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Posterior Shoulder Dislocation
 

Author: Miguel Agrait Gonzalez, MD CAQ-SM
Affiliation: Centro Medico Episcopal San Lucas Emergency Medicine Residency
Co Author(s): Adriana Mercado MD Juan Colon García MD
Senior Editor: Drew Duerson, MD

Clinical Vignette: A 20-year-old male boxer presented to the emergency department with acute right shoulder pain that began during a sparring session approximately one hour prior to presentation. He reported feeling immediate pain during sparring and was unable to continue due to pain. On examination, he held his right arm in adduction and internal rotation. There was significant pain with attempted motion, particularly external rotation. Point-of-care ultrasound was performed and demonstrated findings consistent with a posterior shoulder dislocation. The patient subsequently received an interscalene nerve block, followed by successful closed reduction without complication.

Type of Probe Used: Curvilinear transducer (2–5 MHz) using a virtual abdomen/MSK preset



Unlabeled Long Axis View of the Posterior Glenohumeral Joint Pre-Reduction.


Labeled long axis view of the posterior glenohumeral joint with the humeral head located posterior, in the near field of the image, with the glenoid in the far field consistent with a posterior shoulder dislocation.


Unlabeled Long Axis View of the Posterior Glenohumeral Joint Post-Reduction.


Labeled long axis view of the posterior glenohumeral joint with humeral head visualized within glenoid consistent with successful reduction.
View Video

Unlabeled Long Axis pre-reduction Cine scanning superiorly and inferiorly showing the posterior dislocation with the humeral head posterior to the glenoid in the near field and the glenoid in the far field. 
View Video

Labeled Long Axis pre-reduction Cine scanning superiorly and inferiorly showing the posterior dislocation with the humeral head posterior to the glenoid in the near field and the glenoid in the far field. 
View Video

Unlabeled Long Axis post-reduction Cine scanning superiorly and inferiorly showing normal articulation of the glenoid and humeral head with internal and external rotation.
View Video

Labeled Long Axis post-reduction Cine scanning superiorly and inferiorly showing normal articulation of the glenoid and humeral head with internal and external rotation.

NOTE: For more information, please contact the AMSSM, 4000 W. 114th Street, Suite 100, Leawood, KS 66211 (913) 327-1415.
 

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Phone: 913.327.1415


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