each episode of care.

Using a review of symptoms approach and a specific musculoskeletal shoulder examination, the physical therapist can screen to differentiate between a medical pathologic condition and mechanical dysfunction28 (Case Example 18-7).

Case Example 18-7

Angina Versus Shoulder Pathology

Referral: A 54-year-old man was referred to physical therapy for pre-prosthetic training after a left transtibial (TT) amputation.

Past Medical History

A right transtibial amputation was done 4 years ago

Coronary artery disease (CAD) with coronary artery bypass graft (CABG), myocardial infarction (heart attack), and angina

Peripheral vascular disease (PVD)

Long-standing diabetes mellitus (insulin dependent ×47 years)

Gastroesophageal reflux disease (GERD)

Clinical Presentation: At the time of the initial evaluation for the left TT amputation, the client reported substernal chest pain and left upper extremity pain with activity. Typical anginal pain pattern was described as substernal chest pain. The pain occurs with exertion and is relieved by rest.

Arm pain has never been a part of his usual anginal pain pattern. He reports his arm pain began 10 months ago with intermittent pain starting in the left shoulder and radiating down the anterior-medial aspect of the arm, halfway between the shoulder and the elbow.

The pain is made worse by raising his left arm overhead, pushing his own wheelchair, and using a walker. He was not sure if the shoulder pain was caused by repetitive motions needed for mobility or by his angina. The shoulder pain is relieved by avoiding painful motions. He has not received any treatment for the shoulder problem.

Neurologic screen was negative.

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Palpation of the biceps and supraspinatus tendons increased the client’s shoulder pain.

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There is a capsular pattern in the left glenohumeral joint with limitations in rotation and adduction. Significant capsular tightness is demonstrated with passive or physiologic motions (joint play) of the humerus on the glenoid.

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Review of Systems: Dyspnea, fatigue, sweats with pain; when grouped together, these three symptoms fall under the Cardiovascular category; these do not occur at the same time as the shoulder pain.

• How can you differentiate between medical pathology and mechanical dysfunction as the cause of this client’s shoulder pain?

• Is a medical referral advised?

1. Complete special tests for shoulder impingement, tendonitis, and capsulitis as demonstrated.

2. Assess for trigger points; eliminate trigger points and reassess symptoms.

3. Carry out a Review of Systems to identify clusters of systemic signs and symptoms. In this case, a small cluster of cardiovascular symptoms were identified.

4. Correlate symptoms from Review of Systems with shoulder pain (i.e., Do the associated signs and symptoms reported occur along with the shoulder pain or do these two sets of symptoms occur separately from each other?).

5. Assess the effect of using just the lower extremities on shoulder pain; this was difficult to assess given this client’s status as a bilateral amputee without a prosthetic device on the left side.

Result: Test results point to an untreated biceps and supraspinatus tendinitis. This tendinitis combined with adhesive capsulitis most likely accounted for the left shoulder pain. This assessment was based on the decreased left glenohumeral AROM and decreased joint mobility.

With objective clinical findings to support a musculoskeletal dysfunction, medical referral was not required. There were no indications that the shoulder pain was a signal of a change in the client’s anginal pattern.

Left shoulder impairments were limiting factors in his mobility and rehabilitation process. Shoulder intervention to alleviate pain and to improve upper extremity strength were included in the plan of care. The desired outcome was to improve transfer and gait activities.

Left shoulder pain resolved within the first week of physical therapy intervention. This gain made it possible to improve ambulation from 3 feet to 50 feet with a walker while wearing a right lower extremity prosthesis.

The client gained independence with bed mobility and supine-to-sit transfers. The client continued to make improvements in ambulation, range of motion, and functional mobility.

Physical therapy intervention for the shoulder impairments had a significant impact on the outcomes of this client’s rehab program. By differentiating and treating the shoulder movement dysfunction, the intervention enabled the client to progress faster in the transfer and gait training program than he would have had his left shoulder pain been attributed to angina.28

Data from Smith ML: Differentiating angina and shoulder pathology pain, Phys Ther Case Rep 1(4):210–212, 1998.

Complex Regional Pain Syndrome

Complex regional pain syndrome (CRPS; types I and II) characterized by chronic extremity pain following trauma is sometimes still referred to by the outdated term shoulder-hand syndrome (see Case Example 1-5). CRPS-I was formerly known as reflex sympathetic dystrophy (RSD). CRPS-II was referred to as causalgia.

CRPS was first recognized in the 1800s as causalgia or burning pain in wounded soldiers. Similar presentations after lesser injuries were labeled as RSD.29 Shoulder-hand syndrome was a condition that occurred after an MI (heart attack), usually after prolonged bedrest. This condition (as it was known then) has been significantly reduced in incidence by more up-to-date and aggressive cardiac rehabilitation programs.

Today CRPS-I, primarily affecting the limbs, develops after bone fracture or other injury (even slight or minor trauma, venipuncture, or an insect bite) or surgery to the upper extremity (including shoulder arthroplasty) or lower extremity. Type I is not associated with a nerve lesion, whereas Type II develops after trauma with a nerve lesion.30,31

CRPS-I is still associated with cerebrovascular accident (CVA), heart attack, or diseases of the thoracic or abdominal viscera that can refer pain to the shoulder and arm, which is why it is included here instead of in a section on neurologic conditions. CRPS secondary to deep venous thrombosis (DVT) has also been reported. Individuals developing limb pain and edema after DVT will need further diagnostic investigation to differentiate the cause of symptoms.32

Shoulder, arm, or hand pain and ischemia (usually acute) associated with CRPS that develop without a history of trauma may be attributed to cardiac embolism.33 Structural cardiac causes of upper limb ischemia include a wide variety of conditions (e.g., atrial fibrillation, cardiomyopathy, prosthetic valve, endocarditis, atrial septal defects, aortic dissection).34

This syndrome occurs with equal frequency in either or both shoulders and except when caused by coronary occlusion, is most common in women. The shoulder is generally involved first, but the painful hand may precede the painful shoulder.

When this condition occurs after MI, the shoulder initially may demonstrate pericapsulitis. Tenderness around the shoulder is diffuse and not localized to a specific tendon or bursal area. The duration of the initial shoulder stage before the hand component begins is extremely variable. The shoulder may be “stiff” for several months before the hand becomes involved or both may become stiff simultaneously. Other accompanying signs and symptoms are usually present such as edema, skin (trophic) changes, and vasomotor (temperature, hidrosis) changes.

Clinical Signs and Symptoms

Complex Regional Pain Syndrome (Type I)

Stage I (acute, lasting several weeks)

• Pain described as burning, aching, throbbing

• Sensitivity to touch

• Swelling

• Muscle spasm

• Stiffness, loss of motion and function

• Skin changes (warm, red, dry skin changes to cold [cyanotic], sweaty skin)

• Accelerated hair growth (usually dark hair in patches)

Stage II (subacute, lasting 3 to 6 months)

• Severity of pain increases

• Swelling may spread; tissue goes from soft to boggy to firm

• Muscle atrophy

• Skin becomes cool, pale, bluish, sweaty

• Nail bed changes (cracked, grooved, ridges)

• Bone demineralization (early onset of osteoporosis)

Stage III (chronic, lasting more than 6 months)

• Pain may stay same, improve, or get worse; variable

• Irreversible tissue damage

• Muscle atrophy and contractures

• Skin becomes thin and shiny

• Nails are brittle

• Osteoporosis

Thoracic Outlet Syndrome

Compression of the neurovascular bundle consisting of the brachial plexus and subclavian artery and vein (see Fig. 17-10) can cause a variety of symptoms affecting the arm, hand, shoulder girdle, neck, and chest (Case Example 18-8). Risk factors and clinical presentation are discussed more completely in Chapter 17.

Case Example 18-8   House Painter

Referral: A 44-year-old female referred herself to physical therapy for a 2-month-long history of right upper trapezius and right shoulder pain. She works as a house painter and thinks the symptoms came on after a difficult job with high ceilings.

She reports new symptoms of dizziness when getting up too fast from bed or from a chair. She is seeing a chiropractor and a naturopathic physician for a previous back injury 2 years ago when she fell off a ladder.

She wants to try physical therapy since she has reached a “plateau” with her chiropractic care.

Past Medical History: Other significant past medical history includes a total hysterectomy 4 years ago for unexplained heavy menstrual bleeding. She does not smoke or use tobacco products but admits smoking marijuana occasionally and being a “social drinker” (wine coolers and beer on the weekends or at barbeques).

