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Revision total knee arthroplasty for excessive ligamentotaxis
Edward J McPherson1, Denise Portugal
1L.A. Orthopaedic Institute, Los Angeles, California 90015, USA.
The Journal of Arthroplasty
|December 15, 2007
Summary
Excessive polyethylene inserts in knee arthroplasty can cause the "joint jack phenomenon," leading to pain. A salvage hinge knee arthroplasty successfully treated this rare complication by reducing joint space and restoring leg length.
Area of Science:
- Orthopedic Surgery
- Biomedical Engineering
Background:
- Knee arthroplasty commonly corrects deformities using soft tissue balancing.
- Excessive ligamentotaxis can lead to the
- joint jack phenomenon,
Observation:
- A case presented with a painful knee and leg length discrepancy due to an overly thick polyethylene insert.
- This condition mimicked the
- joint jack phenomenon
- .
Findings:
- A salvage hinge knee arthroplasty was employed to address the excessive joint space.
- This procedure successfully reduced the joint space, equalized leg lengths, and prevented instability.
Implications:
- This case highlights a novel surgical approach for managing the
- joint jack phenomenon
- in knee arthroplasty.
- Salvage hinge arthroplasty offers a solution for joint space reduction and leg length equalization in complex cases.