Shoulder dislocation

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shoulder dislocation

(Science: radiology) Anterior (subcoracoid), humerus may lead to beneath coracoid process, anterior to glenoid, most frequent site and type of dislocation of any joint, easily detected, repeated dislocation most likely to be Hill-Sachs deformity and/or Bankhart deformity, posterior, 2 - 4% of shoulder dislocations, 50% due to seizures; trauma, electrical shock, often missed on AP view: use Y or axillary view, rim sign in acute dislocation, increased glenohumeral space (normal 6 mm may lead to widened to 14 mm), with or without compression fracture of anterior surface of humeral head, 20% most likely to be associated fracture