Treatment of Adhesive Capsulitis (Frozen Shoulder)
Start with a combination of intra-articular corticosteroid injection and physical therapy as first-line treatment for adhesive capsulitis, as this provides the most rapid and effective pain relief and functional improvement, particularly in the early freezing phase. 1, 2, 3
Initial Conservative Management
Corticosteroid Injection
- Intra-articular corticosteroid injection is the most effective initial treatment, providing superior short-term pain relief and functional improvement compared to physical therapy alone 4, 3
- Low-dose steroids (equivalent to 20-40mg triamcinolone) are as effective as high-dose steroids with fewer side effects, so start with the lower dose 1
- Glucocorticoid injection at 7 weeks shows mean pain reduction of 58 points on a 100-point scale versus 32 points with manual therapy/exercise alone (26% absolute difference) 4
- Patient-reported treatment success is 77% with injection versus 46% with manual therapy/exercise alone 4
Physical Therapy
- Combine corticosteroid injection with supervised physical therapy rather than using either alone 2, 4, 5
- Physical therapy should include both range of motion exercises and strengthening exercises 6, 5
- Supervised exercises (land or water-based, individual or group) are more effective than home exercises alone 6
- Apply local heat (paraffin wax, hot packs) before exercise sessions to enhance effectiveness 6
Oral Medications
- NSAIDs can be used for pain control but are not disease-modifying 2, 3
- Short-term oral corticosteroids (not intra-articular) may provide benefit, though evidence is limited 2
- Avoid long-term oral analgesics; reserve opioids only for severe refractory pain 2
Stage-Specific Considerations
Early Stage (Freezing Phase)
- Intervene aggressively before complete range of motion loss occurs 7
- Ultrasound-guided glenohumeral hydrodistension combined with targeted exercise shows significant improvement in pain, disability, and range of motion when performed in stage 1 versus stage 2 disease 7
- Early diagnosis and treatment prevent progression to complete motion restriction 7, 3
Advanced Stage (Frozen Phase)
- Continue physical therapy even with severe stiffness 5, 8
- Consider repeat corticosteroid injections if initial injection provided temporary benefit 2
- Suprascapular nerve block can be effective for pain reduction to facilitate rehabilitation 8
Surgical Intervention
Indications for Surgery
- Reserve surgery for patients with minimal improvement after 6-12 weeks of aggressive conservative treatment 2, 3
- Persistent severe pain and functional limitation despite optimal nonsurgical management 3, 5
Surgical Options
- Manipulation under anesthesia is one option but carries risk of fracture 2
- Arthroscopic capsular release is preferred over manipulation as it allows controlled release with direct visualization 2, 8
- Surgery requires comprehensive post-operative rehabilitation to prevent recurrence of stiffness 8
Treatment Pitfalls to Avoid
- Do not assume the condition is self-limiting and will fully resolve without treatment - recent evidence shows many patients have persistent functional limitations if untreated 2, 4, 3
- Do not use physical therapy alone as initial treatment when corticosteroid injection is available, as injection provides superior early results 4
- Do not use high-dose steroids when low-dose is equally effective with fewer adverse effects 1
- Do not delay intervention until stage 2 (frozen phase), as early treatment in stage 1 (freezing phase) yields better outcomes 7
- Avoid prolonged conservative management beyond 6-12 weeks if there is no meaningful improvement 2, 3
Adjunctive Treatments
- Hydrodilatation (arthrographic joint distension with glucocorticoid and saline) may provide benefit similar to corticosteroid injection alone 2, 4
- Acupuncture may be considered as an adjunct but should not replace proven treatments 2
- Ultrasound therapy has limited evidence and is not recommended as primary treatment 4