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Posterior dislocation in a voluntary subluxator: a case report.
Lara L Devgan1, Harpreet S Gill, Christopher Faustin
1Division of Sports Medicine and Shoulder Surgery, Department of Orthopedic Surgery, The Johns Hopkins University, Baltimore, MD 21224-2780, USA.
Medicine and Science in Sports and Exercise
|May 9, 2006
Summary
Posterior shoulder instability is rare. This case highlights a patient with voluntary posterior subluxation who experienced traumatic instability, requiring surgery despite prior nonoperative treatment.
Area of Science:
- Orthopedic Surgery
- Sports Medicine
- Shoulder Biomechanics
Background:
- Posterior shoulder instability is uncommon, classified as traumatic or atraumatic, and voluntary or involuntary.
- Voluntary posterior instability typically lacks a trauma history and often responds to physical therapy.
Observation:
- A patient with voluntary, atraumatic posterior subluxation developed symptomatic traumatic posterior instability.
- Nonoperative interventions, including rehabilitation, failed to restore preinjury function.
Findings:
- The patient required operative treatment for a posterior labrum lesion.
- This case presents a rare coexistence of voluntary, atraumatic, and traumatic posterior shoulder instability.
Implications:
- Recognizing combined instability patterns is crucial for effective management.
- Traumatic posterior instability, even with prior voluntary subluxation, may necessitate surgery in active individuals.