A three-dimensional finite element model of an intact ligamentous lumbar motion segment (L3-4) was used to predict stresses in the pars interarticularis regions of the modeled vertebral bodies. The changes in stresses following disk excision, as compared to the intact model, also were computed. The predicted results show an increase in stresses in the posterior bony elements following disk excision. In some patients over a long period of time this increase in stresses, in association with other clinical factors, may lead to bony hypertrophy of the structures that surround the nerve roots. Ultimately, over a long period of time the increase in pressure on the entrapped nerve root may induce recurrent pain and other complications reported in the literature.
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November 1990
Technical Briefs
Possible Role of Stresses in Inducing Spinal Stenosis—A Long Term Complication Following Disk Excision
Vijay K. Goel,
Vijay K. Goel
Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242
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Young E. Kim,
Young E. Kim
Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242
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Tae-H. Lim
Tae-H. Lim
Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242
Search for other works by this author on:
Vijay K. Goel
Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242
Young E. Kim
Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242
Tae-H. Lim
Department of Biomedical Engineering, University of Iowa, Iowa City, IA 52242
J Biomech Eng. Nov 1990, 112(4): 478-481 (4 pages)
Published Online: November 1, 1990
Article history
Received:
August 3, 1989
Revised:
July 15, 1990
Online:
March 17, 2008
Citation
Goel, V. K., Kim, Y. E., and Lim, T. (November 1, 1990). "Possible Role of Stresses in Inducing Spinal Stenosis—A Long Term Complication Following Disk Excision." ASME. J Biomech Eng. November 1990; 112(4): 478–481. https://doi.org/10.1115/1.2891215
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