0 41

Cited 0 times in

Effect of femoral component position on biomechanical outcomes of unicompartmental knee arthroplasty

Authors
 Kyoung-Tak Kang  ;  Juhyun Son  ;  Yong-Gon Koh  ;  Oh-Ryong Kwon  ;  Sae Kwang Kwon  ;  Yong Jun Lee  ;  Kwan Kyu Park 
Citation
 Knee, Vol.25(3) : 491-498, 2018 
Journal Title
 Knee 
ISSN
 0968-0160 
Issue Date
2018
Keywords
Contact stress ; Finite element analysis ; Malalignment ; Unicompartmental knee arthroplasty
Abstract
BACKGROUND: The positions of unicompartmental femoral components do not always follow the neutral center of the medial distal femoral condyle. The biomechanical effect of the center of the distal femoral condyle has not yet been evaluated, and the optimal femoral position in unicompartmental knee arthroplasty (UKA) is yet to be biomechanically justified. The purpose of this study was to evaluate, using finite element analysis, the effect of the center of the distal femoral component on the biomechanical outcomes of UKA with respect to the contact stresses in the polyethylene (PE) insert and articular cartilage. METHODS: Five models in which the centers of the distal femoral components were translated by three millimeters and five millimeters to the medial and lateral sides, respectively, from the neutral position were modeled and analyzed in a gait loading condition. RESULTS: The contact stresses on the PE insert increased as the center of the femoral component translated to the lateral side and, in contrast, the contact stresses decreased as it translated to the medial side. For the articular cartilage the contact stresses increased and decreased as the center of the femoral component translated to the medial and lateral sides. CONCLUSION: This study implied that the best position for the femoral component in UKA could be the center of the distal femoral condyle. Femoral component position could be one of the sensitive factors that influenced the contact stresses on the PE insert and articular cartilage, and the postoperative significance of the femoral component position in UKA.
Full Text
https://www.sciencedirect.com/science/article/pii/S096801601830098X
DOI
10.1016/j.knee.2018.03.003
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학교실) > 1. Journal Papers
Yonsei Authors
Park, Kwan Kyu(박관규)
Export
RIS (EndNote)
XLS (Excel)
XML
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/167244
사서에게 알리기
  feedback

qrcode

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

Browse