title: Posterior dislocation of the acromio-clavicular joint: a rare or an easily overlooked lesion?
abstract: The authors describe a case of posterior acromio-clavicular dislocation treated operatively. The etiology and pathological anatomy are discussed and the importance of an axial radiographic projection is emphasized. Radiographic comparison with the normal shoulder is helpful in leading to a correct diagnosis.
mesh_terms: D000173:Acromioclavicular Joint / Q000000981:diagnostic imaging / Q000293:injuries*; D000328:Adult; D005593:Fracture Fixation, Internal; D006801:Humans; D004204:Joint Dislocations / Q000000981:diagnostic imaging* / Q000209:etiology / Q000473:pathology; D008297:Male; D011379:Prognosis; D011859:Radiography