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Modeling and Analysis of the Effect of Disc Degeneration, Artificial Disc Replacement and Spinal Fusion on the Biomechanics of the Lumbar Spine

[+] Author Affiliations
Andre P. Mazzoleni, Antonio Gonzalez, David Padgett

North Carolina State University, Raleigh, NC

Lloyd A. Hey

The Hey Clinic for Scoliosis and Spine Surgery, Raleigh, NC

Paper No. IMECE2008-66522, pp. 287-295; 9 pages
doi:10.1115/IMECE2008-66522
From:
  • ASME 2008 International Mechanical Engineering Congress and Exposition
  • Volume 2: Biomedical and Biotechnology Engineering
  • Boston, Massachusetts, USA, October 31–November 6, 2008
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-4863-0 | eISBN: 978-0-7918-3840-2
  • Copyright © 2008 by ASME

abstract

This paper presents observations regarding the frequency response behavior of the lumbar spine. The frequency response ratio is calculated using a model of the spine which treats the vertebrae as cubic masses and the discs as systems of springs and dampers. The frequency response of the spinal model under healthy spine conditions is cataloged. The model is varied to simulate intervertebral disc degradation, spinal fusions, and artificial disc replacements, and the frequency response for these cases are calculated and compared with the response of the healthy spine.

Copyright © 2008 by ASME

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