Chronic low back pain affects an estimated 15–65% of the U.S. population. Disc degeneration is often accredited as the origin of low back pain. With degeneration comes the breakdown of proteoglycans, loss of water content, and a decrease in the height of the intervertebral disc (IVD). These changes likely affect the disc’s viscoelastic response, making modeling and subsequent prediction of degeneration mechanics difficult. Unfortunately, much of the previous mechanical testing of IVD tissues has involved excision of the tissue and disruption of annular fibers. To gain insight into the in situ viscoelastic material properties, we have developed a new methodology of hybrid confined / in situ compression. This technique also allows for the quantification of the residual stress and strain that the IVD experiences in vivo and improved viscoelastic modeling parameters. Residual measurements, to the knowledge of the authors, have yet to be reported in previous studies. Therefore, the purpose of this study was to define the viscoelastic properties of the intact intervertebral disc as well as the residual stress/strain specific to degeneration grade and location.
Skip Nav Destination
ASME 2010 Summer Bioengineering Conference
June 16–19, 2010
Naples, Florida, USA
Conference Sponsors:
- Bioengineering Division
ISBN:
978-0-7918-4403-8
PROCEEDINGS PAPER
Intervertebral Disc Residual and Equilibrium Viscoelastic Parameters Specific to Location and Degeneration Severity
A. M. Ellingson,
A. M. Ellingson
University of Minnesota, Minneapolis, MN
Search for other works by this author on:
D. J. Nuckley
D. J. Nuckley
University of Minnesota, Minneapolis, MN
Search for other works by this author on:
A. M. Ellingson
University of Minnesota, Minneapolis, MN
D. J. Nuckley
University of Minnesota, Minneapolis, MN
Paper No:
SBC2010-19141, pp. 465-466; 2 pages
Published Online:
July 15, 2013
Citation
Ellingson, AM, & Nuckley, DJ. "Intervertebral Disc Residual and Equilibrium Viscoelastic Parameters Specific to Location and Degeneration Severity." Proceedings of the ASME 2010 Summer Bioengineering Conference. ASME 2010 Summer Bioengineering Conference, Parts A and B. Naples, Florida, USA. June 16–19, 2010. pp. 465-466. ASME. https://doi.org/10.1115/SBC2010-19141
Download citation file:
4
Views
Related Proceedings Papers
Related Articles
Modeling Degenerative Disk Disease in the Lumbar Spine: A Combined Experimental, Constitutive, and Computational Approach
J Biomech Eng (October,2012)
Related Chapters
Characterization of Tissue Viscoelasticity from Shear Wave Speed Dispersion
Biomedical Applications of Vibration and Acoustics in Imaging and Characterizations
Automated High-Temperature Testing of Ceramic Fiber Board
Compression Testing of Homogeneous Materials and Composites
Linear Viscoelasticity
Introduction to Plastics Engineering