She is nulliparous (never pregnant). She is not on any medications except ibuprofen as needed for headaches. She takes a variety of nutritional supplements given to her by the naturopath. No recent history of infections or illness.

Clinical Presentation: There is no numbness or tingling anywhere in her body. No changes in vision, balance, or hearing. The client reports normal bowel and bladder function. Neurologic screen was within normal limits (WNL).

Postural screen: Moderate forward head position, rounded shoulders, arms held in a position of shoulder internal rotation, minimal lumbar lordosis
Temporomandibular joint (TMJ) screen: Negative
Vertebral artery tests: Negative
Upper extremity (UE) range of motion (ROM): Limited right shoulder internal rotation; all other motions in both UEs were full and pain free
Spurling’s test: Negative
Cervical spine mobility test: Restriction of the left C4-5; no apparent cervical instabilities; tenderness along the entire right cervical spine with mild hypertonus
Trigger points (TrPs): Positive for right sternocleidomastoid, right upper trapezius, and right levator scapula TrPs

Are there any red flags to suggest the need to screen for medical disease? What other tests (if any) would you like to do before making this decision?

• Age

• Unexplained dizziness

• Failure to progress with chiropractic care

• Surgical menopause and nulliparity (both increase her risk for breast cancer; early menopause puts her at risk for osteoporosis and accelerated atherosclerosis/heart disease)

Assessment: It is likely the client’s symptoms are directly related to postural overuse. Long hours with her arms overhead may be contributing factors. A more complete exam for thoracic outlet syndrome (TOS) is warranted. Physical therapy intervention can be initiated, but must be reevaluated on an on-going basis. Eliminating the TrPs, improving her posture, and restoring full shoulder and neck motion will aid in the differential diagnosis.

The therapist should assess vital signs, including blood pressure measurements in both arms (looking for a vascular component of TOS) and from supine to sit to stand to assess for postural orthostatic hypotension. True postural hypotension must be accompanied by both blood pressure and pulse rate changes.

Depending on the results, medical evaluation may be warranted, especially if no underlying cause can be found for the dizziness. Although there is no reported visual change or loss of balance with the dizziness, a vestibular screening examination is warranted.

Given her age and risk factors, she should be asked when her last physical exam was done. If she has not been seen since her hysterectomy or within the last 12 months, she should be advised to see her personal physician for follow-up.

She should be encouraged to exercise on a regular basis (more education can be provided depending on her level of knowledge and the therapist’s level of expertise in this area).

If baseline bone density studies have not been done, then she should pursue this now. Likewise, she should ask her doctor about baseline testing for thyroid, glucose, and lipid values if these are not already available.

In a primary care practice, risk factor assessment is a key factor in knowing when to carry out a screening evaluation. Patient education about personal health choices is also essential.

In any practice, we must know what impact medical conditions can have on the neuromuscular and musculoskeletal systems and watch for any links between the visceral and the somatic systems.

Bacterial Endocarditis

The most common musculoskeletal symptom in clients with bacterial endocarditis is arthralgia, generally in the proximal joints. The shoulder is affected most often, followed (in declining incidence) by the knee, hip, wrist, ankle, metatarsophalangeal and metacarpophalangeal joints, and by acromioclavicular involvement.

Most clients with endocarditis-related arthralgias have only one or two painful joints, although some may have pain in several joints. Painful symptoms begin suddenly in one or two joints, accompanied by warmth, tenderness, and redness. One helpful clue: As a rule, morning stiffness is not as prevalent in clients with endocarditis as in those with rheumatoid arthritis or polymyalgia rheumatica.

Pericarditis

The inflammatory process accompanying pericarditis may result in an accumulation of fluid in the pericardial sac, preventing the heart from expanding fully. The subsequent chest pain of pericarditis (see Fig. 6-10) closely mimics that of a MI because it is substernal, is associated with cough, and may radiate to the shoulder.35 It can be differentiated from MI by the pattern of relieving and aggravating factors.

For example, pericarditis pain is sharp and relieved by leaning over when seated. If there is irritation of the diaphragm, it can cause shoulder pain. The pain of MI is unaffected by position, breathing, or movement, whereas the chest and shoulder pain associated with pericarditis may be relieved by kneeling with hands on the floor, leaning forward, or sitting upright. Pericardial pain is often made worse by deep breathing, swallowing, or belching.

Aortic Aneurysm

Aortic aneurysm appears as sudden, severe chest pain with a tearing sensation (see Fig. 6-11), and the pain may extend to the neck, shoulders, lower back, or abdomen but rarely to the joints and arms, which distinguishes it from MI.

Isolated shoulder pain is not associated with aortic aneurysm; shoulder pain (usually left shoulder) occurs when the primary pain pattern radiates up and over the trapezius and upper arm(s) (see Fig. 6-11).36 The client may report a bounding or throbbing pulse (heartbeat) in the abdomen. Risk factors and other associated signs and symptoms help distinguish this condition.

Deep Venous Thrombosis of the Upper Extremity

DVT of the upper extremity is not as common as in the lower extremity but incidence may be on the rise due to the increasing use of peripherally inserted central catheters (PICC lines) or central venous catheters (CVC).37,38 Thrombosis affects the subclavian vein, axillary vein, or both most often with less common sites being the internal jugular and brachial veins.39

CVCs are frequently used in people with hematologic/oncologic disorders in order to administer drugs, stem cell infusions, blood products, parenteral alimentation, and blood sampling. Other risk factors include blood clotting disorders,40 clavicle fracture,41 insertion of pacemaker wires, and arthroscopy of the shoulder or reconstructive shoulder arthroplasty.42,43 Thrombosis is the second-leading cause of death in cancer patients, and cancer is a major risk factor of venous thromboembolism (VTE), due to activation of coagulation, use of long-term CVC, and the thrombogenic effects of chemotherapy and anti-angiogenic drugs.44

Symptoms (when present) are similar as for the lower extremity (see discussion in Chapter 6). The therapist should be aware of the presence of any risk factors and watch for pain and pitting edema or swelling of the entire (usually upper) limb and/or an area of the limb that is 2 cm or more larger than the surrounding area indicating swelling requiring further investigation.

Other symptoms include redness or warmth of the arm, dilated veins, or low-grade fever possibly accompanied by chills and malaise. Bruising or discoloration of the area or proximal to the thrombosis has been observed in some cases.45 Swelling can contribute to decreased neck or shoulder motion. Severe thromboses can cause superior vena cava syndrome; symptoms include edema of the face and arm, vertigo, and dyspnea.46

Unfortunately, the first clinical manifestation of deep thrombosis may be pulmonary embolism (PE; see also Box 6-2 for overall risk factors for DVT and PE); superficial venous thrombosis is usually self-limiting and does not cause PE since the blood flow to deeper veins is through small perforating venous channels.47

PE as a consequence of upper extremity DVT can be fatal.43 Chronic venous insufficiency or postthrombotic syndrome are possible sequelae to upper extremity DVT.45,48

To our knowledge, at this time, a validated screening tool, such as the Wells’ Clinical Decision Rule for DVT, has not been investigated for the upper extremity. A simple model to predict upper extremity DVT has also been proposed and remains under investigation (Table 18-3).49 The best available test for the diagnosis of upper extremity DVT is contrast venography; color Doppler ultrasonography may be preferred for some people because it is noninvasive.50

TABLE 18-3

Possible Predictors of Upper Extremity Deep Venous Thrombosis*

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note: As with lower extremity deep venous thrombosis (DVT), a low clinical probability does not exclude the diagnosis of upper extremity DVT. The scoring provides a tool to use in determining the need for additional testing (e.g., ultrasonography, venography).

Key: Total score of:

−1.0 or 0: Low probability of upper extremity DVT

1: Intermediate probability

2-3: High probability

*Concepts presented here are based on one preliminary study validated in a second sample but with a limited patient population; diagnosis was confirmed with ultrasound study.49

Clinical Signs and Symptoms

Upper Extremity Deep Venous Thrombosis

• Numbness or heaviness of the extremity

• Itching, burning, coldness of the extremity

• Swelling, discoloration, warmth, or redness of the extremity; pitting edema

• Limited range of motion (ROM) of neck, shoulder

• Low-grade fever, chills, malaise

• For individuals with a PICC line (in addition to any of the signs and symptoms listed above):

• Pain or tenderness at or above the insertion site

Screening for Renal Causes of Upper Quadrant/Shoulder Pain

The anatomic position of the kidneys (and ureters) is in front of and on both sides of the vertebral column at the level of T11 to L3. The right kidney is usually lower than the left.51 The lower portions of the kidneys and the ureters extend below the ribs and are separated from the abdominal cavity by the peritoneal membrane. Because of its location in the posterior upper abdominal cavity in the retroperitoneal space, touching the diaphragm, the upper urinary tract can refer pain to the (ipsilateral) shoulder on the same side as the involved kidney.

