Rotator Cuff Tendinopathy
Upper LimbOverview
Rotator cuff tendinopathy is a degenerative condition affecting one or more of the four rotator cuff tendons (supraspinatus, infraspinatus, teres minor, subscapularis), characterized by pain, weakness, and functional limitation of the shoulder. It represents a continuum from reactive tendinopathy through to tendon degeneration and partial or full-thickness tears. The condition is common in both overhead athletes and sedentary individuals with poor posture or scapular dysfunction.
Pathophysiology
Rotator cuff tendinopathy develops through repetitive microtrauma, overload, or cumulative stress that exceeds the tissue's capacity to adapt and repair. Intrinsic factors include age-related collagen cross-linking, reduced vascularity at the critical zone (proximal supraspinatus), and inherent weakness of the tendons. Extrinsic factors include subacromial impingement from hypertrophic bone, subacromial bursa inflammation, scapular dyskinesis, and thoracic spine stiffness limiting glenohumeral mobility. The pathological cascade involves initial inflammation and reactive changes, progressing to tendon fiber disorganization, calcification, and eventual degeneration with potential partial or complete rupture. Altered neuromuscular control and motor patterns perpetuate the condition through abnormal load distribution.
Typical Presentation
Site
Anterolateral shoulder, often with referral to lateral arm. Pain typically localized to subacromial space; may involve infraspinatus region (posterior shoulder). Symptoms may be unilateral or bilateral.
Quality
Dull, aching pain with superimposed sharp pain on provocative movements. Patients often report clicking, catching, or grinding sensations. Night pain with lying on affected side is characteristic.
Intensity
Mild to moderate in early stages (3-5/10), progressing to moderate-severe (6-8/10) with functional limitation. Pain intensity varies with activity level and loading patterns.
Aggravating
Overhead reaching activities, throwing, swimming, pushing movements, lying on affected shoulder, repetitive gripping, prolonged static postures with forward shoulder position, activities requiring sustained abduction or external rotation
Relieving
Rest from provocative activities, anti-inflammatory modalities (ice, NSAIDs), pendulum exercises, scapular support, postural correction, specific rotator cuff strengthening exercises
Associated
Weakness in abduction and external rotation, reduced shoulder range of motion (especially internal rotation), scapular winging or dyskinesis, neck stiffness, thoracic spine restriction, postural changes (forward head posture, rounded shoulders), sleep disturbance, morning stiffness
Orthopaedic Tests
Neer Impingement Test
Procedure
Patient seated or standing. Stabilise the scapula with one hand and, with the arm internally rotated (thumb down), passively raise it forwards to full flexion.
Positive Finding
Reproduction of the familiar anterior or lateral shoulder pain near the end of range.
Sensitivity / Specificity
Reference: Hegedus EJ et al., Br J Sports Med 2012; PMID 22773322
Interpretation
Supports a subacromial pain source, which includes rotator cuff tendinopathy. It is positive in many shoulder problems, so do not use it alone. Neer sign pooled figures (72%/60%) are from Hegedus (2012) meta-analysis; original description Neer 1972.
Hawkins-Kennedy Impingement Test
Procedure
Patient seated or standing. Raise the arm to 90° of forward flexion with the elbow bent to 90°, support the elbow, then turn the forearm down to internally rotate the shoulder.
Positive Finding
Reproduction of the familiar anterolateral shoulder pain.
Related reference: Hegedus EJ et al., Br J Sports Med 2012; PMID 22773322
Interpretation
Supports a subacromial pain source but does not identify the structure. Combine it with the loading tests (resisted abduction and external rotation) and the history. Pooled sensitivity/specificity for the Hawkins–Kennedy test vary widely across studies (Hegedus 2012); no single confirmed pair is shown. Original description: Hawkins & Kennedy 1980 (Am J Sports Med, not JBJS).
Empty Can Test (Jobe's Test)
Procedure
Patient standing. Arms elevated to 90° in the scapular plane, elbows straight, thumbs pointing down. Apply a downward force at the forearms while the patient resists; compare sides.
