Simulation of normal pelvic mobilities in building an MRI-validated biomechanical model.

ABSTRACT

INTRODUCTION AND HYPOTHESIS: Three-dimensional modeling of feminine pelvic mobility is difficult because the sustaining system is not well understood and ligaments are especially difficult to identify on imaging. METHODS: We built a 3-D numerical model of the pelvic cavity, based on magnetic resonance (MR) images and knowledge about anatomy and validated it systematically. RESULTS: The quantitative results of this model allow for the non-destructive localization of the structures involved in pelvic statics. With a better configuration of the functional pelvis and topological criteria, we can obtain a coherent anatomical and functional model. CONCLUSIONS: This model is the first step in developing a tool to localize and characterize pelvic imbalance in patients.