Posterior dislocations of the humerus account for less than 5 % of shoulder dislocations and are usually due to direct force. Classically, the causes are seizure or electric shock. The axillary view is the best view to demonstrate this type of dislocation.
|A||AP radiograph of the right shoulder. A cursory examination reveals no obvious dislocation.|
|B||Axillary radiograph. Notice the anterior coracoid with the posteriorly dislocated humeral head relative to the glenoid.|
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