Effect of instrumented fusion on the biomechanics of adjacent segment - an in vivo canine study

Tae Hong Lim, Avinash G. Patwardhan, Jung Hwa Hong, Howard S. An, Lee H Riley, Scott Hodges, Michael R. Zindrick

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

A canine in vivo study was performed to investigate if spinal fusion with instrumentation causes significant changes in the viscoelastic properties of the intervertebral disc above the fused segment. Load-displacement behavior of the lumbar spine measured by the flexibility test showed that a solid fusion occurred across the L5 to L7 segments, although no fusion occurred at L7-S1 segment. No visual change of disc degeneration was found in the L4-5 intervertebral disc of the experimental group as compared to the control group. Relaxation and cyclic loading tests demonstrated no significant changes in the viscoelastic properties of the L4-5 intervertebral disc between the control and experimental groups. These results showed that fusion of the L5-L7 segments did not significantly affect the viscoelastic properties of the adjacent L4-5 intervertebral disc at the end of 30 weeks.

Original languageEnglish (US)
Title of host publicationAmerican Society of Mechanical Engineers, Bioengineering Division (Publication) BED
EditorsM.C. Boyce
PublisherASME
Pages93-94
Number of pages2
Volume31
StatePublished - 1995
Externally publishedYes
EventProceedings of the 1995 ASME International Mechanical Congress and Exposition - San Francisco, CA, USA
Duration: Nov 12 1995Nov 17 1995

Other

OtherProceedings of the 1995 ASME International Mechanical Congress and Exposition
CitySan Francisco, CA, USA
Period11/12/9511/17/95

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Biomechanics
Fusion reactions

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Lim, T. H., Patwardhan, A. G., Hong, J. H., An, H. S., Riley, L. H., Hodges, S., & Zindrick, M. R. (1995). Effect of instrumented fusion on the biomechanics of adjacent segment - an in vivo canine study. In M. C. Boyce (Ed.), American Society of Mechanical Engineers, Bioengineering Division (Publication) BED (Vol. 31, pp. 93-94). ASME.

Effect of instrumented fusion on the biomechanics of adjacent segment - an in vivo canine study. / Lim, Tae Hong; Patwardhan, Avinash G.; Hong, Jung Hwa; An, Howard S.; Riley, Lee H; Hodges, Scott; Zindrick, Michael R.

American Society of Mechanical Engineers, Bioengineering Division (Publication) BED. ed. / M.C. Boyce. Vol. 31 ASME, 1995. p. 93-94.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Lim, TH, Patwardhan, AG, Hong, JH, An, HS, Riley, LH, Hodges, S & Zindrick, MR 1995, Effect of instrumented fusion on the biomechanics of adjacent segment - an in vivo canine study. in MC Boyce (ed.), American Society of Mechanical Engineers, Bioengineering Division (Publication) BED. vol. 31, ASME, pp. 93-94, Proceedings of the 1995 ASME International Mechanical Congress and Exposition, San Francisco, CA, USA, 11/12/95.
Lim TH, Patwardhan AG, Hong JH, An HS, Riley LH, Hodges S et al. Effect of instrumented fusion on the biomechanics of adjacent segment - an in vivo canine study. In Boyce MC, editor, American Society of Mechanical Engineers, Bioengineering Division (Publication) BED. Vol. 31. ASME. 1995. p. 93-94
Lim, Tae Hong ; Patwardhan, Avinash G. ; Hong, Jung Hwa ; An, Howard S. ; Riley, Lee H ; Hodges, Scott ; Zindrick, Michael R. / Effect of instrumented fusion on the biomechanics of adjacent segment - an in vivo canine study. American Society of Mechanical Engineers, Bioengineering Division (Publication) BED. editor / M.C. Boyce. Vol. 31 ASME, 1995. pp. 93-94
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abstract = "A canine in vivo study was performed to investigate if spinal fusion with instrumentation causes significant changes in the viscoelastic properties of the intervertebral disc above the fused segment. Load-displacement behavior of the lumbar spine measured by the flexibility test showed that a solid fusion occurred across the L5 to L7 segments, although no fusion occurred at L7-S1 segment. No visual change of disc degeneration was found in the L4-5 intervertebral disc of the experimental group as compared to the control group. Relaxation and cyclic loading tests demonstrated no significant changes in the viscoelastic properties of the L4-5 intervertebral disc between the control and experimental groups. These results showed that fusion of the L5-L7 segments did not significantly affect the viscoelastic properties of the adjacent L4-5 intervertebral disc at the end of 30 weeks.",
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