Parametric equations to represent the profile of the human intervertebral disc in the transverse plane

Little, J. Paige, Pearcy, Mark J., & Pettet, Graeme J. (2007) Parametric equations to represent the profile of the human intervertebral disc in the transverse plane. Medical and Biological Engineering and Computing, 45(10), pp. 939-945.

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Computational and finite element models of the spine are used to investigate spine and disc mechanics. Subject specific data for the transverse profile of the disc could improve the geometric accuracy of these models. The current study aimed to develop a mathematical algorithm to describe the profile of the disc components, using subject-specific data points. Using data points measured from pictures of human intervertebral discs sectioned in the transverse plane, parametric formulae were derived that mapped the outer profile of the anulus and nucleus. The computed anulus and nucleus profile were a similar shape to the discs from which they were derived. The computed total disc area was similar to the experimental data. The nucleus:disc area ratios were sensitive to the data points defined for each disc. The developed formulae can be easily implemented to provide patient specific data for the disc profile in computational models of the spine.

Impact and interest:

9 citations in Scopus
7 citations in Web of Science®
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ID Code: 11142
Item Type: Journal Article
Refereed: Yes
Additional Information: For more information, please refer to the journal’s website (see hypertext link) or contact the author.
Keywords: intervertebral disc, transverse profile, geometry, parametric, anulus boundary, nucleus boundary
DOI: 10.1007/s11517-007-0242-6
ISSN: 1741-0444
Subjects: Australian and New Zealand Standard Research Classification > ENGINEERING (090000) > BIOMEDICAL ENGINEERING (090300) > Biomedical Engineering not elsewhere classified (090399)
Divisions: Past > QUT Faculties & Divisions > Faculty of Built Environment and Engineering
Past > QUT Faculties & Divisions > Faculty of Science and Technology
Current > Institutes > Institute of Health and Biomedical Innovation
Copyright Owner: Copyright 2007 Springer
Copyright Statement: The original publication is available at SpringerLink
Deposited On: 19 Feb 2008 00:00
Last Modified: 29 Feb 2012 13:41

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