Establishment Of A Three-dimensional Finite Element Model Of Calcaneus And Its Biomechanical Analysis

ObjectiveTo establish the model of calcaneus by the mothod of the three-dimensional finite element,and calculate the various nodes stress of models under different loaded condition.Tt can providing guides to the treating of calcaneus fracture.Methods1. Obtaining the Dicom data by scaning the calcaneus screw CT of normal person.2. The original Dicom form at picture was read in the Mimics directly. After utilization Thresholding,3D Region Growing and Cavity fill to clean the redundancy data, the left calcaneus FEA 3D model was acquired by 3D reconstruction.3. FEA pre-processing model of the calcaneus by surface mesh optimization model can be directly imported after the Ansys finite element software generates three-dimensional finite element model and carry out biomechanical analysis.ResultsEstablishing a more precise and broader three-dimensional finite element model of the calcaneus. Using the Dicom standard and Mimics Software obtain three-dimensional model is written directly to improve the modeling efficiency. We can learn the force to be concentrated area of the calcaneus by Biomechanical analysis.Conclution1. A more precise 3D finite element model of calcaneus is established, and Dicom standard and Mimics software can improve the efficiency of establishment of the 3D finite element model.2. we can understand clearlier the types of calcaneal fractures and it can provide a theoretical basis for clinical treatment.