Fig. 1: Schematic diagram of finite element (FE) analysis.
From: Preserving the first ray or first two rays in forefoot amputation for diabetic foot ulcers
a CT images of DICOM format were processed in Mimics software. b Models of bones were built based on CT data. Models of ligaments, Achilles tendon, plantar fascia, and cartilage were built based on anatomical landmarks. c Models of encapsulated soft tissue were built based on CT data. Ground plate models were created in 3-Matic software. d Surface remeshing, wrapping and smoothing. e Constructing volume mesh. f After assigning material property, loads and boundary constraints were set. The phase depicted here was the loading response (LR). g Models of other phases: heel strike (HS); middle stance (MS); terminal stance (TS); toe off (TO). h The strain-stress curve of the Mooney-Rivlin hyperelastic materials of the encapsulated soft tissue. i The plantar foot was partitioned into forefoot, midfoot, and hindfoot segments. j 80 nodes were marked on each metatarsal for von Mises stress measurement.
