Presentation
MVA.
Patient Data
Age: 40 years
Gender: Female
From the case:
Posterior shoulder dislocation
Loading images...

Frontal

The appearance is suggestive of a posterior glenohumeral dislocation with a lightbulb sign on the frontal projection.
The acromioclavicular joint is well aligned and no fracture is evident.
Case Discussion
Posterior shoulder dislocation is far less common that anterior dislocation and classically seen in patients post electrocution or seizures.