Anterior Dislocation
Anterior Dislocation
- As the name implies, an anterior dislocation of the shoulder results in displacement
of the humeral head anterior to the glenoid cavity.
- More then 95% of all shoulder dislocations are anterior.
- This injury results from application of indirect force to the arm through a combination of abduction,
extension, and external rotation.
- Impaction of the humeral head on the glenoid can cause avulsion of the inferior aspect of the anterior
labrum. This injury is known as a Bankart fracture and is commonly associated with anterior shoulder
dislocations.
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AP View of Anterior Dislocation
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The axillary view is very valuable in clarifying the location of the humeral head. Always look carefully
at the axillary view.
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Axillary View of Anterior Dislocation
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