Renal sensory innervation is not completely understood; the capsule (covering of the kidney) and the lower portions of the collecting system seem to cause pain with stretching (distention) or puncture. Information transmitted by renal and ureteral pain receptors is relayed by sympathetic nerves that enter the spinal cord at T10 to L1; therefore renal and ureteral pain is typically felt in the posterior subcostal and costovertebral regions (flank).52-54

Renal pain is aching and dull in nature but can occasionally be a severe, boring type of pain. The distention or stretching of the renal capsule, pelvis, or collecting system from intrarenal fluid accumulation (e.g., inflammatory edema, inflamed or bleeding cysts, and bleeding or neoplastic growths) accounts for the constant, dull, and aching quality of reported pain. Ischemia of renal tissue caused by blockage of blood flow to the kidneys can produce either a constant dull or sharp pain. True renal pain is seldom affected by change in position or movements of the shoulder or spine.

If the diaphragm becomes irritated because of pressure from a renal lesion, ipsilateral shoulder pain can be the only symptom or may occur in conjunction with other pain and associated signs and symptoms. For example, generalized abdominal pain may develop accompanied by nausea, vomiting, and impaired intestinal motility (progressing to intestinal paralysis) when pain is acute and severe. Nerve fibers from the renal plexus are also in direct communication with the spermatic plexus, and because of this close relationship, testicular pain may also accompany renal pain in males.55

Elevation in temperature or changes in color, odor, or amount of urine (flow, frequency, nocturia) presenting with shoulder pain should be reported to a physician. Shoulder pain that is not affected by movement or provocation tests requires a closer look.

The presence of constitutional symptoms, constant pain (even if dull), and failure to change the symptoms with a position change will also alert the therapist to the need for a more thorough screening examination. A past medical history of cancer is always an important risk factor requiring careful assessment. This is true even when patients/clients have a known or traumatic cause for their symptoms.

Flank pain combined with unexplained weight loss, fever, pain, and hematuria should be reported to the physician. The presence of any amount of blood in the urine always requires referral to a physician for further diagnostic evaluation because this is a primary symptom of urinary tract neoplasm.

Additionally, therapists need to be cognizant that those at high risk for chronic renal disease with associated neuropathies include anyone with diabetes and those with history of significant nonsteroidal antiinflammatory drug (NSAID) or acetaminophen use.56

Screening for Gastrointestinal Causes of Shoulder Pain

Upper abdominal or GI problems with diaphragmatic irritation can refer pain to the ipsilateral shoulder. Perforated gastric or duodenal ulcers, gallbladder disease, and hiatal hernia are the most likely GI causes of shoulder pain seen in the physical therapy clinic. Usually there are associated signs and symptoms, such as nausea, vomiting, anorexia, melena, or early satiety, but the client may not connect the shoulder pain with GI disorders. A few screening questions may be all that is needed to uncover any coincident GI symptoms.

The therapist should look for a history of previous ulcer, especially in association with the use of NSAIDs. Shoulder pain that is worse 2 to 4 hours after taking the NSAID can be suggestive of GI bleeding and is considered a yellow (caution) flag. With a true musculoskeletal problem, peak NSAID dosage (usually 2 to 4 hours after ingestion; variable with each drug) should reduce or alleviate painful shoulder symptoms. Any pain increase instead of decrease may be a symptom of GI bleeding.

The therapist must also ask about the effect of eating on shoulder pain. If eating makes shoulder pain better or worse (anywhere from 30 minutes to 2 hours after eating), there may be a GI problem. The client may not be aware of the link between these two events until the therapist asks. If the client is not sure, follow-up at a future appointment and ask again if the client has noticed any unusual symptoms or connection between eating and shoulder pain.

Screening for Liver and Biliary Causes of Shoulder/Upper Quadrant Symptoms

As with many of the organ systems in the human body, the hepatic and biliary organs (liver, gallbladder, and common bile duct) can develop diseases that mimic primary musculoskeletal lesions.

The musculoskeletal symptoms associated with hepatic and biliary pathologic conditions are generally confined to the midback, scapular, and right shoulder regions. These musculoskeletal symptoms can occur alone (as the only presenting symptom) or in combination with other systemic signs and symptoms. Fortunately, in most cases of shoulder pain referred from visceral processes, shoulder motion is not compromised and local tenderness is not a prominent feature.

Diagnostic interviewing is especially helpful when clients have avoided medical treatment for so long that shoulder pain caused by hepatic and biliary diseases may in turn create biomechanical changes in muscular contractions and shoulder movement. These changes eventually create pain of a biomechanical nature.57

Referred shoulder pain may be the only presenting symptom of hepatic or biliary disease. Sympathetic fibers from the biliary system are connected through the celiac and splanchnic plexuses to the hepatic fibers in the region of the dorsal spine. These connections account for the intercostal and radiating interscapular pain that accompanies gallbladder disease (see Fig. 9-10). Although the innervation is bilateral, most of the biliary fibers reach the cord through the right splanchnic nerves, producing pain in the right shoulder.

Carpal Tunnel Syndrome

There are many potential causes of carpal tunnel syndrome (CTS), both musculoskeletal and systemic (see Table 11-2). Careful evaluation is required (see Box 9-1). The presence of bilateral carpal tunnel syndrome warrants a closer look. For example, liver dysfunction resulting in increased serum ammonia and urea levels can result in impaired peripheral nerve function.

Ammonia from the intestine (produced by protein breakdown) is normally transformed by the liver to urea, glutamine, and asparagine, which are then excreted by the renal system. When the liver does not detoxify ammonia, ammonia is transported to the brain, where it reacts with glutamate (excitatory neurotransmitter), producing glutamine.

The reduction of brain glutamate impairs neurotransmission, leading to altered central nervous system metabolism and function. Asterixis and numbness/tingling (misinterpreted as carpal tunnel syndrome) can occur as a result of this ammonia abnormality, causing an intrinsic nerve pathologic condition (see Case Example 9-1).

For any client presenting with bilateral carpal tunnel syndrome:

• Ask about the presence of similar symptoms in the feet

• Ask about a personal history of liver or hepatic disease (e.g., cirrhosis, cancer, hepatitis)

• Look for a history of hepatotoxic drugs (see Box 9-3)

• Look for a history of alcoholism

• Ask about current or previous use of statins (cholesterol-lowering drugs such as Crestor, Lipitor, or Zocor)

• Look for other signs and symptoms associated with liver impairment (see Clinical Signs and Symptoms of Liver Disease in Chapter 9)

• Test for signs of liver disease

• Skin color changes

• Spider angiomas

• Palmar erythema (liver palms)

• Nail bed changes (e.g., white nails of Terry, white bands, clubbing)

• Asterixis (liver flap)

Screening for Rheumatic Causes of Shoulder Pain

A number of systemic rheumatic diseases can appear as shoulder pain, even as unilateral shoulder pain. The HLA-B27–associated spondyloarthropathies (diseases of the joints of the spine), such as ankylosing spondylitis, most frequently involve the SI joints and spine. Involvement of large central joints, such as the hip and shoulder, is common, however.

Rheumatoid arthritis (RA) and its variants likewise frequently involve the shoulder girdle. These systemic rheumatic diseases are suggested by the details of the shoulder examination, by coincident systemic complaints of malaise and easy fatigability, and by complaints of discomfort in other joints either coincidental with the presenting shoulder complaint or in the past.

Other systemic rheumatic diseases with major shoulder involvement include polymyalgia rheumatica and polymyositis (inflammatory disease of the muscles). Both may be somewhat asymmetric but almost always appear with bilateral involvement and impressive systemic symptoms.

Screening for Infectious Causes of Shoulder Pain

The most likely infectious causes of shoulder pain in a physical therapy practice include infectious (septic) arthritis (see discussion in Chapter 3 and also Box 3-6), osteomyelitis, and infectious mononucleosis (mono). Immunosuppression for any reason puts people of all ages at risk for infection (Case Example 18-9).

