Atypical Subglenoid Inferior Glenohumeral Dislocation Clinically Mimicking Anterior Dislocation

Abstract

Inferior shoulder dislocation is a rare form of shoulder dislocation. A subglenoid subtype of an inferior glenohumeral dislocation is described which clinically mimicked anterior dislocation, as the pathognomonic upright arm posture was conspicuous by its absence. An awareness of associated potential axillary artery injury, brachial plexus complications and rotator cuff tears is important in this rare entity and should be excluded with a high index of suspicion.