Abstract
Total Knee Arthroplasty with a Lateral Centre of Rotation Design Retained Native Knee Joint Kinematics: A Cadaveric Study under Simulated Muscle Loads
Highlights
The goal of a Total Knee Arthroplasty (TKA) is to relieve pain and ideally to regain the individual tibiofemoral joint kinematics
During walking and dynamic activities a centre of rotation (COR) on the lateral compartment was found [15,16,17], while during squats and kneeling a COR on the medial side was described [18,19,20]. In contrast to this activity dependent motion pattern, it was found that the COR could be medial or lateral, depending not on the activity but on the Results: The rotational and translational kinematics showed quite a large variance, which can be explained with the individual anatomy
A medial centre of rotation was found in 8 specimens in the native joint, just one showed a lateral centre of rotation
Summary
The goal of a Total Knee Arthroplasty (TKA) is to relieve pain and ideally to regain the individual tibiofemoral joint kinematics. Patients’ satisfaction after TKA ranges between 70% and 90% [1,2,3], which might be associated with the different available implant designs and in turn, with ongoing discussion on the kinematics of the native human tibiofemoral joint [4,5,6]. In addition to cruciate substituting, cruciate retaining, mobile or fixed bearing designs, differentiation with regards to the location of the pivot, or more precisely with the centre of rotation (COR) of the knee joint, has to be taken into account. Since controversial results on the location of the centre of rotation in the native human knee joint exist, it is still unclear how the design of a total knee replacement should be in order to retain patients’ knee joint movement after Total knee Arthroplasty. The aim of the present study was to determine individual native tibiofemoral joint kinematics as well as the centre of rotation and to investigate the influence of a total knee implant with a proposed lateral centre of rotation on the knee kinematics
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