Case Example 18-9

Osteomyelitis

Referral: SC, an active 62-year-old cardiac nurse, was referred by her orthopedic surgeon for “PT [for] possible rotator cuff tear (RCT), 3 times a week for 4 weeks.” SC reported an “open” magnetic resonance imaging (MRI) was negative for RCT and plain films were also negative. She noted that laboratory testing was not done.

Past Medical History

Medications: Current medications included Motrin 800 mg tid for pain; Decadron 0.75 mg qid for atypical dermatitis and asthma (45-year use of corticosteroids); Avapro 75 mg qid to control hypertension; HydroDIURIL 25 mg qid to counteract fluid retention from corticosteroids; and Chlor-Trimeton 12 mg qid to suppress the high level of blood histamine resulting from the long-term comorbid condition of atypical dermatitis and asthma.

Social History: The client consumes one glass of wine per day, quit smoking 20 years ago, and has never done illicit drugs.

Clinical Presentation

Pain Pattern: The client presented with primary complaints of severe and limiting pain of nearly four weeks duration with any active movement at her left shoulder and at rest. Her pain was rated on the visual analogue scale (VAS) as 7/10 at rest and 9/10 to 10/10 with motion at glenohumeral (GH) joint. Pain onset was gradual over a 3-day period; she was not aware of injury or trauma.

She reported an inability to (1) use her left upper extremity (UE); (2) lie on or bear weight on left side; (3) perform activities of daily living (ADLs); (4) sleep uninterrupted due to pain, awakening 4 or 5 times nightly; or (5) participate in regular weekly Yoga classes.

Vital Signs: Temperature: 37° C (98.6° F.); blood pressure: 120/98 mm Hg. SC reported that her medication combination of Decadron and Chlor-Trimeton had been implicated in the past by her physician as acting to suppress low-grade fevers.

Observation: Slight puffiness, minimal swelling, observed in the left supraclavicular area. SC holds left UE at her side with the elbow flexed to 90 degrees and the shoulder held in internal rotation.

Standing posture: Forward head position with increased cervical spine lordosis and thoracic spine kyphosis, with an inability to attain neutral or reverse either spinal curve.

Palpation revealed exquisite tenderness at distal clavicle and both anterior and posterior aspects of proximal humerus.

Cervical spine screen: Spurling’s compression, distraction, and Cervical Quadrant testing were all negative; deep tendon reflexes (DTRs) at C5, C6, and C7 were symmetrically increased bilaterally; dermatomal testing was within normal limits (WNL); myotomes could not be reliably tested due to pain.

Special tests at the shoulder could not be performed or were unreliable due to pain limitation.

Range of motion (ROM): Left GH joint active ROM (AROM) and passive ROM (PROM) were severely limited. AROM: Unable to actively perform flexion or abduction at left shoulder. PROM left shoulder (measured in supine with arm at side and elbow flexed to 90 degrees):

Flexion: 35 degrees
Abduction: 35 degrees
Internal rotation: 50 degrees
External rotation: −10 degrees

All ranges were pain limited with an “empty” end feel.

Evaluation/Assessment: SC’s signs, symptoms, and examination findings were consistent with those of a severe, full-thickness RCT, including severity of pain and functional loss with empty end feel at GH joint ROM. However, the inability to perform special tests limited the certainty of the RCT diagnosis.

Red flags included age over 50, severe loss of motion with empty end feel, constancy and severity of pain, inability to relieve pain or obtain a comfortable position, bony tenderness, and insidious onset of the condition. Additional risk factors included long-term use of corticosteroids to treat atypical dermatitis with asthma.

Based on the objective examination findings, including swelling, bone tenderness, along with the severity and unrelenting nature of her pain, the presence of a more serious underlying systemic medical condition was considered (in addition to a possible unconfirmed RCT).

Associated Signs and Symptoms: SC denied a fever, chills, night sweats, pain in other joints or bones, weight loss, abdominal pain, nausea or vomiting.

Outcomes: The client made very little progress after the prescribed physical therapy intervention. The severity of pain and functional loss remained unchanged. Numerous attempts were made by the client and the therapist to discuss this case with the referring physician. The client eventually referred herself to a second physician.

Result: The client was diagnosed with osteomyelitis as a result of a repeat MRI and a triple-phase bone scan, and laboratory test results of elevated levels of erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) values. A surgical biopsy confirmed the diagnosis. She underwent three different surgical procedures culminating in a total shoulder arthroplasty (TSA) along with repair of the full-thickness RCT.

From West PR: Case report presented in fulfillment of DPT 910, Institute for Physical Therapy Education, Widener University, Chester, PA, 2005. Used with permission.

Septic arthritis of the acromioclavicular joint (ACJ) or hand can present as insidious onset of shoulder pain. Likewise, septic arthritis of the sternoclavicular joint (SCJ) can present as chest pain. Usually, there is local tenderness at the affected joint. A possible history of intravenous drug use, diabetes, trauma (puncture wound, surgery, human or animal bite), and infection is usually present. Punching someone in the mouth (hand coming in contact with teeth resulting in a puncture wound) has been reported as a potential cause of septic arthritis. With infection of this type, there may or may not be constitutional symptoms.58,59

Osteomyelitis (bone or bone marrow infection) is caused most commonly by Staphylococcus aureus. Children under 6 months of age are most likely to be affected by Haemophilus influenzae or Streptococcus. Hematogenous spread from a wound, abscess, or systemic infection (e.g., fracture, tuberculosis, urinary tract infection, upper respiratory infection, finger felons) occurs most often. Osteomyelitis of the spine is associated with injection drug use.

Onset of clinical signs and symptoms is usually gradual in adults but may be more sudden in children with high fever, chills, and inability to bear weight through the affected joint. In all ages there is marked tenderness over the site of the infection when the affected bone is superficial (e.g., spinous process, distal femur, proximal tibia). The most reliable way to recognize infection is the presence of both local and systemic symptoms.

Mononucleosis is a viral infection that affects the respiratory tract, liver, and spleen. Splenomegaly with subsequent rupture is a rare but serious cause of left shoulder pain (Kehr’s sign).60 There is usually left upper abdominal pain and, in many cases, trauma to the enlarged spleen (e.g., sports injury) is the precipitating cause in an athlete with an unknown or undiagnosed case of mono. Palpation of the upper left abdomen may reveal an enlarged and tender spleen (see Fig. 4-53).

The virus can be present 4 to 10 weeks before any symptoms develop so the person may not know mono is present. Acute symptoms can include sore throat, headache, fatigue, lymphadenopathy, fever, myalgias, and sometimes, skin rash. Enlarged tonsils can cause noisy or difficult breathing. When asking about the presence of other associated signs and symptoms (current or recent past), the therapist may hear a report of some or all of these signs and symptoms.

Screening for Oncologic Causes of Shoulder Pain

A past medical history of cancer anywhere in the body with new onset of back or shoulder pain (or impairment) is a red-flag finding. Brachial plexus radiculopathy can occur in either or both arms with cancer metastasized to the lymphatics (Case Example 18-10).

Case Example 18-10   Upper Extremity Radiculopathy

Referral: A 72-year-old woman was referred to physical therapy by her neurologist with a diagnosis of “nerve entrapment” for a postural exercise program and home traction. She was experiencing symptoms of left shoulder pain with numbness and tingling in the ulnar nerve distribution. She had a moderate forward head posture with slumped shoulders and loss of height from known osteoporosis.

Past Medical History: The woman’s past medical history was significant for right breast cancer treated with a radical mastectomy and chemotherapy 20 years ago. She had a second cancer (uterine) 10 years ago that was considered separate from her previous breast cancer.

Clinical Presentation: The physical therapy examination was consistent with the physician’s diagnosis of nerve entrapment in a classic presentation. There were significant postural components to account for the development of symptoms. However, the therapist palpated several large masses in the axillary and supraclavicular fossa on both the right and left sides. There was no local warmth, redness, or tenderness associated with these lesions. The therapist requested permission to palpate the client’s groin and popliteal spaces for any other suspicious lymph nodes. The rest of the examination findings were within normal limits.

Associated Signs and Symptoms: Further questioning about the presence of associated signs and symptoms revealed a significant disturbance in sleep pattern over the last 6 months with unrelenting shoulder and neck pain. There were no other reported constitutional symptoms, skin changes, or noted lumps anywhere. Vital signs were unremarkable at the time of the physical therapy evaluation.

