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Finite element analysis of knee and ankle joint during gait based on motion analysis

Authors
Park, SangbaekLee, SeungjuYoon, JeongroChae, Soo-Won
Issue Date
1월-2019
Publisher
ELSEVIER SCI LTD
Keywords
FE analysis; Contact pressure distribution; Knee and ankle; Dynamic analysis; Gait
Citation
MEDICAL ENGINEERING & PHYSICS, v.63, pp.33 - 41
Indexed
SCIE
SCOPUS
Journal Title
MEDICAL ENGINEERING & PHYSICS
Volume
63
Start Page
33
End Page
41
URI
https://scholar.korea.ac.kr/handle/2021.sw.korea/68475
DOI
10.1016/j.medengphy.2018.11.003
ISSN
1350-4533
Abstract
Contact pressures in the articular cartilage during gait affect injuries and the degenerative arthritis of knee and ankle joints. However, only contact forces at the knee and ankle joints during gait can be estimated by using a rigid body dynamic model. The contact pressure distribution can be obtained quantitatively for a static posture by using finite element (FE) analysis in most cases. The purpose of this study is to develop a new method to obtain the contact pressure distribution at the knee and ankle joints during gait by integrating FE analysis with rigid body dynamic analysis. In this method, a reference FE model of the lower extremity is constructed first and is then transformed to each stance phase of the gait obtained from dynamic analysis by using homogeneous transformation. The muscle forces and ground reaction force (GRF) during gait obtained from the dynamic analysis were used as loading conditions for FE analysis. Finally, the contact pressure distribution at the tibia plateau cartilage and talus cartilage were estimated at the 1st peak, mid-stance, and the 2nd peak at the same time. The present method can provide the contact pressure distribution at the knee and ankle joints over the entire gait. (C) 2018 IPEM. Published by Elsevier Ltd. All rights reserved.
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