Force Characterization Of Soft Tissues In The Post-Tkr Knee During Activities Of Daily Living

Abstract

While total knee replacement (TKR) aims to provide patients with a pain-free joint, previous studies have reported that as few as 52% of patients are satisfied with their functional outcomes. A leading cause of dissatisfaction and revision of TKR is joint instability. The key to correcting TKR instability is better understanding of the loads crossing the knee. Therefore, the objective of this study is to characterize the force contributions of knee ligaments after TKR under loading conditions and motions representative of those present during activities of daily living (ADL) and compare them to published in situ TKR contact forces.

Virtual Joint Motion Simulator Accurately Predicts Effects of Femoral Component Malalignment during TKA

“…Additionally, the virtual simulator is limited in the motions and loads that can be automated, meaning data collection for clinically relevant flexion angles greater than 90 • would need to be collected manually and at a great time cost. Furthermore, the loads we used were not indicative of loads experienced by the knee joint during weight-bearing activities [27]; thus, future work should examine ligament forces and engagement patterns during weight-bearing activities of daily living, such as gait and stair climbing.…”