Posterior Shoulder Dislocation During Morning PT!

Research Paper Title

Posterior Shoulder Dislocation During Morning PT: A Case Report.

Abstract

Posterior shoulder dislocation should be considered in the differential diagnosis of acute shoulder pain and immobility following trauma. Although far less common then the anterior dislocation, it is associated with high rates of comorbidity.

Seventy-nine percent of posterior shoulder dislocations are missed on initial presentation, which is partially responsible for the high rate of comorbidity associated with these injuries.

The mechanism of injury is varied from generalised seizure to minor trauma, which adds to the complexity of the diagnosis. There is a well-documented “vulnerable position” described as injury to the arm while it is in a flexed, adducted, and internally rotated position that is highly associated with posterior shoulder dislocation. The plain film scapular Y is the most clinically significant imaging and can be used alone to diagnose the injury, although ancillary imaging such as magnetic resonance imaging is often warranted.

Once this rare condition has been diagnosed, there are a number of appropriate reduction techniques available to the health care provider. Presented here is a case of posterior shoulder dislocation that occurred while doing pushups (press-ups) for routine morning physical training.

Also discussed are keys to recognition and treatment as well as a brief discussion of associated complications of the injury.

Reference

Williams, S.E., Hackett, A.J., Jensen, C. & Riddle, M.L. (2018) Posterior Shoulder Dislocation During Morning PT: A Case Report. Military Medicine. doi: 10.1093/milmed/usy133. [Epub ahead of print].

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