Figure 8
From: Unusual inferior dislocation of shoulder: reduction by two-step maneuver: a case report
Figure showing mechanism of true inferior dislocation of shoulder. a-during hyperabduction proximal humerus is levered over acromion out of the joint; b-inferior glenoid rim impacts on superolateral aspect of humeral head held by muscle spasm; c-humeral head levers over the inferior glenoid rim and comes to rest in the infraglenoid region.