Result: Returning this client to her referring physician was a difficult decision to make since the therapist did not have the benefit of the medical records or results of neurologic examination and testing. Given the significant past medical history for cancer, the woman’s age, presence of progressive night pain, and palpable masses, no other reasonable choice remained. When asked if the physician had seen or felt the masses, the client responded with a definite “no.”

There are several ways to approach handling a situation like this one, depending on the physical therapist’s relationship with the physician. In this case the therapist had never communicated with this physician before. A telephone call was made to ask the clerical staff to check the physician’s office notes (the client had provided written permission for disclosure of medical records to the therapist).

It is possible that the physician was aware of the masses, knew from medical testing that there was extensive cancer, and chose to treat the client palliatively. Since there was no indication of such, the therapist notified the physician’s staff of the decision to return the client to the physician. A brief (one-page) written report summarizing the findings was given to the client to hand-carry to the physician’s office.

Further medical testing was performed, and a medical diagnosis of lymphoma was made.

Questions about visceral function are relevant when the pattern for malignant invasion at the shoulder emerges. Invasion of the upper humerus and glenoid area by secondary malignant deposits affects the joint and the adjacent muscles (Case Example 18-11).

Case Example 18-11

Shoulder and Leg Pain

Referral: A 33-year-old woman came to a physical therapy clinic located inside a large health club. She reported right shoulder and right lower leg pain that is keeping her from exercising. She could walk but had an antalgic gait secondary to pain on weight bearing.

She linked these symptoms with heavy household chores. She could think of no other trauma or injury. She was screened for the possibility of domestic violence with negative results.

Past Medical History: There was no past history of disease, illness, trauma, or surgery. There were no other symptoms reported (e.g., no fever, nausea, fatigue, bowel or bladder changes, sleep disturbance).

Clinical Presentation: The right shoulder and right leg were visibly and palpably swollen. Any and all (global) motions of either the arm or the leg were painful. The skin was tender to light touch in a wide band of distribution around the painful sites. No redness or skin changes of any kind were noted.

Pain prevented strength testing or assessment of muscle weakness. There was no sign of scoliosis. Trendelenburg test was negative, bilaterally. Functionally, she was able to climb stairs and walk, but these and other activities (e.g., exercising, biking, household chores) were limited by pain.

How do you screen this client for systemic or medical disease?

You may have done as much screening as is possible. Pain is limiting any further testing. Assessing vital signs may provide some helpful information.

She has denied any past medical history to link with these symptoms. Her age may be a red flag in that she is young. Bone pain with these symptoms in a 33-year-old is a red flag for bone pathology and needs to be investigated medically.

Immediate medical referral is advised.

Result: X-rays of the right shoulder showed complete destruction of the right humeral head consistent with a diagnosis of metastatic disease. X-rays of the right leg showed two lytic lesions. There was no sign of fracture or dislocation. Computed tomography (CT) scans showed destructive lytic lesions in the ribs and ilium.

Additional testing was performed, including lab values, bone biopsy, mammography, and pelvic ultrasonography. The client was diagnosed with bone tumors secondary to hyperparathyroidism.

A large adenoma was found and removed from the left inferior parathyroid gland. Medical treatment resulted in decreased pain and increased motion and function over a period of 3 to 4 months. Physical therapy intervention was prescribed for residual muscle weakness.

Data from Insler H: Shoulder and leg pain in a 33-year-old woman, J Musculoskel Med 14(6)36–37, 1997.

Muscle wasting is greater than expected with arthritis and follows a bizarre pattern that does not conform to any one neurologic lesion or any one muscle. Localized warmth felt at any part of the scapular area may prove to be the first sign of a malignant deposit eroding bone. Within 1 or 2 weeks after this observation, a palpable tumor will have appeared, and erosion of bone will be visible on x-ray films.61

Primary Bone Neoplasm

Bone cancer occurs chiefly in young people, in whom a causeless limitation of movement of the shoulder leads the physician to order x-rays. If the tumor originates from the shaft of the humerus, the first symptoms may be a feeling of “pins and needles” in the hand, associated with fixation of the biceps and triceps muscles and leading to limitation of movement at the elbow (Case Example 18-12).

Case Example 18-12   Osteosarcoma

Referral: A 14-year-old boy presented to a physical therapist at a sports medicine clinic with a complaint of left shoulder pain that had been present off and on for the last 4 months. There was no reported history of injury or trauma despite active play on the regional soccer team.

Past Medical History: He has seen his pediatrician for this on several occasions. It was diagnosed as “tendinitis” with the suggestion to see a physical therapist of the family’s choice. No x-rays or other diagnostic imaging was performed to date. The client could not remember if any laboratory work (blood or urinalysis) had been done.

The client reports that his arm feels “heavy.” Movement has become more difficult just in the last week. The only other symptom present was intermittent tingling in the left hand. There is no other pertinent medical history.

Clinical Presentation: Physical examination of the shoulder revealed moderate loss of active motion in shoulder flexion, abduction, and external rotation with an empty end feel and pain during passive range of motion. There was no pain with palpation or isometric resistance of the rotator cuff tendons. Gross strength of the upper extremity was 4/5 for all motions.

There was a palpable firm, soft, but fixed mass along the lateral proximal humerus. The client reported it was “tender” when the therapist applied moderate palpatory pressure. The client was not previously aware of this lump.

Upper extremity pulses, deep tendon reflexes, and sensation were all intact. There were no observed skin changes or palpable temperature changes. Since this was an active athlete with left shoulder pain, screening for Kehr’s sign was carried out but was apparently negative.

What are the red flags?

• Age

• Suspicious palpable lesion (likely not present at previous medical evaluation)

• Lack of medical diagnostics

• Unusual clinical presentation for tendinitis with loss of motion and empty end feel but intact rotator cuff

Result: The therapist telephoned the physician’s office to report possible changes since the physician’s last examination. The family was advised by the doctor’s office staff to bring him to the clinic as a walk-in the same day. X-rays showed an irregular bony mass of the humeral head and surrounding soft tissues. The biopsy confirmed a diagnosis of osteogenic sarcoma. The cancer had already metastasized to the lungs and liver.

Pulmonary (Secondary) Neoplasm

Occasionally, the client requires medical referral because shoulder pain is referred from metastatic lung cancer. When the shoulder is examined, the client is unable to lift the arm beyond the horizontal position. Muscles respond with spasm that limits joint movement.

If the neoplasm interferes with the diaphragm, diaphragmatic pain (C3 to C5) is often felt at the shoulder at each breath (at the fourth cervical dermatome [i.e., at the deltoid area]), in correspondence with the main embryologic derivation of the diaphragm.62 Pain arising from the part of the pleura that is not in contact with the diaphragm is also brought on by respiration but is felt in the chest.

Although the lung is insensitive, large tumors invading the chest wall set up local pain and cause spasm of the pectoralis major muscle, with consequent shoulder pain and/or limitation of elevation of the arm.63 If the neoplasm encroaches on the ribs, stretching the muscle attached to the ribs leads to sympathetic spasm of the pectoralis major. By contrast, the scapula is mobile, and a full range of passive movement is present at the shoulder joint.

Pancoast’s Tumor

Pancoast’s tumors of the lung apex usually do not cause symptoms while confined to the pulmonary parenchyma. Shoulder pain occurs if they extend into the surrounding structures, infiltrating the chest wall into the axilla. Occasionally, brachial plexus involvement (eighth cervical and first thoracic nerve) presents with radiculopathy.64

This nerve involvement produces sharp neuritic pain in the axilla, shoulder, and subscapular area on the affected side, with eventual atrophy of the upper extremity muscles. Bone pain is aching, exacerbated at night, and a cause of restlessness and musculoskeletal movement.65

Usually, general associated systemic signs and symptoms are present (e.g., sore throat, fever, hoarseness, unexplained weight loss, productive cough with blood in the sputum). These features are not found in any regional musculoskeletal disorder, including such disorders of the shoulder.

For example, a similar pain pattern caused by trigger points (TrPs) of the serratus anterior can be differentiated from neoplasm by the lack of true neurologic findings (indicating trigger point) or by lack of improvement after treatment to eliminate the trigger point (indicating neoplasm).

Breast Cancer

Breast cancer or breast cancer recurrence is always a consideration with upper quadrant pain or shoulder dysfunction (Case Example 18-13). The therapist must know what to look for as red flags for cancer recurrence versus delayed effects of cancer treatment. See Chapter 13 for a complete discussion of cancer screening and prevention. Breast cancer is discussed in Chapter 17.

