In Vivo Wear of Highly Crosslinked Polyethylene in Total Knee Arthroplasty

2014 ◽  
pp. 51-61 ◽  
Author(s):  
Pedro Hinarejos Gomez ◽  
Ignasi Pinol Jurado
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Total Knee

Effect of Gait on Patellofemoral Mechanics

2008 ◽  
Author(s):  
Jeffrey E. Bischoff ◽  
Justin S. Hertzler
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Clinical Studies ◽  
Patellofemoral Joint ◽  
Knee Kinematics ◽  
Component Design ◽  
Total Knee ◽  
The Impact ◽  
Reconstructed Knee

Computational modeling of the reconstructed knee is an important tool in designing components for maximum functionality and life. Utilization of boundary conditions consistent with in vivo gait loading in such models enables predictions of knee kinematics and polyethylene damage [1–4], which can then be used to optimize component design. Several recent clinical studies have focused on complications associated with the patellofemoral joint [5–6], highlighting the need to better understand the mechanics of this compartment of total knee arthroplasty (TKA). This study utilizes a computational model to characterize the impact of gait loading on the mechanics of the patella in TKA.

In Vivo Tibiofemoral Contact Kinematics and Contact Forces During Dynamic Weight-Bearing Activities Following Total Knee Arthroplasty

2008 ◽  
Author(s):  
Kartik M. Varadarajan ◽  
Angela Moynihan ◽  
Darryl D’Lima ◽  
Clifford W. Colwell ◽  
Harry E. Rubash ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Computational Models ◽  
Imaging System ◽  
Weight Bearing ◽  
Contact Forces ◽  
Inverse Dynamic ◽  
Contact Kinematics ◽  
Total Knee

Accurate knowledge of in vivo articular contact kinematics and contact forces is required to quantitatively understand factors limiting life of total knee arthroplasty (TKA) implants, such as polyethylene component wear and implant loosening [1]. Determination of in vivo tibiofemoral contact forces has been a challenging issue in biomechanics. Historically, instrumented tibial implants have been used to measure tibiofemoral forces in vitro [2] and computational models involving inverse dynamic optimization have been used to estimate joint forces in vivo [3]. Recently, D’Lima et al. reported the first in vivo measurement of 6DOF tibiofemoral forces via an instrumented implant in a TKA patient [4]. However this technique does not provide a direct estimation of tibiofemoral contact forces in the medial and lateral compartments. Recently, a dual fluoroscopic imaging system has been used to accurately determine tibiofemoral contact locations on the medial and lateral tibial polyethylene surfaces [5]. The objective of this study was to combine the dual fluoroscope technique and the instrumented TKAs to determine the dynamic 3D articular contact kinematics and contact forces on the medial and lateral tibial polyethylene surfaces during functional activities.

Effect of voluntary soft tissue tension and articular conformity after total knee arthroplasty on in vivo anteroposterior displacement

The Knee ◽  
2011 ◽  
Vol 18 (1) ◽  
pp. 11-14 ◽  
Author(s):  
Y. Ishii ◽  
H. Noguchi ◽  
M. Takeda ◽  
H. Kiga ◽  
S.I. Toyabe
Keyword(s):  
Total Knee Arthroplasty ◽  
Soft Tissue ◽  
Knee Arthroplasty ◽  
Soft Tissue Tension ◽  
Total Knee ◽  
Tissue Tension

In Vivo Comparison of Knee Kinematics Before and After High-Flexion Posterior Cruciate-Retaining Total Knee Arthroplasty

2010 ◽  
Vol 25 (6) ◽  
pp. 964-969 ◽  
Author(s):  
Atsushi Kitagawa ◽  
Nobuhiro Tsumura ◽  
Takaaki Chin ◽  
Kazuyoshi Gamada ◽  
Scott A. Banks ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Knee Kinematics ◽  
Cruciate Retaining ◽  
High Flexion ◽  
Before And After ◽  
Total Knee

In Vivo Anteroposterior Femorotibial Translation of Total Knee Arthroplasty

1998 ◽  
Vol 356 ◽  
pp. 47-57 ◽  
Author(s):  
Douglas A. Dennis ◽  
Richard D. Komistek ◽  
Clifford E. Colwell ◽  
Chitranjan S. Ranawat ◽  
Richard D. Scott ◽  
...  
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Total Knee

THE CHITRANJAN RANAWAT AWARD: In Vivo Knee Forces after Total Knee Arthroplasty

2005 ◽  
Vol 440 (&NA;) ◽  
pp. 45-49 ◽  
Author(s):  
Darryl D D???Lima ◽  
Shantanu Patil ◽  
Nikolai Steklov ◽  
John E Slamin ◽  
Clifford W Colwell
Keyword(s):  
Total Knee Arthroplasty ◽  
Knee Arthroplasty ◽  
Total Knee
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