A mathematical model of the compression of a spinal disc

  • Received: 01 January 2010 Accepted: 29 June 2018 Published: 01 August 2011
  • MSC : Primary: 74F10, 74L15, 92C10; Secondary: 92B05.

  • A model is developed of the stress-strain response of an intervertebral disc to axial compression. This is based on a balance of increased intradiscal pressure, resulting from the compression of the disc, and the restraining forces generated by the collagen fibres within the annulus fibrosus. A formula is derived for predicting the loading force on a disc once the nucleus pressure is known. Measured material values of L3 and L4 discs are used to make quantitative predictions. The results compare reasonably well with experimental results.

    Citation: Matthias Ngwa, Ephraim Agyingi. A mathematical model of the compression of a spinal disc[J]. Mathematical Biosciences and Engineering, 2011, 8(4): 1061-1083. doi: 10.3934/mbe.2011.8.1061

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  • A model is developed of the stress-strain response of an intervertebral disc to axial compression. This is based on a balance of increased intradiscal pressure, resulting from the compression of the disc, and the restraining forces generated by the collagen fibres within the annulus fibrosus. A formula is derived for predicting the loading force on a disc once the nucleus pressure is known. Measured material values of L3 and L4 discs are used to make quantitative predictions. The results compare reasonably well with experimental results.


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    2. Sébastien DEMERS, Sylvie NADEAU, Abdel-Hakim BOUZID, Analytical evaluation of stresses and displacements of an intervertebral disc, 2017, 12, 1880-9863, 16-00675, 10.1299/jbse.16-00675
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  • © 2011 the Author(s), licensee AIMS Press. This is an open access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0)
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