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The Effect of Tibial Posterior Slope on Contact Force and Ligaments Stresses in Posterior-Stabilized Total Knee Arthroplasty-Explicit Finite Element Analysis

PURPOSE: The purpose of this study is to evaluate the effect of change in tibial posterior slope on contact force and ligament stress using finite element analysis. MATERIALS AND METHODS: A 3-dimensional finite element model for total knee arthroplasty was developed by using a computed tomography sc...

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Autores principales: Lee, Hwa-Yong, Kim, Sung-Jae, Kang, Kyoung-Tak, Kim, Sung-Hwan, Park, Kwan-Kyu
Formato: Online Artículo Texto
Lenguaje:English
Publicado: The Korean Knee Society 2012
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3374005/
https://www.ncbi.nlm.nih.gov/pubmed/22708109
http://dx.doi.org/10.5792/ksrr.2012.24.2.91
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author Lee, Hwa-Yong
Kim, Sung-Jae
Kang, Kyoung-Tak
Kim, Sung-Hwan
Park, Kwan-Kyu
author_facet Lee, Hwa-Yong
Kim, Sung-Jae
Kang, Kyoung-Tak
Kim, Sung-Hwan
Park, Kwan-Kyu
author_sort Lee, Hwa-Yong
collection PubMed
description PURPOSE: The purpose of this study is to evaluate the effect of change in tibial posterior slope on contact force and ligament stress using finite element analysis. MATERIALS AND METHODS: A 3-dimensional finite element model for total knee arthroplasty was developed by using a computed tomography scan. For validation, the tibial translations were compared with previous studies. The finite element analysis was conducted under the standard gait cycle, and contact force on ultra-high molecular weight polyethylene (UHMWPE) and stresses on lateral and medial collateral ligaments were evaluated. RESULTS: The tibial translations showed similarity with previous studies. As the tibial posterior slope angle increases, the contact stress area increased and was well distributed, and the contact force on UHMWPE decreased overall. However, the maximum contact force in the case for 10° case was greater than those for others. The stresses on ligaments were the greatest and smallest in 0° and 10° cases, respectively. CONCLUSIONS: The higher tibial posterior slope angle leads to the lower contact stress and more extensive stress distribution overall in posterior-stabilized total knee arthroscopy. However, it does not absolutely mean the smallest contact force. The stresses on ligaments increased with respect to the smaller tibial posterior slope angle.
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spelling pubmed-33740052012-06-15 The Effect of Tibial Posterior Slope on Contact Force and Ligaments Stresses in Posterior-Stabilized Total Knee Arthroplasty-Explicit Finite Element Analysis Lee, Hwa-Yong Kim, Sung-Jae Kang, Kyoung-Tak Kim, Sung-Hwan Park, Kwan-Kyu Knee Surg Relat Res Original Article PURPOSE: The purpose of this study is to evaluate the effect of change in tibial posterior slope on contact force and ligament stress using finite element analysis. MATERIALS AND METHODS: A 3-dimensional finite element model for total knee arthroplasty was developed by using a computed tomography scan. For validation, the tibial translations were compared with previous studies. The finite element analysis was conducted under the standard gait cycle, and contact force on ultra-high molecular weight polyethylene (UHMWPE) and stresses on lateral and medial collateral ligaments were evaluated. RESULTS: The tibial translations showed similarity with previous studies. As the tibial posterior slope angle increases, the contact stress area increased and was well distributed, and the contact force on UHMWPE decreased overall. However, the maximum contact force in the case for 10° case was greater than those for others. The stresses on ligaments were the greatest and smallest in 0° and 10° cases, respectively. CONCLUSIONS: The higher tibial posterior slope angle leads to the lower contact stress and more extensive stress distribution overall in posterior-stabilized total knee arthroscopy. However, it does not absolutely mean the smallest contact force. The stresses on ligaments increased with respect to the smaller tibial posterior slope angle. The Korean Knee Society 2012-06 2012-05-31 /pmc/articles/PMC3374005/ /pubmed/22708109 http://dx.doi.org/10.5792/ksrr.2012.24.2.91 Text en Copyright © 2012. The Korean Knee Society http://creativecommons.org/licenses/by-nc/3.0 This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/by-nc/3.0/) which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Lee, Hwa-Yong
Kim, Sung-Jae
Kang, Kyoung-Tak
Kim, Sung-Hwan
Park, Kwan-Kyu
The Effect of Tibial Posterior Slope on Contact Force and Ligaments Stresses in Posterior-Stabilized Total Knee Arthroplasty-Explicit Finite Element Analysis
title The Effect of Tibial Posterior Slope on Contact Force and Ligaments Stresses in Posterior-Stabilized Total Knee Arthroplasty-Explicit Finite Element Analysis
title_full The Effect of Tibial Posterior Slope on Contact Force and Ligaments Stresses in Posterior-Stabilized Total Knee Arthroplasty-Explicit Finite Element Analysis
title_fullStr The Effect of Tibial Posterior Slope on Contact Force and Ligaments Stresses in Posterior-Stabilized Total Knee Arthroplasty-Explicit Finite Element Analysis
title_full_unstemmed The Effect of Tibial Posterior Slope on Contact Force and Ligaments Stresses in Posterior-Stabilized Total Knee Arthroplasty-Explicit Finite Element Analysis
title_short The Effect of Tibial Posterior Slope on Contact Force and Ligaments Stresses in Posterior-Stabilized Total Knee Arthroplasty-Explicit Finite Element Analysis
title_sort effect of tibial posterior slope on contact force and ligaments stresses in posterior-stabilized total knee arthroplasty-explicit finite element analysis
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3374005/
https://www.ncbi.nlm.nih.gov/pubmed/22708109
http://dx.doi.org/10.5792/ksrr.2012.24.2.91
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