scholarly journals Impact of Tibial Component Coronal Alignment on Knee Joint Biomechanics Following Fixed‐bearing Unicompartmental Knee Arthroplasty: A Finite Element Analysis

2021 ◽  
Author(s):  
Yong Nie ◽  
Qiang Yu ◽  
Bin Shen
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Knee Joint ◽  
Knee Arthroplasty ◽  
Unicompartmental Knee Arthroplasty ◽  
Tibial Component ◽  
Fixed Bearing ◽  
Coronal Alignment ◽  
Element Analysis ◽  
Joint Biomechanics

scholarly journals Finite-Element Analysis of Stress on the Proximal Tibia After Unicompartmental Knee Arthroplasty

2020 ◽  
Vol 87 (5) ◽  
pp. 260-267
Author(s):  
Mihoro Sano ◽  
Yasushi Oshima ◽  
Kohei Murase ◽  
Katsumi Sasatani ◽  
Shinro Takai
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Knee Arthroplasty ◽  
Unicompartmental Knee Arthroplasty ◽  
Proximal Tibia ◽  
Element Analysis ◽  
Unicompartmental Knee

Finite element analysis of unicompartmental knee arthroplasty

2010 ◽  
Vol 32 (1) ◽  
pp. 14-21 ◽  
Author(s):  
Andrew R. Hopkins ◽  
Andrew M. New ◽  
Ferdinando Rodriguez-y-Baena ◽  
Mark Taylor
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Knee Arthroplasty ◽  
Unicompartmental Knee Arthroplasty ◽  
Element Analysis ◽  
Unicompartmental Knee

scholarly journals Tibial cutting guide (resector) holding pins position and subsequent risks of periprosthetic fracture in unicompartmental knee arthroplasty: a finite element analysis study

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Elvis Chun-sing Chui ◽  
Lawrence Chun-man Lau ◽  
Carson Ka-bon Kwok ◽  
Jonathan Patrick Ng ◽  
Yuk-wah Hung ◽  
...  
Keyword(s):  
Finite Element Analysis ◽  
Finite Element ◽  
Knee Arthroplasty ◽  
Unicompartmental Knee Arthroplasty ◽  
Periprosthetic Fracture ◽  
Tibial Plateau ◽  
Tibial Fracture ◽  
Element Analysis ◽  
Unicompartmental Knee ◽  
Cutting Guide

Abstract Background Periprosthetic fracture of the tibia after unicompartmental knee arthroplasty has been reported to be associated with excessive pin holes created for stabilization of the cutting guide. However, fractures have also been reported in cases using two pins as in the method suggested by the manufacturer. It is currently unclear whether variations in pinhole positions make a difference in proximal tibial fracture risk. Methods Finite element models were constructed using Chinese female bone computed tomography images, with bone cuts made according to the surgical steps of implanting a fixed bearing unicompartmental arthroplasty. Four combinations of pinholes (pins placed more closely to the medial tibial cortex or centrally along the mechanical axis as allowed by the tibial cutting guide) created for tibial cutting guide placement were tested by finite element analyses. Testing loads were applied for simulating standing postures. The maximum von Mises stress on the tibial plateau was evaluated. Results Pinhole placed close to the medial edge of the proximal tibial plateau is associated with the highest stress (27.67 Mpa) and is more likely to result in medial tibial fracture. On the contrary, pinhole placed along the central axis near the tibial tuberosity has the lowest stress (1.71 Mpa) and reflects lower risk of fracture. Conclusion The present study revealed that placing tibial cutting guide holding pins centrally would lower the risks of periprosthetic fracture of the medial tibial plateau by analyzing the associated stress in various pin hole positions using finite element analysis.

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