Case Example 18-13   Breast Cancer

Referral: A 53-year-old woman with severe adhesive capsulitis was referred to a physical therapist by an orthopedic surgeon. A physical therapy program was initiated. When the client’s shoulder flexion and abduction allowed for sufficient movement to place the client’s hand under her head in the supine position, ultrasound to the area of capsular redundancy before joint mobilization was added to the treatment protocol.

During the treatment procedure, the client was dressed in a hospital gown wrapped under the axilla on the involved side. With the client in the supine position, the upper outer quadrant of breast tissue was visible and the physical therapist observed skin puckering (peau d’orange) accompanied by a reddened area.

Result: It is always necessary to approach situations like this one carefully to avoid embarrassing or alarming the client. In this case the therapist casually observed, “I noticed when we raised your arm up for the ultrasound that there is an area of your skin here that puckers a little. Have you noticed any changes in your armpit, chest, or breast areas?”

Depending on the client’s response, follow-up questions should include asking about distended veins, discharge from the nipple, itching of the skin or nipple, and the approximate time of the client’s last breast examination (self-examination and physician examination). Although not all therapists are trained to perform a clinical breast exam (CBE), palpation of lymph nodes and muscles such as the pectoral muscle groups can be performed.

There was no previous history of cancer, and further palpation did not elicit any other suspicious findings. The physical therapist recommended a physician evaluation, and a diagnosis of breast cancer was made.

Magnetic resonance imaging (MRI) studies have shown radiation-induced muscle morbidity in cervical, prostate, and breast cancer. Axillary radiation is a predictive factor for the development of shoulder morbidity.66 Soft tissue changes from radiotherapy is dose dependent and may develop immediately or develop several years later.

Primary muscle shortening and secondary loss of muscle activity may produce movement disorders of the shoulder and/or upper quadrant. Radiation-induced changes in vascular networks resulting in ischemia may affect muscle contractility.67

Screening for Gynecologic Causes of Shoulder Pain

Shoulder pain as a result of gynecologic conditions is uncommon, but still very possible. Occasionally a client may present with breast pain as the primary complaint, but most often the description is of shoulder or arm, neck, or upper back pain. When asked if the client has any symptoms anywhere else in the body, breast pain may be mentioned.

Pain patterns associated with breast disease along with a discussion of various breast pathologies are included in Chapter 17. Many of the breast conditions discussed (e.g., tumors, infections, myalgias, implants, lymph disease, trauma) can refer pain to the shoulder either alone or in conjunction with chest and/or breast pain. Shoulder pain or dysfunction in the presence of any of these conditions as part of the client’s current or past medical history raises a red flag.

Ectopic Pregnancy

The therapist must be aware of one other gynecologic condition commonly associated with shoulder pain: ectopic (extrauterine [i.e., outside the uterus]) pregnancy. This type of pregnancy occurs when the fertilized egg implants in some other part of the body besides inside the uterus. It may be inside the fallopian tube, inside the ovary, outside the uterus or even within the lining of the peritoneum (see Fig. 15-5).25-27

If the condition goes undetected, the embryo grows too large for the confined space. A tear or rupture of the tissue around the fertilized egg will occur. An ectopic pregnancy is not a viable pregnancy and cannot result in a live birth. This condition is life threatening and requires immediate medical referral.

The most common symptom of ectopic pregnancy is a sudden, sharp or constant one-sided pain in the lower abdomen or pelvis lasting more than a few hours. The pain may be accompanied by irregular bleeding or spotting after a light or late menstrual period.

Shoulder pain does not usually occur alone without preceding or accompanying abdominal pain, but shoulder pain can be the only presenting symptom with an ectopic pregnancy. When these two symptoms occur together (either alternating or simultaneously), the woman may not realize the abdominal and shoulder pain are connected. She may think there are two separate problems. She may not see the need to tell the therapist about the pelvic or abdominal pain, especially if she thinks it is menstrual cramps or gas. In addition, ask about the presence of lightheadedness, dizziness, or fainting.

The most likely candidate for an ectopic pregnancy is a woman in the childbearing years who is sexually active. Pregnancy can occur when using any form of birth control, so do not be swayed into thinking the woman cannot be pregnant because she is on the pill or some other form of contraception. Factors that put a woman at increased risk for an ectopic pregnancy include:

• History of endometriosis68

• Pelvic inflammatory disease (PID)

• Previous ectopic pregnancy

• Ruptured ovarian cysts or ruptured appendix

• Tubal surgery

Many of these conditions can also cause pelvic pain and are discussed in greater detail in Chapter 15. If the therapist suspects a gynecologic basis for the client’s symptoms, some additional questions about past history, missed menses, shoulder pain, and spotting or bleeding may be helpful.

Physician Referral

Here in the last chapter of the text there are no new guidelines for physician referral that have not been discussed in the previous chapters. The therapist must remain alert to yellow (caution) or red (warning) flags in the history and clinical presentation, and ask about associated signs and symptoms.

When symptoms seem out of proportion to the injury or persist beyond the expected time of healing, medical referral may be needed.69 Likewise, pain that is unrelieved by rest or change in position or pain/symptoms that do not fit the expected mechanical or NMS pattern should serve as red-flag warnings. A past medical history of cancer in the presence of any of these clinical presentation scenarios may warrant consultation with the client’s physician.

Guidelines for Immediate Medical Attention

• Presence of suspicious or aberrant lymph nodes, especially hard, fixed nodes in a client with a previous history of cancer

• Clinical presentation and history suggestive of an ectopic pregnancy

• Trauma followed by failure of symptoms to resolve with treatment; pain out of proportion to the injury (Fracture, acute compartment syndrome)

Clues to Screening Shoulder/Upper Extremity Pain

• See also Clues to Screening Chest, Breast, or Rib Pain in Chapter 17

• Simultaneous or alternating pain in other joints, especially in the presence of associated signs and symptoms such as easy fatigue, malaise, fever

• Urologic signs and symptoms

• Presence of hepatic symptoms, especially when accompanied by risk factors for jaundice

• Lack of improvement after treatment, including trigger point therapy

• Shoulder pain in a woman of childbearing age of unknown cause associated with missed menses (Rupture of ectopic pregnancy)

• Left shoulder pain within 24 hours of abdominal surgery, injury, or trauma (Kehr’s sign, ruptured spleen)

Past Medical History

• History of rheumatic disease

• History of diabetes mellitus (Adhesive capsulitis)

• “Frozen” shoulder of unknown cause in anyone with coronary artery disease, recent history of hospitalization in CCU or ICU/s/p CABG

• Recent history (past 1-3 months) of MI (CRPS; formerly RSD)

• History of cancer, especially breast or lung cancer (Metastasis)

• Recent history of pneumonia, recurrent upper respiratory infection, or influenza (Diaphragmatic pleurisy)

• History of endometriosis

Cancer

• Pectoralis major muscle spasm with no known cause; limited active shoulder flexion but with full passive shoulder motions and mobile scapula (Neoplasm)

• Presence of localized warmth felt over the scapular area (Neoplasm)

• Marked limitation of movement at the shoulder joint

• Severe muscular weakness and pain with resisted movements

Cardiac

• Exacerbation by exertion unrelated to shoulder movement (e.g., using only the lower extremities to climb stairs or ride a stationary bicycle)

• Excessive, unexplained coincident diaphoresis

• Shoulder pain relieved by leaning forward, kneeling with hands on the floor, sitting upright (Pericarditis)

• Shoulder pain accompanied by dyspnea, toothache, belching, nausea, or pressure behind the sternum (Angina)

• Shoulder pain relieved by nitroglycerin (men) or antacids/acid-relieving drugs (women) (Angina)

• Difference of 10 mm Hg or more in blood pressure in the affected arm compared to the uninvolved or a symptomatic arm (Dissecting aortic aneurysm, vascular component of TOS)

Pulmonary

• Presence of a pleuritic component such as a persistent, dry, hacking, or productive cough; blood-tinged sputum; chest pain; musculoskeletal symptoms are aggravated by respiratory movements

• Exacerbation by recumbency despite proper positioning of the arm in neutral alignment (Diaphragmatic or pulmonary component)

• Presence of associated signs and symptoms (e.g., tachypnea, dyspnea, wheezing, hyperventilation)

• Shoulder pain of unknown cause in older adults with accompanying signs of confusion or increased confusion (Pneumonia)

• Shoulder pain aggravated by the supine position may be an indication of mediastinal or pleural involvement. Shoulder or back pain alleviated by lying on the painful side may indicate autosplinting. (Pleural)

Renal

• Shoulder pain accompanied by elevation in temperature or changes in color, odor, or amount of urine (flow, frequency, nocturia); pain is not affected by movement or provocation tests.

