104 89

Cited 25 times in

Measuring the effect of femoral malrotation on knee joint biomechanics for total knee arthroplasty using computational simulation

Authors
 K-T. Kang  ;  Y-G. Koh  ;  J. Son  ;  O-R. Kwon  ;  C. Baek  ;  S. H. Jung  ;  K. K. Park 
Citation
 BONE & JOINT RESEARCH, Vol.5(11) : 552-559, 2016 
Journal Title
 BONE & JOINT RESEARCH 
Issue Date
2016
Abstract
Objectives : Malrotation of the femoral component can result in post-operative complications in total knee arthroplasty (TKA), including patellar maltracking. Therefore, we used computational simulation to investigate the influence of femoral malrotation on contact stresses on the polyethylene (PE) insert and on the patellar button as well as on the forces on the collateral ligaments. Materials and Methods : Validated finite element (FE) models, for internal and external malrotations from 0° to 10° with regard to the neutral position, were developed to evaluate the effect of malrotation on the femoral component in TKA. Femoral malrotation in TKA on the knee joint was simulated in walking stance-phase gait and squat loading conditions. Results : Contact stress on the medial side of the PE insert increased with internal femoral malrotation and decreased with external femoral malrotation in both stance-phase gait and squat loading conditions. There was an opposite trend in the lateral side of the PE insert case. Contact stress on the patellar button increased with internal femoral malrotation and decreased with external femoral malrotation in both stance-phase gait and squat loading conditions. In particular, contact stress on the patellar button increased by 98% with internal malrotation of 10° in the squat loading condition. The force on the medial collateral ligament (MCL) and the lateral collateral ligament (LCL) increased with internal and external femoral malrotations, respectively. Conclusions: These findings provide support for orthopaedic surgeons to determine a more accurate femoral component alignment in order to reduce post-operative PE problems.
Files in This Item:
T201605974.pdf Download
DOI
10.1302/2046-3758.511.BJR-2016-0107.R1
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Orthopedic Surgery (정형외과학교실) > 1. Journal Papers
Yonsei Authors
Park, Kwan Kyu(박관규) ORCID logo https://orcid.org/0000-0003-0514-3257
Jeong, Se Han(정세한)
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/152994
사서에게 알리기
  feedback

qrcode

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

Browse