1039. Mechanisms that cause posterior shoulder dislocation, s/sx, common misdx, AP xray signs September 19th, 2009 by reuben in shoulder / humerus / clavicle Back Top Tags: card 1038. Anterior shoulder dislocation: Postreduction care / Who to refer? // Anterior shoulder subluxation: s/sx, dx, rx 1040. Inferior glenohumeral dislocation: presentation, Rx, complications // What is the subacromial space? What is in the subacromial space? Impingement is centered on what? What is the subacromial syndrome cycle? Leave a Reply Cancel reply Please post any discussion to the emupdates Reddit page.