Open Access

Biomechanical finite element analysis of various tibial plateau posterior tilt angles in medial unicondylar knee arthroplasty

  • Authors:
    • Peng Zhang
    • Yun-Lu Wang
    • Lun Liu
    • Hui-Qiang Yang
    • Peng-Fei Han
    • Xiao-Dong Li
  • View Affiliations

  • Published online on: July 5, 2024     https://doi.org/10.3892/etm.2024.12641
  • Article Number: 353
  • Copyright: © Zhang et al. This is an open access article distributed under the terms of Creative Commons Attribution License.

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Abstract

The present study aimed to determine the optimal posterior tibial plateau inclination for fixed‑platform unicondylar knee arthroplasty (UKA) using finite element analysis (FEA). These findings provided a theoretical basis for selecting an appropriate posterior inclination of the tibial plateau during surgery. The present study utilized the FEA method to create models of fixed‑platform UKA with tibial plateau posterior inclinations of 3, 6 and 9˚. The stress changes in the internal structures of each model after knee flexion motion were then compared. During knee flexion from 0 to 90˚, the contact and Von Mises equivalent stresses of the femoral condyle prosthesis and tibial platform pad revealed consistent trends of 3˚ posterior inclination, >6˚ posterior inclination and >9˚ posterior inclination. The present study established the first quasi‑dynamic fixed‑platform UKA model of the knee joint under load‑bearing conditions. From a theoretical perspective, it was found that controlling the posterior inclination of UKA between 6 and 9˚ may be more beneficial for the survival of the tibial platform pad than between 3 and 6˚. It is also more effective in reducing pad wear.
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September-2024
Volume 28 Issue 3

Print ISSN: 1792-0981
Online ISSN:1792-1015

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Spandidos Publications style
Zhang P, Wang Y, Liu L, Yang H, Han P and Li X: Biomechanical finite element analysis of various tibial plateau posterior tilt angles in medial unicondylar knee arthroplasty. Exp Ther Med 28: 353, 2024.
APA
Zhang, P., Wang, Y., Liu, L., Yang, H., Han, P., & Li, X. (2024). Biomechanical finite element analysis of various tibial plateau posterior tilt angles in medial unicondylar knee arthroplasty. Experimental and Therapeutic Medicine, 28, 353. https://doi.org/10.3892/etm.2024.12641
MLA
Zhang, P., Wang, Y., Liu, L., Yang, H., Han, P., Li, X."Biomechanical finite element analysis of various tibial plateau posterior tilt angles in medial unicondylar knee arthroplasty". Experimental and Therapeutic Medicine 28.3 (2024): 353.
Chicago
Zhang, P., Wang, Y., Liu, L., Yang, H., Han, P., Li, X."Biomechanical finite element analysis of various tibial plateau posterior tilt angles in medial unicondylar knee arthroplasty". Experimental and Therapeutic Medicine 28, no. 3 (2024): 353. https://doi.org/10.3892/etm.2024.12641