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Straightened cervical lordosis causes stress concentration: a finite element model study

Abstract

In this study, we propose a finite element analysis of the complete cervical spine with straightened and normal physiological curvature by using a specially designed modelling system. An accurate finite element model is established to recommend plausible approaches to treatment of cervical spondylosis through the finite element analysis results. There are few reports of biomechanics influence of the straightened cervical curve. It is difficult to measure internal responses of cervical spine directly. However, the finite element method has been reported to have the capability to quantify both external and internal responses to mechanical loading, such as the strain and stress distribution of spinal components. We choose a subject with a straightened cervical spine from whom to collect the CT scan data, which formed the basis of the finite element analysis. By using a specially designed modelling system, a high quality finite element model of the complete cervical spine with straightened curvature was generated, which was then mapped to reconstruct a normal physiological curvature model by a volumetric mesh deformation method based on discrete differential properties. Then, the same boundary conditions were applied to do a comparison. The result demonstrated that the active movement range of straightened cervical spine decreased by  More>>
Authors:
Wei, Wei; Shi, Shiyuan; Fei, Jun; Wang, Yifan; Chen, Chunyue; [1]  Liao, Shenhui [2] 
  1. Hangzhou Red Cross Hospital, Hangzhou, Zhejiang, (China)
  2. School of Information Science and Engineering, Central South University, Changsha, Hunan (China)
Publication Date:
Mar 15, 2013
Product Type:
Journal Article
Resource Relation:
Journal Name: Australasian Physical and Engineering Sciences in Medicine; Journal Volume: 36; Journal Issue: 1; Other Information: 3 figs., 3 tabs.
Subject:
62 RADIOLOGY AND NUCLEAR MEDICINE; BIOLOGICAL STRESS; CAT SCANNING; COMPUTERIZED TOMOGRAPHY; FINITE ELEMENT METHOD; IMAGES; PHYSIOLOGY; SPINAL CORD; SPONDYLITIS; VERTEBRAE
OSTI ID:
22321194
Country of Origin:
Australia
Language:
English
Other Identifying Numbers:
Journal ID: ISSN 0158-9938; TRN: AU1500331027396
Availability:
Available from http://rd.springer.com/article/10.1007/s13246-013-0182-4
Submitting Site:
INIS
Size:
page(s) 27-33
Announcement Date:
Apr 03, 2015

Citation Formats

Wei, Wei, Shi, Shiyuan, Fei, Jun, Wang, Yifan, Chen, Chunyue, and Liao, Shenhui. Straightened cervical lordosis causes stress concentration: a finite element model study. Australia: N. p., 2013. Web. doi:10.1007/s13246-013-0182-4.
Wei, Wei, Shi, Shiyuan, Fei, Jun, Wang, Yifan, Chen, Chunyue, & Liao, Shenhui. Straightened cervical lordosis causes stress concentration: a finite element model study. Australia. doi:10.1007/s13246-013-0182-4.
Wei, Wei, Shi, Shiyuan, Fei, Jun, Wang, Yifan, Chen, Chunyue, and Liao, Shenhui. 2013. "Straightened cervical lordosis causes stress concentration: a finite element model study." Australia. doi:10.1007/s13246-013-0182-4. https://www.osti.gov/servlets/purl/10.1007/s13246-013-0182-4.
@misc{etde_22321194,
title = {Straightened cervical lordosis causes stress concentration: a finite element model study}
author = {Wei, Wei, Shi, Shiyuan, Fei, Jun, Wang, Yifan, Chen, Chunyue, and Liao, Shenhui}
abstractNote = {In this study, we propose a finite element analysis of the complete cervical spine with straightened and normal physiological curvature by using a specially designed modelling system. An accurate finite element model is established to recommend plausible approaches to treatment of cervical spondylosis through the finite element analysis results. There are few reports of biomechanics influence of the straightened cervical curve. It is difficult to measure internal responses of cervical spine directly. However, the finite element method has been reported to have the capability to quantify both external and internal responses to mechanical loading, such as the strain and stress distribution of spinal components. We choose a subject with a straightened cervical spine from whom to collect the CT scan data, which formed the basis of the finite element analysis. By using a specially designed modelling system, a high quality finite element model of the complete cervical spine with straightened curvature was generated, which was then mapped to reconstruct a normal physiological curvature model by a volumetric mesh deformation method based on discrete differential properties. Then, the same boundary conditions were applied to do a comparison. The result demonstrated that the active movement range of straightened cervical spine decreased by 24–33 %, but the stress increased by 5–95 %. The stress was concentrated at the facet joint cartilage, uncovertebral joint and the disk. The results suggest that cervical lordosis may have a direct impact on cervical spondylosis treatment. These results may be useful for clinical treatment of cervical spondylosis with straightened curvature.}
doi = {10.1007/s13246-013-0182-4}
journal = {Australasian Physical and Engineering Sciences in Medicine}
issue = {1}
volume = {36}
journal type = {AC}
place = {Australia}
year = {2013}
month = {Mar}
}