Factors Affecting the Impingement Angle of Fixed- and Mobile-Bearing Total Knee Replacements

2007 ◽  
Vol 22 (5) ◽  
pp. 745-752 ◽  
Author(s):  
Peter S. Walker ◽  
Gokce Yildirim ◽  
Jon Sussman-Fort ◽  
Jonathan Roth ◽  
Brian White ◽  
...  
Keyword(s):  
Mobile Bearing ◽  
Impingement Angle ◽  
Factors Affecting ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee

IN VIVO THREE-DIMENSIONAL KINEMATICS OF TOTAL KNEE REPLACEMENTS DURING OPEN AND CLOSED KINETIC CHAIN ACTIVITIES

2011 ◽  
Vol 23 (04) ◽  
pp. 279-285
Author(s):  
Mei-Ying Kuo ◽  
Cheng-Chung Lin ◽  
Shih-Wun Hong ◽  
Tsung-Yuan Tsai ◽  
Horng-Chaung Hsu ◽  
...  
Keyword(s):  
Tibial Plateau ◽  
Three Dimensional ◽  
Mobile Bearing ◽  
Medial Tibial Plateau ◽  
Kinetic Chain ◽  
Total Knee Replacements ◽  
Contact Patterns ◽  
Knee Replacements ◽  
Total Knee ◽  
Closed Kinetic Chain

Measurement of the three-dimensional (3D) motions and surface kinematics of total knee replacements (TKR) during different kinetic activities helps provide necessary knowledge for a better use of these activities for rehabilitation purposes. The 3D kinematics of the knee in eight patients with posterior cruciate ligament-retaining (PCL-retaining) mobile-bearing TKR were measured during sit-to-stand, a closed kinetic chain (CKC) activity, and active knee flexion/extension, an open kinetic chain (OKC) activity, using a single-plane, 3D fluoroscopy method. Angular, translational motions as well as the contact patterns of the prosthesis components were calculated. The joint angular motion patterns were not statistically different between the OKC and CKC activities, but different contact patterns were found. The knee joint center translated more anteriorly during OKC than during CKC activities. Compared to the CKC activity, the more anterior contact positions and smaller total displacements of the medial contact in the OKC activity may indicate a greater loading in PCL and a smaller contact area on the medial tibial plateau. Rehabilitation of patients with mobile-bearing TKR may have to consider the potential negative effects of the greater loadings in the PCL and greater stresses in the medial tibial plateau when using OKC as a training exercise.

Risk of Revision for Fixed Versus Mobile-Bearing Primary Total Knee Replacements

2012 ◽  
Vol 94 (21) ◽  
pp. 1929-1935 ◽  
Author(s):  
Robert S. Namba ◽  
Maria C.S. Inacio ◽  
Elizabeth W. Paxton ◽  
Christopher F. Ake ◽  
Cunlin Wang ◽  
...  
Keyword(s):  
Mobile Bearing ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee ◽  
Primary Total Knee

Mobile bearing or fixed bearing? A meta-analysis of outcomes comparing mobile bearing and fixed bearing bilateral total knee replacements

The Knee ◽  
2014 ◽  
Vol 21 (2) ◽  
pp. 374-381 ◽  
Author(s):  
Zhan-dong Bo ◽  
Liang Liao ◽  
Jin-min Zhao ◽  
Qing-jun Wei ◽  
Xiao-fei Ding ◽  
...  
Keyword(s):  
Meta Analysis ◽  
Mobile Bearing ◽  
Fixed Bearing ◽  
Total Knee Replacements ◽  
Knee Replacements ◽  
Total Knee
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