Presentation
Pain without trauma in shoulder.
Patient Data
Age: 65
Gender: Male
From the case:
Right shoulder posterior dislocation with glenoid engagement
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The humeral head articular surface is projected beyond the glenoid edge. No visible fractures.
From the case:
Right shoulder posterior dislocation with glenoid engagement
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Posterior dislocation of the humeral head with reverse Hill Sachs lesion and engagement of the glenoid. Bankart lesion is associated with detachment of the bone fragment at the 6-9 o'clock position.
From the case:
Right shoulder posterior dislocation with glenoid engagement
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Circle highlights location of humeral head impaction on the glenoid with resulting reverse Hill-Sachs lesion.
Case Discussion
Posterior shoulder dislocations can be a difficult diagnosis to make on plain radiographs.