On the 2D and 3D finite element simulation in orthopaedy using MRI

Abnormality in human joint biomechanics is the main cause of the degenerati ve disease development, therefore the description and correction of the joi nt biomechanics is essential for adequate treatment. We present an approach how to obtain the data of a patient and how to use these data subsequently in 3D mathematical models. The magnetic resonance imaging (MRI) of thr hip joint is used as a base for 3D simulations. The MRI output has to be trans formed into a form readable by our finite element (FE) software. Two transf ormators were developed for this purpose. To analyse the model as a contact problem, some further transformations are necessary. A contact is assumed between the femur and the pelvis. We compare the results both from the elas tic and from the contact analyses. (C) 1999 IMACS/Elsevier Science B.V. All rights reserved.