Difference between revisions of "Posterior shoulder dislocation"

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*Prominence of posterior shoulder and ant flattening of normal shoulder contour
 
*Prominence of posterior shoulder and ant flattening of normal shoulder contour
 
*Pt unable to rotate or abduct affected arm
 
*Pt unable to rotate or abduct affected arm
 +
 +
==Differential Diagnosis==
 +
{{Shoulder DDX}}
  
 
==Diagnosis==
 
==Diagnosis==
 
*Plain film X-ray
 
*Plain film X-ray
 
**Scapular "Y" view shows humeral head in posterior position
 
**Scapular "Y" view shows humeral head in posterior position
 
==Differential Diagnosis==
 
{{Shoulder DDX}}
 
  
 
==Management==
 
==Management==

Revision as of 15:41, 4 July 2015

Background

  • Via forceful internal rotation/adduction (sz, electric shock) or blow to ant shoulder
  • Neurovascular and rotator cuff tears are less common than in ant dislocations

Clinical Features

  • Prominence of posterior shoulder and ant flattening of normal shoulder contour
  • Pt unable to rotate or abduct affected arm

Differential Diagnosis

Shoulder and Upper Arm Diagnoses

Traumatic/Acute:

Nontraumatic/Chronic:

Refered pain & non-orthopedic causes:

Diagnosis

  • Plain film X-ray
    • Scapular "Y" view shows humeral head in posterior position

Management

  • Reduce
    • Traction applied to adducted arm in long axis of humerus
    • Assistant pushes humeral head anteriorly into glenoid fossa
  • Sling and swath

Disposition

  • Discharge after reduction
  • Ortho follow-up

See Also

References