Biomechanical analysis of dancer's hip joint during extreme motions

Lazhari Assassi Anders Sandholm Nicolas Pronost
University of Geneva Ecole Polytechnique Fédérale de Lausanne Ecole Polytechnique Fédérale de Lausanne
MIRALab Virtual Reality Lab Virtual Reality Lab

Pascal Volino Daniel Thalmann Nadia Magnenat-Thalmann
University of Geneva Ecole Polytechnique Fédérale de Lausanne University of Geneva
MIRALab Virtual Reality Lab MIRALab

Computed stress peaks within the acetabular and femoral cartilages, and the high stress can be put in relationship with the location of observed lesions on the superior quadrant of the cartilages.

Abstract :

Overload on the hip joint is considered by medical experts as principal cause of hip joint osteoarthritis (OA) which is characterized by the degeneration of the articular cartilages. The aim of this study is to investigate the correlation between extreme movements and the development of early OA. Thus, the mechanical behavior of dancer’s hip joint under movements characterized by large anatomical angles of the leg is analyzed. Dynamics simulation based on patient specific model is used to assess the stress during these postures. The simulation results show a correlation between movements and stress depending on the applied load.

Keywords :

Simulation - Anatomical and kinematical modeling - Hip osteoarthritis - Extreme movements

Paper :
Paper from the Proceedings of 3D Anatomical Human Summer School 2010: