Treatment of Overhead Shoulder Pain
Start with range of motion exercises focusing on external rotation and abduction combined with NSAIDs, while strictly avoiding overhead pulley exercises that can worsen pain. 1
Initial Assessment Priorities
Evaluate the following specific parameters to guide treatment:
- Muscle tone, strength, and soft tissue integrity 1
- Joint alignment of the shoulder girdle and pain levels 1
- Potential causes: adhesive capsulitis, rotator cuff pathology, bursitis/tendonitis, or complex regional pain syndrome 1
- Radiographic evaluation should include anteroposterior views in internal and external rotation plus an axillary or scapula-Y view 1
First-Line Treatment Algorithm
Exercise Therapy (Primary Intervention)
- Begin range of motion exercises immediately, emphasizing external rotation and abduction to prevent frozen shoulder and shoulder-hand pain syndrome 1, 2
- Gradually increase active range of motion while simultaneously restoring alignment and strengthening weak shoulder girdle muscles 1, 2
- Critical pitfall to avoid: Never use overhead pulley exercises as they encourage uncontrolled abduction and increase pain 1, 3
- Exercise is the most effective intervention for subacromial shoulder pain based on current evidence 4
Pharmacological Management
- NSAIDs (ibuprofen or naproxen) as first-line medication for pain relief 1, 5, 6
- For naproxen: start with 500 mg twice daily, adjustable based on response; use lowest effective dose for shortest duration 5
- Acetaminophen can be used if NSAIDs are contraindicated 2, 3
- Consider lower doses in elderly patients due to increased unbound plasma fraction 5
Adjunctive Modalities
- Ice, heat, and soft tissue massage to complement exercise therapy 1
Second-Line Interventions (When First-Line Fails)
Corticosteroid Injections
- Subacromial corticosteroid injections when pain relates to rotator cuff or bursa inflammation 1, 3
- Intra-articular corticosteroid injections for patients with inflammation or subacromial region injury 1, 3
Additional Interventions
- Shoulder strapping or slings for support, particularly with subluxation present 1
- Neuromuscular electrical stimulation (NMES) may be considered as adjunctive therapy 1, 2
Advanced Interventions (Refractory Cases)
For Spasticity-Related Pain
- Botulinum toxin injections into subscapularis and pectoralis muscles when shoulder pain relates to spasticity 1, 2, 3
For Persistent Pain
- Suprascapular nerve blocks as adjunctive treatment for persistent shoulder pain 1
Special Clinical Scenarios
Complex Regional Pain Syndrome Prevention
- Active, active-assisted, or passive range of motion exercises must be performed to prevent CRPS development 2, 3
- If CRPS develops: oral corticosteroids 30-50 mg daily for 3-5 days, then taper over 1-2 weeks to reduce swelling and pain 2, 3
- Diagnosis requires: pain/tenderness of metacarpophalangeal and proximal interphalangeal joints, dorsal finger edema, trophic skin changes, hyperesthesia, and limited range of motion 2, 3
Critical Pitfalls and Caveats
- Untreated shoulder pain delays rehabilitation and can mask motor function improvement 2, 3
- Overhead pulley exercises are contraindicated as they encourage uncontrolled abduction and worsen pain 1, 3
- Shoulder pain contributes to depression, insomnia, and reduced quality of life if inadequately treated 2, 3
- NSAIDs should be used at the lowest effective dose for the shortest duration due to cardiovascular and gastrointestinal risks 5
- Avoid NSAIDs in patients with moderate to severe renal impairment (creatinine clearance <30 mL/min) 5