Shoulder dislocation

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Background

Left shoulder and acromioclavicular joints with ligaments.
Shoulder anatomy, anterior.
Shoulder anatomy, posterior.
  • Humerus separates from the scapula at the glenohumeral joint
  • Partial dislocation of the shoulder is referred to as subluxation
  • Dislocation duration inversely correlated with likelihood of successful ED reduction

Shoulder dislocation types

Differential Diagnosis

Shoulder and Upper Arm Diagnoses

Traumatic/Acute:

Nontraumatic/Chronic:

Refered pain & non-orthopedic causes:

Evaluation

Workup

  • Plain film X-ray
    • Include anteroposterior, scapular Y, and axillary views
    • Associated fractures include:
      • Hills-Sachs: cortical depression in the humeral head
      • Bankart: glenoid labrum disruption with bony avulsion
      • Humeral greater tuberosity fracture
  • Consider joint ultrasound

Diagnosis

Management

Reduction

Disposition

  • Uncomplicated dislocation can be discharged after reduction

Prognosis

  • Recurrence rate around 27% if older than 30 years and 72% is younger than 23 years[2]

See Also

External Links

Video

References

  1. Intra-articular lignocaine versus intravenous analgesia with or without sedation for manual reduction of acute anterior shoulder dislocation in adults (Review) Cochrane Database Syst Rev. 2011 Apr 13;(4):CD004919 full text
  2. Watson S, Allen B, Grant JA. A Clinical Review of Return-to-Play Considerations After Anterior Shoulder Dislocation. Sports Health. 2016; 8(4):336-341.