A Finite Element Analysis of the Human Knee Joint: Menisci Prosthesis instead of the Menisci and Articular Cartilage

The finite element models have been used to evaluate the biomechanics of healthy and pathologic knee. And the imaging data provide functional representation of anatomical structures for the models. Previous studies have established the geometry of bone from Computed tomography (CT), and created the cartilage of femoral, tibial according to Magnetic Resonance Imaging (MRI). The meniscus geometric structure created of the current studies are large different with their clinical physiological shape, however. In that case, an inaccurate result may be produced. Soft tissue prosthesis instead of the articular cartilage and menisci is established, and a new 3D finite element model of the human knee joint is constructed in this paper. The Von Mises stress distributions of knee static mechanical analysis prove that this new model is available.