Pediatric Posterior Shoulder Dislocation

• Etiology: often related to seizure / electric shock
• Imaging: document dislocation, look for reverse Hill Sachs deformity and other fracture or loose body
• Complications: Hills Sachs deformity is anteromedial compression fracture secondary to impaction of humeral head against posterosuperior glenoid which affects top 2 cm of humeral head, reverse Bankart lesion – impaction injury of posterior / superior glenoid
• Clinical: posterior shoulder dislocation seen 3% of time

Radiology Cases of Posterior Shoulder Dislocation