Accurate Simulation of Hip Joint Range of Motion

This paper presents a hip joint motion simulation method using accurate hip joint center and hip range of motion. We calculate the extreme hip joint range of motion centered on the hip joint center (HJC) that is located by an automatic calculation algorithm on 3D reconstructed surface models. We make 3D bone surface models from CT (Computer Tomography) or MRI (Magnetic Resonance Imaging). The medical objective is to quantify hip kinematics in function of hip morphology. Because extreme ranges of motions are evaluated from bones only, we can estimate the motions that are restricted by bones impingements by comparing the computed values with real extreme range of motion.