Axisymmetric Poroelastic FE Modeling of Intervertebral Disc for Investigation of Lumbar Spine Biomechanics

Nikkhoo, Mohammad; Haghpanahi, Mohammad; Wang, J. L.; Parnianpour, Mohammad

doi:10.22041/ijbme.2011.13138

Document Type : Full Research Paper

Authors

¹ Ph.D Candidate, Biomechanics Research Lab, Faculty of Mechanical Engineering, Iran University of Science and Technology, Tehran, Iran. ]nstitute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan

² 2 Associate professor, Biomechanics Research Lab, Faculty of Mechanical Engineering, Iran University of Science and Technology

³ Professor, Institute of Biomedical Engineering, National Taiwan University

⁴ Professor, Industrial and Management Engineering Department, Hanyang University, Ansan, South Korea Biomechanics Research Lab, Faculty of Mechanical Engineering, Sharif University of Technology

10.22041/ijbme.2011.13138

Abstract

Prediction of the relationship between different types of mechanical loading and the failure of the intervertebral disc is so important to identify the risk factors which are difficult to study in vivo and in vitro. On the basis of finite element methods some of these issues may be overcome enabling more detailed assessment of the biomechanical behavior of the intervertebral disc. The objective of this paper is to develop a nonlinear axisymmetric poroelastic finite element model of lumbar motion segment and show its capability for studying the time-dependent response of disc. After comparison of the response of different models in quasi-static analysis, the poroelastic model of intervertebral disc is presented and the results of short-term, long-term creep tests and cyclic loading were investigated. The results of the poroelastic model are in agreement with experimental ones reported in the literature. Hence, this model can be used to study how different dynamic loading regimes are important as risk factors for initiation of intervertebral disc degeneration.

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Main Subjects

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Iranian Journal of Biomedical Engineering

Axisymmetric Poroelastic FE Modeling of Intervertebral Disc for Investigation of Lumbar Spine Biomechanics

References

References

Volume 5, Issue 1 - Serial Number 1
June 2011
Pages 21-32

Axisymmetric Poroelastic FE Modeling of Intervertebral Disc for Investigation of Lumbar Spine Biomechanics

References

References

Volume 5, Issue 1 - Serial Number 1June 2011Pages 21-32

Volume 5, Issue 1 - Serial Number 1
June 2011
Pages 21-32