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Assessing The Accuracy Of Surgeon Estimation Of Range Of Movement Of The Knee During Total Knee Replacement

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Author(s): Leela C Biant

Journal: Journal of Orthopaedics
ISSN 0972-978X

Volume: 4;
Issue: 2;
Date: 2007;
Original page

Keywords: TKA | flexion

ABSTRACT
Intra-operative estimation of range of flexion, extension, varus and valgus of the knee is important in ligament balancing and implant selection during total knee replacement (TKR). Many outcome studies of TKR are also based on surgeons’ estimation of post-operative range of movement. There are currently no published papers which demonstrate how precise surgeon assessment of range of movement of the knee is. This study evaluated the accuracy of surgeons’ estimation of maximal range of flexion, extension, varus and valgus of the knee compared to simultaneous computer navigated reading of the same knee movements during TKR in 100 patients. The surgeons were very accurate at assessing extension, varus and valgus but consistently underestimated flexion of the knee
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