NDLI: Evaluation of the role of ligaments, facets and disc nucleus in lower cervical spine under compression and sagittal moments using finite element method.

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Evaluation of the role of ligaments, facets and disc nucleus in lower cervical spine under compression and sagittal moments using finite element method.

Content Provider	Semantic Scholar
Copyright Year	2001
Abstract	Cervical spinal instability due to ligamentous injury, degenerated disc and facetectomy is a subject of great controversy. There is no analytical investigation reported on the biomechanical response of cervical spine in these respects. Parametric study on the roles of ligaments, facets, and disc nucleus of human lower cervical spine (C4-C6) was conducted for the very first time using noninvasive finite element method.A three-dimensional (3D) finite element (FE) model of the human lower cervical spine, consisted of 11,187 nodes and 7730 elements modeling the bony vertebrae, articulating facets, intervertebral disc, and associated ligaments, was developed and validated against the published data under three load configurations: axial compression; flexion; and extension. The FE model was further modified accordingly to investigate the role of disc, facets and ligaments in preserving cervical spine motion segment stability in these load configurations. The passive FE model predicted the nonlinear force displacement response of the human cervical spine, with increasing stiffness at higher loads. It also predicted that ligaments, facets or disc nucleus are crucial to maintain the cervical spine stability, in terms of sagittal rotational movement or redistribution of load. FE method of analysis is an invaluable application that can supplement experimental research in understanding the clinical biomechanics of the human cervical spine.
File Format	PDF HTM / HTML
Alternate Webpage(s)	http://www.ntu.edu.sg/home/mecteo/Journal/JP_03.pdf
PubMed reference number	11410380v1
Volume Number	23
Issue Number	3
Journal	Medical engineering & physics
Language	English
Access Restriction	Open
Subject Keyword	Abnormal degeneration Bone structure of spine Cell Nucleus Cervical spine Flexion, function Intervertebral disc structure Ligaments Neck Nerve compression syndrome Psychologic Displacement Sagittal plane Scientific Publication Structure of articular surface of bone research study
Content Type	Text
Resource Type	Article

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