Finite element analysis of the influence of loading rate on a model of the full lumbar spine under dynamic loading conditions.

Medical & Biological Engineering & Computing
Eric WagnacCarl-Eric Aubin

Abstract

Despite an increase in the number of experimental and numerical studies dedicated to spinal trauma, the influence of the rate of loading or displacement on lumbar spine injuries remains unclear. In the present work, we developed a bio-realistic finite element model (FEM) of the lumbar spine using a comprehensive geometrical representation of spinal components and material laws that include strain rate dependency, bone fracture, and ligament failure. The FEM was validated against published experimental data and used to compare the initiation sites of spinal injuries under low (LD) and high (HD) dynamic compression, flexion, extension, anterior shear, and posterior shear. Simulations resulted in force-displacement and moment-angular rotation curves well within experimental corridors, with the exception of LD flexion where angular stiffness was higher than experimental values. Such a discrepancy is attributed to the initial toe-region of the ligaments not being included in the material law used in the study. Spinal injuries were observed at different initiation sites under LD and HD loading conditions, except under shear loads. These findings suggest that the strain rate dependent behavior of spinal components plays a significant ...Continue Reading

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Citations

Apr 30, 2013·Medical & Biological Engineering & Computing·Yanfang ZhaoYulu Wu
Oct 30, 2013·Medical & Biological Engineering & Computing·Léo FradetPierre-Jean Arnoux
Sep 27, 2015·Journal of the Mechanical Behavior of Biomedical Materials·Tanvir MustafyMarwan El-Rich
Feb 26, 2013·IEEE Transactions on Bio-medical Engineering·Nadine Michèle LalondePierre-Jean Arnoux
Jun 18, 2016·Medical & Biological Engineering & Computing·Christiane CaouetteCarl-Éric Aubin
Jul 15, 2017·Proceedings of the Institution of Mechanical Engineers. Part H, Journal of Engineering in Medicine·Marien CouvertierPhilippe Rigoard
Jun 1, 2018·Applied Bionics and Biomechanics·Jiajia ZhengJingwen Hu
Apr 11, 2020·Spine Deformity·Léo FradetCarl-Éric Aubin
Jun 22, 2018·European Spine Journal : Official Publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society·Manon SterbaCarl-Éric Aubin
May 29, 2020·Computer Methods in Biomechanics and Biomedical Engineering·Marie-Hélène BeauséjourEric Wagnac
Dec 29, 2020·Journal of Advanced Research·S Sivasankari, Venkatesh Balasubramanian
Feb 24, 2021·Journal of Orthopaedic Research : Official Publication of the Orthopaedic Research Society·Roxanne Dubé-CyrCarl-Éric Aubin
Mar 30, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Dale L RobinsonPeter Vee Sin Lee
Feb 4, 2019·The Journal of Prosthetic Dentistry·Guillermo de la Rosa CastoloMichel Behr
Dec 24, 2019·Forensic Science International : Synergy·Lucile TuchtanLionel Thollon
Oct 15, 2020·Asian Journal of Endoscopic Surgery·Yoshihiro KitahamaHideaki Miyake
Jul 1, 2020·Computer Methods and Programs in Biomedicine·Sivasankari Sivasankari, Venkatesh Balasubramanian

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