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Locked patellar dislocation with vertical axis rotation. A case report.
1Department of Orthopaedic Surgery, Long Island Jewish Medical Center, New Hyde Park, New York 11042.
Clinical Orthopaedics and Related Research
|June 1, 1992
Summary
Rare patellar dislocations involving significant rotation are challenging to treat. Open reduction may be necessary when closed reduction attempts fail, even under general anesthesia.
Area of Science:
- Orthopedic Surgery
- Knee Joint Biomechanics
Background:
- Traumatic lateral patellar dislocation is common.
- Patellar dislocations with rotation are rare and pose therapeutic challenges.
Observation:
- A 16-year-old male experienced a 90-degree vertically rotated patellar dislocation after a lateral knee blow.
- The patella became lodged against the lateral femoral condyle.
Findings:
- Closed reduction attempts under general anesthesia were unsuccessful.
- Open reduction was required due to the unique nature of the dislocation, with the patella lateral to the femoral condyle.
Implications:
- Surgeons must be prepared for open reduction in rare, rotated patellar dislocations.
- This case highlights the need for tailored surgical approaches in complex patellar instability.