Management of Acute Shoulder Dislocation
For acute shoulder dislocation, obtain pre-reduction radiographs (AP in internal/external rotation plus axillary or scapula-Y view), perform prompt closed reduction using a biomechanical technique without analgesics when possible, confirm successful reduction with post-reduction imaging, immobilize for 1 week maximum, then initiate early physical therapy focusing on proprioception and coordination. 1
Immediate Diagnostic Imaging
Radiographs are mandatory before attempting reduction 2. The standard trauma series must include:
- AP views in both internal and external rotation
- Axillary or scapula-Y view (critical—dislocations are frequently misclassified on AP views alone)
- Consider Stryker notch view for Hill-Sachs lesions 2
Point-of-care ultrasound (POCUS) demonstrates diagnostic accuracy comparable to radiography and can expedite diagnosis in the emergency setting 3. However, traditional radiography remains the gold standard for identifying associated fractures and guiding reduction strategy.
Reduction Technique
Favor biomechanical reduction methods without analgesics initially 1. The evidence shows:
- Multiple reduction techniques (FARES, Cunningham, Stimson, scapular manipulation) have equivalent success rates 3
- FARES method demonstrates superior pain management compared to other techniques 3
- Reduction should be performed promptly after diagnostic confirmation 1
Pain Management During Reduction
If initial reduction attempts fail:
- Intra-articular anesthesia (IAA) is as effective as intravenous sedation with fewer adverse events and shorter ED stays 3
- Procedural sedation and analgesia are recommended for failed initial attempts 1
- Avoid excessive force during reduction maneuvers 4
Post-Reduction Protocol
Mandatory post-reduction imaging to confirm successful reduction and rule out complications 1. Then:
- Immobilize for 1 week only (relative immobilization, not strict) 1
- Avoid excessive immobilization periods 4
Rehabilitation Protocol
Following the acute phase, implement a 5-phase structured rehabilitation program 5:
- Acute Protection Phase (0-3 weeks): Education, sling weaning by 1 week
- Movement and Early Strengthening (3-6 weeks): Initiate through-range resisted exercises
- Progressive Strengthening (6-12 weeks): Advance resistance training
- Return to Sport (>12 weeks): Criteria-based progression
- High-Level Function: Sport-specific training
Target early restoration of function, coordination, and proprioception rather than prolonged immobilization 1, 5.
Surgical Consideration Algorithm
Discuss surgical stabilization if the patient meets these criteria 1, 3:
- Age < 40 years (strongest predictor)
- Male sex
- Contact sport athletes
- Significant bone loss (glenoid or humeral head)
Surgical Bankart repair consistently demonstrates reduced redislocation rates compared to conservative management, particularly in younger patients 3. The choice between arthroscopic versus open repair shows no significant difference in redislocation rates 6.
External vs. Internal Rotation Immobilization
If immobilization extends beyond 1 week (not recommended per current guidelines), external rotation immobilization is more effective than internal rotation in preventing redislocations 3.
Critical Pitfalls to Avoid
- Missing the diagnosis on AP views alone—always obtain axillary or scapula-Y views 2
- Prolonged immobilization—limit to 1 week maximum 1
- Delaying reduction—perform promptly after diagnostic confirmation 1
- Overlooking nerve injury—axillary nerve is most commonly affected; document neurovascular status pre- and post-reduction 3
- Failing to obtain post-reduction imaging—mandatory to confirm reduction and identify complications 1
Follow-Up
Refer all patients to orthopedic surgery for follow-up to assess for recurrent instability risk and discuss potential surgical stabilization, particularly in high-risk populations 3. The multidisciplinary approach with structured rehabilitation pathways improves quality of care and reduces redislocation rates 1.