How does asymmetric tibial insert affect tibiofemoral kinematics and contact stresses in total knee Arthroplasty?

Asymmetric tibial insert design is expected to restore normal knee kinematics better than symmetric design. A tri-condylar implant has asymmetric and symmetric tibial inserts with a ball-and-socket joint to replace the post-cam mechanism. The purpose of this study was to compare the knee kinematics of the two designs and to measure tibiofemoral contact stresses, including that of the ball-and-socket joint.

Source: The Knee - October 6, 2022 Category: Orthopaedics Authors: Young Dong Song, Shinichiro Nakamura, Shinichi Kuriyama, Kohei Nishitani, Hiromu Ito, Yoshihisa Tanaka, Yugo Morita, Shuichi Matsuda Source Type: research