In vivo kinematics comparison of fixed- and mobile-bearing total knee arthroplasty during deep knee bending motion

Abstract

The present results demonstrated that the fixed-bearing and mobile-bearing posterior-stabilized designs had similar posterior condylar translation and tibial axial rotation during weight-bearing deep knee flexion exceeding 120°.

In vivo kinematics of a low contact stress rotating platform total knee arthroplasty system under weight bearing and non-weight bearing condition

“…Shi et al [23] also reported that the mobile-bearing prosthesis caused medial and lateral condyle rollback during deep knee flexion, which is different from the kinematics of the mobile-bearing prosthesis in the present study. An LCS mobile-bearing prosthesis has characteristic features, including high congruency without the cam-post mechanism, whereas the PFC-Sigma RP-F mobile-bearing prosthesis has the cam-post mechanism.…”

Does Insert Type Affect Clinical and Functional Outcome in Total Knee Arthroplasty? A Randomised Controlled Clinical Trial With 5-Year Follow-Up

“…In vivo, posterior condylar translation and tibial axial rotation in flexion have been shown to be similar in patients with MB-TKA and FB-TKA [26]. For function [7][8][9][10], radiological outcome [8,11] and quality of life [7] generally no significant differences between both types of TKA were reported, although one meta-analysis did find lower pain scores in MB-TKA [27].…”

Characterizing fluoroscopy based kinematic accuracy as a function of pulse width and velocity

“…Relative orientation was defined using Euler angles (Z-X-Y sequence; flexion/extension, abduction/adduction, external/internal rotation) based on custom Matlab scripts. This process has shown to be reliable and good intra-class agreement (ICC: 0.94–0.96) (Shi et al 2014). …”