Recurrent Shoulder Posteroinferior Subluxation Status Post Reverse Remplissage

Area of Science:

• Orthopedic Surgery
• Sports Medicine
• Traumatology

Background:

• Posterior shoulder dislocation is an uncommon injury.
• It often results from intense external rotator muscle contraction (seizures, trauma, electrical shock).
• Delayed diagnosis can lead to significant complications like functional deficits and humeral head osteonecrosis.

Observation:

• The diagnosis of posterior shoulder dislocation is frequently missed or delayed.
• Repeated glenohumeral joint insults can cause posterior instability.
• A reverse Hill-Sachs lesion (anteromedial humeral head fracture) may occur.

Findings:

• Closed reduction is an option for initial dislocations.
• Surgical interventions for posterior instability include the modified McLaughlin procedure (reverse remplissage).
• The efficacy of the reverse remplissage procedure remains controversial.

Implications:

• Accurate and timely diagnosis is crucial to prevent long-term complications.
• Further research is needed to clarify the success rates of surgical interventions for posterior shoulder instability.
• Understanding these injuries aids in developing better treatment strategies for athletes and trauma patients.