3D finite element model of the diabetic neuropathic foot: A gait analysis driven approach |
| |
Authors: | Annamaria Guiotto Zimi Sawacha Gabriella Guarneri Angelo Avogaro Claudio Cobelli |
| |
Institution: | 1. Department of Information Engineering, University of Padova, Via Gradenigo 6b I, 35131 Padova, Italy;2. Department of Clinical Medicine and Metabolic Disease, University Polyclinic, Via Giustiniani 2, 35128 Padova, Italy |
| |
Abstract: | Diabetic foot is an invalidating complication of diabetes that can lead to foot ulcers. Three-dimensional (3D) finite element analysis (FEA) allows characterizing the loads developed in the different anatomical structures of the foot in dynamic conditions. The aim of this study was to develop a subject specific 3D foot FE model (FEM) of a diabetic neuropathic (DNS) and a healthy (HS) subject, whose subject specificity can be found in term of foot geometry and boundary conditions. Kinematics, kinetics and plantar pressure (PP) data were extracted from the gait analysis trials of the two subjects with this purpose. The FEM were developed segmenting bones, cartilage and skin from MRI and drawing a horizontal plate as ground support. Materials properties were adopted from previous literature. FE simulations were run with the kinematics and kinetics data of four different phases of the stance phase of gait (heel strike, loading response, midstance and push off). FEMs were then driven by group gait data of 10 neuropathic and 10 healthy subjects. Model validation focused on agreement between FEM-simulated and experimental PP. |
| |
Keywords: | Diabetic foot Gait analysis Finite element analysis Three-dimensional Multidisciplinary biomechanics approach |
本文献已被 ScienceDirect 等数据库收录! |
|