• Shoulder pain accompanied by or alternating with flank pain, abdominal pain, or pelvic pain or, in men, testicular pain

Gastrointestinal

• Coincident nausea, vomiting, dysphagia; presence of other GI complaints such as anorexia, early satiety, epigastric pain or discomfort and fullness, melena

• Shoulder pain relieved by belching or antacids and made worse by eating

• History of previous ulcer, especially in association with the use of NSAIDs

Gynecologic

• Shoulder pain preceded or accompanied by one-sided lower abdominal or pelvic pain in a sexually active woman of reproductive age may be a symptom of ectopic pregnancy; there may be irregular bleeding or spotting after a light or late menstrual period.

• Shoulder pain with reports of lightheadedness, dizziness, or fainting in a sexually active woman of reproductive age (Ectopic pregnancy)

• Presence of endometrial cysts and/or scar tissue impinging diaphragm, nerve plexus, or the shoulder itself

Referred Shoulder and Upper Extremity Pain Patterns

image

Fig. 18-3 Composite picture of referred shoulder and upper extremity pain patterns. Not pictured: trigger point referred pain (see Fig. 17-7).

image Key Points to Remember

image Shoulder dysfunction can look like a true neuromuscular or musculoskeletal problem and still be viscerogenic or systemic in origin.

image Any adult over age 65 presenting with shoulder pain and/or dysfunction must be screened for systemic or viscerogenic origin of symptoms, even when there is a known (or attributed) cause or injury.

image Knowing the key red flags for cancer, vascular disease, pulmonary, GI, and gynecologic causes of shoulder pain and/or dysfunction will help the therapist screen quickly, efficiently, and accurately.

image Painless weakness of insidious onset is most likely a neurologic problem; painful, insidious weakness may be caused by cervical radiculopathy, chronic rotator cuff problems, tumors, or arthritis. A medical differential diagnosis is required.70,71

image As mentioned throughout this text, the therapist can collaborate with colleagues in asking questions and reviewing findings before making a medical referral. Perhaps someone else will see the answer or a solution to the client’s unusual presentation, or perhaps another opinion will confirm the findings and give you the confidence you need to guide your professional decision making.

image Postoperative infection of any kind may not appear with any clinical signs/symptoms for weeks or months, especially in a client who is on corticosteroids or immunocompromised.

image Consider unreported trauma or assault as a possible etiologic cause of shoulder pain.

image Palpate the diaphragm and assess breathing patterns; shoulder pain reproduced by diaphragmatic palpation may point to a primary diaphragmatic (muscular) problem.

Subjective Examination

Special Questions to Ask: Shoulder and Upper Extremity

General Systemic

• Does your pain ever wake you at night from a sound sleep? (Cancer)

• Can you find any way to relieve the pain and get back to sleep?

• If yes, how? (Cancer: Pain is usually intense and constant; nothing relieves it or if relief is obtained in any way, over time pain gets progressively worse)

• Since the beginning of your shoulder problem, have you had any unusual perspiration for no apparent reason, sweats, or fever?

• Have you had any unusual fatigue (more than usual with no change in lifestyle), joint pain in other joints, or general malaise? (Rheumatic disease)

• Have you sustained any injuries in the last week during a sports activity, car accident, etc?

• (Ruptured spleen associated with pain in the left shoulder: Positive Kehr’s sign)

• For the therapist: Has the client had a laparoscopy in the last 24 to 48 hours? (Left shoulder pain: Positive Kehr’s sign)

Cardiac

• Have you recently (ever) had a heart attack? (Referred pain via viscerosomatic zones, see explanation Chapter 3)

• Do you ever notice sweating, nausea, or chest pain when the pain in your shoulder occurs?

• Have you noticed your shoulder pain increasing with exertion that does not necessarily cause you to use your shoulder (e.g., climbing stairs, stationary bicycle)?

• Do(es) your mouth, jaw, or teeth ever hurt when your shoulder is bothering you? (Angina)

• For the client with known angina: Does your shoulder pain go away when you take nitroglycerin? (Ask about the effect of taking antacids/acid-relieving drugs for women.)

Pulmonary

• Have you been treated recently for a lung problem (or think you have any lung or respiratory problems)?

• Do you currently have a cough?

• If yes, is this a smoker’s cough?

• If no, how long has this been present?

• Is this a productive cough (can you bring up sputum), and is the sputum yellow, green, black, or tinged with blood?

• Does coughing bring on your shoulder pain (or make it worse)?

• Do you ever have shortness of breath, have trouble catching your breath, or feel breathless?

• Does your shoulder pain increase when you cough, laugh, or take a deep breath?

• Do you have any chest pain?

• What effect does lying down or resting have on your shoulder pain? (In the supine or recumbent position, a pulmonary problem may be made worse, whereas a musculoskeletal problem may be relieved; on the other hand, pulmonary pain may be relieved when the client lies on the affected side, which diminishes the movement of that side of the chest.)

Gastrointestinal

• Have you ever had an ulcer?

• If yes, when? Do you still have any pain from your ulcer?

• Have you noticed any association between when you eat and when your symptoms increase or decrease?

• Does eating relieve your pain? (Duodenal or pyloric ulcer)

• How soon is the pain relieved after eating?

• Does eating aggravate your pain? (Gastric ulcer, gallbladder inflammation)

• Does your pain occur 1 to 3 hours after eating or between meals? (Duodenal or pyloric ulcers, gallstones)

• For the client taking NSAIDs: Does your shoulder pain increase 2 to 4 hours after taking your NSAIDs? If the client does not know, ask him or her to pay attention for the next few days to the response of shoulder symptoms after taking the medication.

• Have you ever had gallstones?

• Do you have a feeling of fullness after only one or two bites of food? (Early satiety: stomach and duodenum or gallbladder)

• Have you had any nausea, vomiting, difficulty in swallowing, loss of appetite, or heartburn since the shoulder started bothering you?

Gynecologic

• Have you ever had a breast implant, mastectomy, or other breast surgery? (Altered lymph drainage, scar tissue)

• Have you ever had a tubal or ectopic pregnancy?

• Have you ever been diagnosed with endometriosis?

• Have you missed your last period? (Ectopic pregnancy, endometriosis; blood in the peritoneum irritates diaphragm causing referred pain)

• Are you having any spotting or irregular bleeding?

• Have you had any spontaneous or induced abortions recently? (Blood in peritoneum irritating diaphragm)

• Have you recently had a baby? (Excessive muscle tension during birth)

• If yes: Are you breastfeeding with the infant supported on pillows?

• Do you have a breast discharge, or have you had mastitis?

Urologic

• Have you had any recent kidney infections, tumors, or kidney stones? (Pressure from kidney on diaphragm referred to shoulder)

Trauma

• Have you been in a fight or been assaulted?

• Have you ever been pulled by the arm, pushed against the wall, or thrown by the arm?

If the answer is “Yes” and the history relates to the current episode of symptoms, then the therapist may need to conduct a more complete screening interview related to domestic violence and assault. Specific questions for this section have been discussed in Chapter 2; see also Appendix B-3.

Case Study

Steps in the Screening Process

If a client comes to you with shoulder pain with any of the red-flag histories and/or red-flag clinical findings to suggest screening, start by asking yourself these questions:

• Which shoulder is it?

• Which organs could it be? (Use Fig. 3-4 showing the viscera in relation to the diaphragm and Tables 18-1 and 18-2 to help you.)

• What are the associated signs and symptoms of that organ? Are any of these signs or symptoms present?

• What is the history? Does anything in the history correlate with the particular shoulder involved and/or with the associated signs and symptoms? Conduct a Review of Systems as discussed in Chapter 4 (see Box 4-19).

• Can you palpate it, make it better or worse, or reproduce it in any way?

Could It Be Cancer?

Remember, the therapist does not make a determination as to whether a client has cancer. The therapist’s assessment determines whether the client has a true neuromuscular or musculoskeletal problem that is within the scope of our practice. However, knowing red flags for the possibility of cancer helps the therapist know what questions to ask and what red flags to look for. Watch for:

• Previous history of cancer (any kind, but especially breast or lung cancer)

• Pectoralis major muscle spasm with no known cause, but full passive ROM and a mobile scapula. Be sure to assess for trigger points (TrPs). Reassess after TrP therapy.

