Mechanically aligned total knee arthroplasty with the extension-first technique does not equally restore neutral knee alignment in all preoperative knee phenotypes.

Abstract excerpt

PURPOSE: The aim of this study was to determine the change in the long leg axis according to the preoperative knee phenotype using the mechanically aligned extension-first technique in total knee arthroplasty. The hypothesis of this study was that the knee phenotype would have an impact on the postoperative leg axis. METHODS: This was a retrospective comparative study comprising 224 whole-leg radiographs of 112...

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• Arthroplasty, Replacement, Knee
• Knee Joint
• Osteoarthritis, Knee
• Phenotype
• Tibia