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

Sangbaek Park, Seungju Lee, Jeongro Yoon, Soo Won Chae

Research output: Contribution to journalArticle

2 Citations (Scopus)

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.

Original languageEnglish
JournalMedical Engineering and Physics
DOIs
Publication statusAccepted/In press - 2018 Jan 1

Fingerprint

Finite Element Analysis
Ankle Joint
Knee Joint
Gait
Pressure distribution
Cartilage
Dynamic analysis
Finite element method
Pressure
Muscle
Talus
Dynamic models
Articular Cartilage
Tibia
Posture
Osteoarthritis
Motion analysis
Lower Extremity
Muscles
Wounds and Injuries

Keywords

  • Contact pressure distribution
  • Dynamic analysis
  • FE analysis
  • Gait
  • Knee and ankle

ASJC Scopus subject areas

  • Biophysics
  • Biomedical Engineering

Cite this

Finite element analysis of knee and ankle joint during gait based on motion analysis. / Park, Sangbaek; Lee, Seungju; Yoon, Jeongro; Chae, Soo Won.

In: Medical Engineering and Physics, 01.01.2018.

Research output: Contribution to journalArticle

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