Three-dimensional finite element model of calcaneus and talus during different gait phases
- VernacularTitle:不同步态位相跟、距骨应力分布的三维有限元分析
- Author:
Lifeng LIU
;
Jinfang CAI
;
- Publication Type:Journal Article
- Keywords:
three dimensional finite element model;
calcaneus;
talus;
biomechanics
- From:
Academic Journal of Second Military Medical University
2001;0(09):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To establish a 3 dimensional finite element model of calcaneus and talus for analysing their stress distribution during different gait phases. Methods: CT scanning and computer image processing system were used to establish the model to simulate the situation of calcaneus and talus for 3 phases (heel strike, midstance, push off) during the gait. A finite element solver was used to calculate stress. Results: A three dimensional finite element model of calcaneus and talus was established. And the stress distribution within the bone was obtained and regions with elevated stress at 3 phases were located. The stress distributions of 3 phases were significantly different. The stress increased gradually from heel strike to push off. Conclusion:The model can be used to study biomechanics of calcaneus and talus. The regions of elevated stress of calcaneus and talus are important, which provide an insight into the factors contributing to the fractures and arthritis.