• Were the symptoms alleviated? Did the movement pattern change?

• Conduct a neurologic screening exam.

• Shoulder flexion and abduction limited to 90 degrees with empty end feel.

• Presence of localized warmth over scapular area. Look for other trophic changes.

Could It Be Vascular?

Watch for

• Exacerbation by exertion unrelated to shoulder movements

• Does the shoulder pain and/or symptoms get worse when the client is just using the lower extremities? What is the effect of riding a stationary bike or climbing stairs without using the arms?

• Excessive, unexplained coincident diaphoresis (i.e., the client breaks out in a cold sweat just before or during an episode of shoulder pain; this may occur at rest but is more likely with mild physical activity).

• Shoulder pain relieved by leaning forward, kneeling with hands on the floor, sitting upright (pericarditis).

• Shoulder pain accompanied by dyspnea, temporomandibular joint (TMJ) pain, toothache, belching, nausea, or pressure behind the sternum.

• Bilateral shoulder pain that comes on after using the arms overhead for 3 to 5 minutes.

• Shoulder pain relieved by nitroglycerin (men) or antacids/acid-relieving drugs (women) [angina]

• Difference of 10 mm Hg or more (at rest) in diastolic blood pressure in the affected arm (aortic aneurysm; vascular component of thoracic outlet syndrome)

Remember to correlate any of these symptoms with:

• Client’s past medical history (e.g., personal and/or family history of heart disease)

• Age (over 50, especially postmenopausal women)

• Characteristics of pain pattern (see Table 6-5; these characteristics of cardiac related chest pain can also apply to cardiac-related shoulder pain)

Could It Be Pulmonary?

• Ask about the presence of pleuritic component

• Persistent cough (dry or productive)

• Blood-tinged sputum; rust, green, or yellow exudate

• Chest pain

• Musculoskeletal symptoms are aggravated by respiratory movements; ask the client to take a deep breath. Does this reproduce or increase the pain/symptoms?

• Watch for the exacerbation of symptoms by recumbence even with proper positioning of the arm. Lying down in the supine position can put the shoulder in a position of slight extension.

• This can put pressure on soft tissue structures in and around the shoulder, causing pain in the presence of a true neuromuscular or musculoskeletal problem.

• For this reason, when assessing the effect of recumbence, make sure the shoulder is in a neutral position. You may have to support the upper arm with a towel roll under the elbow and/or put a pillow on the client’s abdomen to give the forearms a place to rest.

• Pain is relieved or made better by sidelying on the involved side. This is called autosplinting.

• Pressure on the ribcage prevents respiratory movement on that side thereby reducing symptoms induced by respiratory movements. This is quite the opposite of a musculoskeletal or neuromuscular cause of shoulder pain; the client often cannot lie on the involved side without increased pain.

• Ask about the presence of associated signs and symptoms. Remember to ask our final question:

• Are there any symptoms of any kind anywhere else in your body?

In the older adult, listen for a self-report or family report of unknown cause of shoulder pain/dysfunction and/or any signs of confusion (confusion or increased confusion is a common first symptom of pneumonia in the older adult).

Could It Be Gastrointestinal or Hepatic?

• Ask about a history of chronic (more than 6 months) NSAID use and history of previous ulcer, especially in association with NSAID use. This is the most common cause of medication-induced shoulder pain in all ages, but especially adults over 65.

• History of other GI disease that can refer pain to the shoulder such as:

• Gallbladder

• Acute pancreatitis

• Reflex esophagitis

• Watch for coincident (or alternating) nausea, vomiting, dysphagia, anorexia, early satiety, or other GI symptoms. Clients often think they have two separate problems. The client may not think the therapist treating the shoulder needs or wants to know about their GI problems. The therapist who is not trained to screen for medical disease may not think to ask.

• Ask if shoulder pain is relieved by belching or antacids. This could signal an underlying GI problem or for women, cardiac ischemia.

• Look for shoulder pain that is changed by eating (better or worse within 30 minutes or worse 1 to 3 hours after eating).

The therapist does not have to identify the specific area of the GI tract that is involved or the specific pathology present. It is important to know that true NMS shoulder pain is not relieved or exacerbated by eating.

If there is a peptic ulcer in the upper GI tract causing referred pain to the shoulder, there is often a history of NSAID use. This client will have that red flag history along with shoulder pain that gets better after eating. There may also be other GI symptoms present such as nausea, loss of appetite, or melena from oxidized blood in the upper GI tract.

If there is liver impairment as well, there can be symptoms of carpal tunnel syndrome (CTS). For a list of possible NMS and systemic causes of CTS, see Table 11-2. Again, CTS in the presence of any of these systemic conditions should be assessed carefully. Likewise, CTS may be the first symptom of some of these pathologies.

The client with shoulder pain (GI bleed) and symptoms of CTS (liver impairment) may demonstrate other signs of liver impairment such as:

• Liver flap (asterixis)

• Liver palms (palmar erythema)

• Nail bed changes (white nails of Terry)

• Spider angiomas (over the abdomen)

These tests along with photos and illustrations are discussed in detail in Chapter 9.

Could It Be Breast Pathology?

Remember that men can have breast diseases too, although not as often as women. Red-flag clinical presentation and associated signs and symptoms of breast disease referred to the shoulder may include:

• Jarring or squeezing the breast refers pain to the shoulder

• Resisted shoulder motions do not reproduce shoulder pain but do cause breast pain or discomfort

• Obvious change in breast tissue (e.g., lump[s], dimpling or peau d’orange, distended veins, nipple discharge or ulceration, erythema, change in size or shape of the breast)

• Suspicious or aberrant axillary or supraclavicular lymph nodes

Practice Questions

1. A 66-year-old woman has been referred to you by her physiatrist for preprosthetic training after an above-knee amputation. Her past medical history is significant for chronic diabetes mellitus (insulin dependent), coronary artery disease with recent angioplasty and stent placement, and peripheral vascular disease. During the physical therapy evaluation, the client experienced anterior neck pain radiating down the left arm. Name (and/or describe) three tests you can do to differentiate a musculoskeletal cause from a cardiac cause of shoulder pain.

2. Which of the following would be useful information when evaluating a 57-year-old woman with shoulder pain?

a. Influence of antacids on symptoms

b. History of chronic NSAID use

c. Effect of food on symptoms

d. All of the above

3. Referred pain patterns associated with impairment of the spleen can produce musculoskeletal symptoms in:

a. The left shoulder

b. The right shoulder

c. The mid- or upper back, scapular, and right shoulder areas

d. The thorax, scapulae, right or left shoulder

4. Referred pain patterns associated with hepatic and biliary pathology can produce musculoskeletal symptoms in:

a. The left shoulder

b. The right shoulder

c. The mid or upper back, scapular, and right shoulder areas

d. The thorax, scapulae, right or left shoulder

5. The most common sites of referred pain from systemic diseases are:

a. Neck and hip

b. Shoulder and back

c. Chest and back

d. None of the above

6. A 28-year-old mechanic reports bilateral shoulder pain (right more than left) whenever he has to work on a car on a lift overhead. It goes away as soon as he puts his arms down. Sometimes, he has numbness and tingling in his right elbow going down the inside of his forearm to his thumb. The most likely explanation for this pattern of symptoms is:

a. Angina

b. Myocardial ischemia

c. Thoracic outlet syndrome

d. Peptic ulcer

7. A client reports shoulder and upper trapezius pain on the right that increases with deep breathing. How can you tell if this results from a pulmonary or a musculoskeletal cause?

a. Symptoms get worse when lying supine but better when right sidelying when it is pulmonary

b. Symptoms get worse when lying supine but better when right sidelying when it is musculoskeletal

8. Organ systems that can cause simultaneous bilateral shoulder pain include:

a. Spleen

b. Heart

c. Gallbladder

d. None of the above

9. A 23-year-old woman was a walk-in to your clinic with sudden onset of left shoulder pain. She denies any history of trauma and has only a past history of a ruptured appendix three years ago. She is not having any abdominal pain or pain anywhere else in her body. How do you know if she is at risk for ectopic pregnancy?

a. She is sexually active, and her period is late.

b. She has a history of uterine cancer.

c. She has a history of peptic ulcer.

d. None of the above.

10. The most significant red flag for shoulder pain secondary to cancer is:

a. Previous history of coronary artery disease

b. Subscapularis trigger point alleviated with trigger point therapy

c. Negative neurologic screening exam

d. Previous history of breast or lung cancer

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