Synopsis
Recognise rotator-cuff-related shoulder pain, separate pain inhibition from a clinically important tear, use imaging only for a decision, and deliver progressive rehabilitation while escalating traumatic weakness and other dangerous mimics promptly.
- Cuff-related pain usually causes lateral upper-arm pain with overhead reach or lying on that side; active movement is painful or weak while passive glenohumeral range remains comparatively preserved.
- Compare active and passive elevation, external rotation and internal rotation before provocative tests; no single painful-arc, Hawkins or empty-can manoeuvre proves one anatomical lesion.
- True weakness that persists after analgesia, external-rotation lag, drop-arm behaviour or immediate loss after trauma raises the likelihood of a large or full-thickness tear.
- First-line investigation for an uncomplicated atraumatic presentation is a structured clinical assessment; routine ultrasound or MRI does not improve initial conservative care.
- Use radiographs after trauma or with marked stiffness, and request ultrasound or MRI only when the answer will alter referral, repair planning or evaluation of an alternative diagnosis.
- First-line management is explanation, short-term modification of provocative load and a progressive exercise programme for cuff, scapular and functional capacity, usually reviewed over at least six to twelve weeks.
- A single targeted subacromial corticosteroid injection may create short-term analgesia for rehabilitation, but it is not tendon repair and should not become an automatic repeated series.
- Expedite shoulder review after acute traumatic functional loss; consider elective referral for persistent disability, objective weakness or diagnostic uncertainty after a well-supported rehabilitation course.
Key red flags
A sudden injury followed by inability to actively raise the arm despite preserved passive elevation suggests an acute substantial cuff tear and warrants expedited specialist assessment.
A hot swollen shoulder, fever, bacteraemic risk or severe pain with every small passive movement requires an emergency septic-joint pathway rather than injection.
Visible deformity, absent pulse, cool hand, delayed refill or new motor or sensory loss requires immediate fracture-dislocation and vascular assessment.
Unremitting night pain, weight loss, a mass, previous malignancy or pain not reproduced by shoulder movement requires investigation for tumour or referred disease.
Exertional chest pressure, breathlessness or diaphoresis must redirect assessment beyond the shoulder.
Investigation priorities
Distinguish cuff-related pain from a stiff joint, acute tear, cervical lesion and urgent referred cause.
Management branches
Atraumatic cuff-pattern pain is present without substantial weakness, passive restriction or systemic red flags.
- Explain the load-capacity model and identify work, sleep and activity goals before attaching significance to imaging findings.
- Modify the most provocative load temporarily while maintaining general use and beginning progressive cuff and scapular exercise.
- Offer a short suitable analgesic strategy and provide return advice for fever, deformity, neurological change or sudden weakness.
- Review a measurable functional outcome after six to twelve weeks and check technique, adherence and competing diagnoses before escalation.