Positive Finding
Reproduction of the familiar shoulder pain, or weakness compared with the other side.
Related reference: Itoi E et al., Am J Sports Med 1999; PMID 9934421
Interpretation
Pain on loading fits rotator cuff tendinopathy. Clear weakness, especially after an injury, should raise concern for a tear and may need imaging. Itoi (1999, Am J Sports Med — not JSES) compared the empty-can and full-can tests by diagnostic accuracy (~70–75%), not a sensitivity/specificity pair.
External Rotation Lag Sign
Procedure
Patient seated with the elbow bent to 90°. Take the arm into about 20° of elevation in the scapular plane and near-full external rotation, supporting the elbow. Ask the patient to hold that position as you let go of the wrist.
Positive Finding
The forearm drifts back towards the body (a lag) because the patient cannot hold the rotated position.
Related reference: Hertel R et al., J Shoulder Elbow Surg 1996; PMID 8872929
Interpretation
A lag means the posterior cuff (infraspinatus and supraspinatus) cannot hold the position, which points to a full-thickness tear rather than tendinopathy. A positive sign warrants imaging and referral. Hertel (1996, J Shoulder Elbow Surg — not JBJS) described the external rotation lag sign as highly specific for rotator cuff rupture; no single confirmed sensitivity/specificity pair is shown.
Lift-off Test (Gerber's Test)
Procedure
Patient standing. Place the back of the hand on the lower back, then ask the patient to lift the hand away from the back. If they can, add gentle resistance.
Positive Finding
Unable to lift the hand off the back, or clear weakness compared with the other side.
Related reference: Gerber C & Krushell RJ, J Bone Joint Surg Br 1991; PMID 1670434
Interpretation
Tests subscapularis. Inability to lift off suggests a subscapularis tear. If the patient cannot reach behind the back, use the belly-press test instead. Original description Gerber & Krushell 1991 (JBJS Br — the previously cited "Gerber 1992" year was incorrect); no clean diagnostic-accuracy pair.
Painful Arc Test
Procedure
Ask the patient to raise the arm slowly out to the side as far as possible and lower it again. Note where pain appears and disappears.
Positive Finding
Pain in the middle of the range (roughly 60–120° of elevation) that eases above and below it.
Related reference: Park HB et al., J Bone Joint Surg Am 2005; PMID 15995110
Interpretation
Fits a subacromial pain source such as rotator cuff tendinopathy or bursitis; it does not separate the two. Park (2005) reported the painful arc at ~74% sensitivity, but a matched specificity varied by severity; shown Not verified pending a single confirmed pair.
⚠ Red Flags
- •Signs of complete rotator cuff rupture with acute trauma and inability to initiate abduction (drop-arm test positive)
- •Acute severe pain with significant trauma suggesting acute tear rather than tendinopathy
- •Progressive neurological deficit, particularly radiculopathy pattern suggesting cervical spine involvement
- •Signs of infection: fever, systemic illness, localized heat and swelling
- •Symptoms suggesting acromioclavicular osteoarthritis with osteophyte-induced subacromial impingement and recurrent symptoms unresponsive to conservative care
- •History of malignancy with shoulder pain suggesting metastatic disease
- •Acute shoulder dislocation or subluxation with ongoing instability
- •Chest pain, dyspnea, or systemic symptoms suggesting referred cardiac or pulmonary pathology
⚡ Yellow Flags
- •Anxiety or fear-avoidance behaviors leading to excessive protective guarding and reduced activity participation
- •Catastrophizing about shoulder pain or excessive worry about permanent damage or disability
- •Poor self-efficacy and belief that recovery is not possible with conservative management
- •Secondary gain factors, including pending litigation or workers compensation claims affecting motivation to recover
- •Psychosocial distress, depression, or sleep disturbance exacerbating pain perception and limiting rehabilitation engagement
- •Occupational or sporting demands exceeding realistic capacity during recovery period, creating ongoing overload
- •Poor compliance with rehabilitation exercises and reluctance to modify provocative activities
- •Belief that pain indicates tissue damage requiring complete rest rather than understanding tendinopathy continuum
Osteopathic Techniques
Region
Glenohumeral joint and rotator cuff musculature
Technique
Rationale
Soft tissue mobilization to the supraspinatus, infraspinatus, teres minor, and subscapularis reduces muscle tension, improves local blood flow, and facilitates neuromuscular re-education. Gentle sustained pressure and stripping techniques address trigger points and myofascial restrictions that contribute to altered scapulohumeral rhythm and compensatory patterns.
