Biomechanical Modeling of Human Foot using Finite Element Methods

Objective: Studies involving in vivo experimentation in human beings requires ethical clearance and it is cumbersome due to existing laws and procedures. This research aims in developing a 3D anatomically realistic Finite Element (FE) model of the human foot. Methodology: The Computed tomography (CT) images of the human foot were captured. Using image reconstruction technique, the outer surface of the various components of foot including the 26 bones, plantar fascia, achilles tendon and other ligaments were developed. Findings: Applying the necessary boundary and loading conditions on the FE model, the internal stress distribution under different conditions of foot were calculated and compared with published literatures. Applications/Improvements: Upon validation, this FE model can be used to study the behavior a deformed / diabetic foot by altering the suitable material properties of foot. Further the detailed study on design of custom foot orthoses may be performed to counter effect the foot deformity.