Massive femoral osteolytic lesion secondary to disengagement of a total knee tibial locking pin: case report.
case_report · Level V
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- Record sourced from PubMed, PMID 17665788.
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Abstract
The Anatomic Modular Knee (AMK; Depuy, Warsaw, Ind) was one of the first designs to incorporate a modular locking mechanism for the tibial insert; fixation was secured using a screw-in tibial tray-locking pin. This case report describes a patient who presented with instability and worsening knee pain 15 years following a primary total knee arthroplasty using the AMK prosthesis. Radiographs and intraoperative assessment revealed proximal migration of the tibial tray-locking pin into the medial femoral condyle resulting in a large osteolytic defect.
Medical subject headings
- Arthroplasty, Replacement, Knee
- Bone Nails
- Femur
- Foreign-Body Migration
- Osteolysis, Essential
Anatomy
- femur
- knee
- tibia