Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
4062743 | The Journal of Arthroplasty | 2011 | 6 Pages |
Abstract
We developed a new posterior-stabilized total knee arthroplasty (TKA) with a unique post-cam design that induces and accommodates internal tibial rotation with deep knee flexion. To validate the design concept of this system, we conducted an image analysis study employing a computer-aided diagnosis system for 24 TKA-implanted knees. In the analysis, the tibiofemoral relationship in the following 3 postures was evaluated: standing at extension, forward lunge, and kneeling with maximum knee flexion. The results of the image analysis showed achievement of consistent internal rotation of the tibia in deep flexion with a broad contact area at the post-cam interface as intended by the original design concept of this TKA system.
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Authors
Yohei Tsumori, Shinichi Yoshiya, Masahiro Kurosaka, Shoji Kobashi, Nao Shibanuma, Motoi Yamaguchi,