Region
Scapulothoracic articulation and associated musculature
Technique
Rationale
Gentle articulation and mobilization of the scapula improves scapulothoracic mechanics and reduces dyskinesis. Rhythmic passive and active-assisted movements restore normal scapular positioning during glenohumeral motion, reducing subacromial impingement and distributing load more efficiently across the rotator cuff.
Region
Cervical spine (C4-C5) and lower cervical musculature
Technique
Rationale
Muscle energy techniques applied to upper trapezius, levator scapulae, and sternocleidomastoid address postural dysfunction and forward head posture that compromises shoulder mechanics. Restoring cervical mobility and reducing muscular tension improves scapular positioning and reduces compensatory stress on rotator cuff tendons.
Region
Glenohumeral joint capsule and surrounding tissues
Technique
Rationale
Functional technique applied to the shoulder in pain-free positions facilitates neuromuscular re-education and normalizes proprioceptive feedback. Gentle positioning that reduces afferent nociception allows the nervous system to recalibrate motor control patterns without triggering protective muscle guarding.
Region
Subacromial bursa and superior shoulder girdle
Technique
Rationale
Lymphatic drainage techniques reduce local inflammatory exudate and edema in the subacromial space, decreasing mechanical irritation of tendons and bursa. Improved lymphatic return supports tissue healing and reduces pain-driven protective reflexes that perpetuate dysfunction.
Rehabilitation Exercises
Pendulum Exercises
Sleeper Stretch (Internal Rotation)
Cross-Body Shoulder Stretch
Thoracic Spine Extension Mobilization
Isometric External Rotation (Neutral Position)
Side-Lying External Rotation with Light Weight
Prone Horizontal Abduction (Prone Y)
Prone Shoulder I-Y-T Series
Scapular Push-Up Plus (Wall or Quadruped)
Quadruped Shoulder Stability Hold
Half-Kneeling Pallof Press
Prone Shoulder External Rotation at 90/90
Referral Criteria
- •Suspicion of complete rotator cuff tear based on positive drop-arm test, weakness out of proportion to pain, or imaging findings of full-thickness tear requiring surgical consultation
- •Failure to improve with conservative management after 6-8 weeks of consistent treatment and exercise compliance, suggesting need for imaging (MRI/ultrasound) and specialist orthopedic assessment
- •Acute traumatic injury with severe pain and significant functional loss requiring emergency assessment for acute tear
- •Neurological deficit or radicular symptoms suggesting cervical spine involvement or nerve compression requiring specialist evaluation
- •Suspected acromioclavicular osteoarthritis with osteophyte causing recurrent subacromial impingement unresponsive to conservative care
- •Signs of adhesive capsulitis developing (progressive stiffness exceeding pain limitation) requiring specialist intervention
- •Systemic symptoms, fever, or signs of infection suggesting septic arthritis requiring urgent medical investigation
- •Persistent night pain significantly disrupting sleep and function unresponsive to conservative measures, suggesting need for orthopedic assessment
- •Patient demonstrating significant psychosocial barriers to recovery (high anxiety, catastrophizing, depression) requiring mental health professional involvement
- •Occupational or sporting demands requiring specialized rehabilitation planning with sports medicine physician or athletic trainer
- •Suspected underlying pathology (malignancy, cardiac referral, systemic disease) based on red flag symptoms requiring appropriate specialist referral