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Comparison of Kinematics in Cruciate Retaining and Posterior Stabilized for Fixed and Rotating Platform Mobile-Bearing Total Knee Arthroplasty with respect to Different Posterior Tibial Slope

Reconstructed posterior tibial slope (PTS) plays a significant role in kinematics restoration after total knee arthroplasty (TKA). However, the effect of increased and decreased PTS on prosthetic type and design has not yet been investigated. We used a finite element model, validated using in vitro...

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Autores principales: Kang, Kyoung-Tak, Koh, Yong-Gon, Son, Juhyun, Kwon, Oh-Ryong, Lee, Jun-Sang, Kwon, Sae Kwang
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6016153/
https://www.ncbi.nlm.nih.gov/pubmed/29992149
http://dx.doi.org/10.1155/2018/5139074
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author Kang, Kyoung-Tak
Koh, Yong-Gon
Son, Juhyun
Kwon, Oh-Ryong
Lee, Jun-Sang
Kwon, Sae Kwang
author_facet Kang, Kyoung-Tak
Koh, Yong-Gon
Son, Juhyun
Kwon, Oh-Ryong
Lee, Jun-Sang
Kwon, Sae Kwang
author_sort Kang, Kyoung-Tak
collection PubMed
description Reconstructed posterior tibial slope (PTS) plays a significant role in kinematics restoration after total knee arthroplasty (TKA). However, the effect of increased and decreased PTS on prosthetic type and design has not yet been investigated. We used a finite element model, validated using in vitro data, to evaluate the effect of PTS on knee kinematics in cruciate-retaining (CR) and posterior-stabilized (PS) fixed TKA and rotating platform mobile-bearing TKA. Anterior-posterior tibial translation and internal-external tibial rotation were investigated for PTS ranging from -3° to 15°, with increments of 1°, for three different designs of TKA. Tibial posterior translation and external rotation increased as the PTS increased in both CR and PS TKAs. In addition, there was no remarkable difference in external rotation between CR and PS TKAs. However, for the mobile-bearing TKA, PTS had less effect on the kinematics. Based on our computational simulation, PTS is the critical factor that influences kinematics in TKA, especially in the CR TKA. Therefore, the surgeon should be careful in choosing the PTS in CR TKAs.
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spelling pubmed-60161532018-07-10 Comparison of Kinematics in Cruciate Retaining and Posterior Stabilized for Fixed and Rotating Platform Mobile-Bearing Total Knee Arthroplasty with respect to Different Posterior Tibial Slope Kang, Kyoung-Tak Koh, Yong-Gon Son, Juhyun Kwon, Oh-Ryong Lee, Jun-Sang Kwon, Sae Kwang Biomed Res Int Research Article Reconstructed posterior tibial slope (PTS) plays a significant role in kinematics restoration after total knee arthroplasty (TKA). However, the effect of increased and decreased PTS on prosthetic type and design has not yet been investigated. We used a finite element model, validated using in vitro data, to evaluate the effect of PTS on knee kinematics in cruciate-retaining (CR) and posterior-stabilized (PS) fixed TKA and rotating platform mobile-bearing TKA. Anterior-posterior tibial translation and internal-external tibial rotation were investigated for PTS ranging from -3° to 15°, with increments of 1°, for three different designs of TKA. Tibial posterior translation and external rotation increased as the PTS increased in both CR and PS TKAs. In addition, there was no remarkable difference in external rotation between CR and PS TKAs. However, for the mobile-bearing TKA, PTS had less effect on the kinematics. Based on our computational simulation, PTS is the critical factor that influences kinematics in TKA, especially in the CR TKA. Therefore, the surgeon should be careful in choosing the PTS in CR TKAs. Hindawi 2018-06-11 /pmc/articles/PMC6016153/ /pubmed/29992149 http://dx.doi.org/10.1155/2018/5139074 Text en Copyright © 2018 Kyoung-Tak Kang et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Kang, Kyoung-Tak
Koh, Yong-Gon
Son, Juhyun
Kwon, Oh-Ryong
Lee, Jun-Sang
Kwon, Sae Kwang
Comparison of Kinematics in Cruciate Retaining and Posterior Stabilized for Fixed and Rotating Platform Mobile-Bearing Total Knee Arthroplasty with respect to Different Posterior Tibial Slope
title Comparison of Kinematics in Cruciate Retaining and Posterior Stabilized for Fixed and Rotating Platform Mobile-Bearing Total Knee Arthroplasty with respect to Different Posterior Tibial Slope
title_full Comparison of Kinematics in Cruciate Retaining and Posterior Stabilized for Fixed and Rotating Platform Mobile-Bearing Total Knee Arthroplasty with respect to Different Posterior Tibial Slope
title_fullStr Comparison of Kinematics in Cruciate Retaining and Posterior Stabilized for Fixed and Rotating Platform Mobile-Bearing Total Knee Arthroplasty with respect to Different Posterior Tibial Slope
title_full_unstemmed Comparison of Kinematics in Cruciate Retaining and Posterior Stabilized for Fixed and Rotating Platform Mobile-Bearing Total Knee Arthroplasty with respect to Different Posterior Tibial Slope
title_short Comparison of Kinematics in Cruciate Retaining and Posterior Stabilized for Fixed and Rotating Platform Mobile-Bearing Total Knee Arthroplasty with respect to Different Posterior Tibial Slope
title_sort comparison of kinematics in cruciate retaining and posterior stabilized for fixed and rotating platform mobile-bearing total knee arthroplasty with respect to different posterior tibial slope
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6016153/
https://www.ncbi.nlm.nih.gov/pubmed/29992149
http://dx.doi.org/10.1155/2018/5139074
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