(Jaehun Ro, Central R&D Center, Corentec Co., Ltd, South Korea, 05. October, 2016 )
Total knee replacement (TKR) is a well proven surgical procedure and squat motion is a common activity in daily life. TKR contact mechanics and kinematics are important issue in both clinical and mechanical field, however, are not well known. The purpose of this study was to 1) validate the TKR implanted computer musculoskeletal model during squatting and to 2) calculate the contact mechanics in both tibiofemoral and patellofemoral joint. Squat motion was simulated in musculoskeletal simulation software (AnyBody Modeling System, AnyBody Technology, Denmark). Subject-specific bone models used in the simulation were reconstructed from CT images by Mimics (Materialize, Belgium). The TKR components used in this study are PS-type LOSPA Primary Knee System (Corentec, South Korea). Force-dependent kinematics was used in the simulation. In conclusion, total knee arthroplasty implanted musculoskeletal model with 6 degree of freedom knee joint was well constructed and validated by comparison of main results in tibiofemoral and patellofemoral contact forces during squatting.
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