A 3D model analysis for developing multifunctional knee prosthesis

Abstract

Currently used knee prostheses are broadly classified into the CR type and the PS type. We are planning to develop a new type of knee prosthesis which could make a complete deep knee flexion. Although the new prosthesis should be developed on the basis of the PS rather than the CR, we should further consider about weather we could cut the PCL so readily, and weather high stress concentration might not arise on the articulation surfaces whose conformity is usually so high. Thus we performed simulation analyses subject to the CR instead of the PS, thereby introducing the relationship between the PCL function and the joint articulation conformity. Then making most of the simulation results, we designed a complete flexionable knee prosthesis designated CFK prosthesis.