A Finite Element Model Technique to Determine the Mechanical Response of a Lumbar Spine Segment Under Complex Load

• Autores: Alexander Tsouknidas, Georgios Kapetanos, Nikolaos Michailidis, Konstantinos-Dionysios Bouzakis, Savvas Savvakis, Kleovoulos Anagnostidis
• Localización: Journal of applied biomechanics, ISSN-e 1543-2688, ISSN 1065-8483, Vol. 28, Nº. 4, 2012, págs. 448-456
• Idioma: inglés
• Texto completo no disponible (Saber más ...)
• Resumen

  • This study presents a CT-based finite element model of the lumbar spine taking into account all functionrelated boundary conditions, such as anisotropy of mechanical properties, ligaments, contact elements, mesh size, etc. Through advanced mesh generation and employment of compound elements, the developed model is capable of assessing the mechanical response of the examined spine segment for complex loading conditions, thus providing valuable insight on stress development within the model and allowing the prediction of critical loading scenarios. The model was validated through a comparison of the calculated force-induced inclination/ deformation and a correlation of these data to experimental values. The mechanical response of the examined functional spine segment was evaluated, and the effect of the loading scenario determined for both vertebral bodies as well as the connecting intervertebral disc.