1. Julius Wolff Institut, Charité – Universitätsmedizin Berlin, Berlin, Germany;2. Institute of Orthopaedic Research and Biomechanics, University of Ulm, Ulm, Germany;3. École Polytechnique, Montréal, Canada
Abstract:
Anterior shear has been implicated as a risk factor in spinal injuries. A 3D nonlinear poroelastic finite element model study of a lumbar motion segment L4-L5 was performed to predict the temporal shear response under various single and combined shear loads. Effects of nucleotomy and facetectomy as well as changes in the posture and facet gap distance were analyzed as well.