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[Locked posterior dislocation of the hip: a case report]
Irfan Esenkaya1, Nurzat Elmali
1Department of Orthopedics and Traumatology (Ortopedi ve Travmatoloji Anabilim Dali), Medicine Faculty of Inönü University, Malatya, Turkey. iesenkaya@hotmail.com
Acta Orthopaedica Et Traumatologica Turcica
|May 8, 2007
Summary
This case report describes a rare locked posterior hip dislocation causing an acetabular rim impaction fracture. Surgical intervention and hip replacement led to a full recovery with painless, complete range of motion.
Area of Science:
- Orthopedic Surgery
- Trauma Care
- Radiology
Background:
- Posterior hip dislocations can cause femoral head impaction fractures.
- A specific type of locked posterior hip dislocation involving acetabular rim sinking was previously undescribed.
Observation:
- A 26-year-old male sustained a locked posterior hip dislocation after a car crash.
- Computed tomography revealed the posterior acetabular rim impacting the femoral head.
- Surgery showed the rim embedded 12 mm into the femoral head, causing an osteochondral impaction fracture.
Findings:
- The patient underwent an uncemented bipolar hemiarthroplasty due to extensive cartilage damage.
- Follow-up at 28 months showed no patient complaints and a full, painless range of hip motion.
Implications:
- This case highlights a unique mechanism of hip injury.
- It underscores the importance of advanced imaging in diagnosing complex hip dislocations.
- Successful surgical management, including hip replacement, can restore function in severe cases.