title: The posterior mechanism of acute anterior shoulder dislocations.
abstract: A tear of the rotator cuff often accompanies primary acute anterior dislocations of the shoulder in older patients. These structures, weakened by wear or degeneration, tear when the shoulder dislocates, permitting the humerus to hinge on intact anterior structures. Three typical cases illustrate the posterior structural reactions to acute anterior dislocation.
mesh_terms: D000208:Acute Disease; D000367:Age Factors; D000368:Aged; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D012783:Shoulder Dislocation / Q000209:etiology* / Q000601:surgery