A Three-Dimensional Finite Element Model Constructed Using Magnetic Resonance Images of a Knee

Abstract

Abstract. In recent years, MRI studies have resulted in a better understanding of the movement and deformation of the meniscus in the terbinafine connection and provide, information on the morphology of the articular cartilage. In this paper, we will use of computer-aided technique and MRI to reconstruct the shape of the living knee, and divide the mesh and add the material properties to create the three-dimensional nonlinear knee joint finite element model information. Examining the relative sliding and friction in the knee joint, I used the dynamic dominant non-linear finite element technique to simulate the photomechanical properties of the tibial femoral joint under different loads. Apply a pressure, in the 0 degree direction to calculate the change of each structure, including: maximum pressure, average pressure, contact pressure, internal stress. Dimensional Finite Element Model of Knee Joint was Established Based on MRIAll of the data from this study were obtained from the 25-year-old healthy male knee joint. The equipment was selected from GE's MRI Signa product line and equipped with DICOM 3.0 international standard interfaces for image output of DICOM standard format. Simplware Software to Build STL Format ModelWe use image processing software Simpleware-ScanIPV3.1 to complete the entire area of the knee the three-dimensional reconstruction of the structure. Since the whole image needs to be divided into the patella, femur, tibia and their surface of the cartilage and medial and lateral meniscus, need to establish a number of different mask processing, and finally through the Boolean operation to remove the overlap between the different parts of the output data.