Custom-made Biomechanical Model of the Knee Joints
Chin-Yu Wang 1, Tsung-Lin Tsai2, Chien-Fen Huang3
1 Department of Mechanical Engineering, Cheng Shiu University, Taiwan, R.O.C., 2 Physical Medicine and Rehabilitation Department, Mackay Memorial Hospital, Taitung Branch, Taiwan, R.O.C.
Abstract: This paper obtained the data of custom-made tibia, femoral joints and meniscus morphology by studying relating researches and constructed several sagittal section of the knee joint. Based on the 2D bone morphology of femoral condyle and the contact radius relationship of the tibial plateau, it created the design of the sphere curvature of femoral condyle to conform to the demands of the patients. To simulate the various meshing curved surface between bones, this paper considered using sphere to fit femoral condyle, using femur image data to fit the femur into spheres and using the Hertz’s elastic contact theory to construct a femur-tibia and femur-meniscus biomechanical model. Lastly, using the contact stress and contact deformation obtained by solving the numeric examples under specific cases can be used as a reference in the design and production of future prosthesis.
[Chin-Yu Wang, Tsung-Lin Tsai, Chien-Fen Huang. Custom-made Biomechanical Model of the Knee Joints. Life Sci J 2012;9(1):469-473] (ISSN:1097-8135). http://www.lifesciencesite.com. 70
Keywords Elastic Contact, Biomechanical Model, Femur, tibia Full Text 70