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The Effect of Creep on Human Lumbar Intervertebral Disc Impact Mechanics

[+] Author Affiliations
David Jamison, IV, Michele Marcolongo

Drexel University, Philadelphia, PA

Paper No. SBC2013-14176, pp. V01AT16A002; 2 pages
doi:10.1115/SBC2013-14176
From:
  • ASME 2013 Summer Bioengineering Conference
  • Volume 1A: Abdominal Aortic Aneurysms; Active and Reactive Soft Matter; Atherosclerosis; BioFluid Mechanics; Education; Biotransport Phenomena; Bone, Joint and Spine Mechanics; Brain Injury; Cardiac Mechanics; Cardiovascular Devices, Fluids and Imaging; Cartilage and Disc Mechanics; Cell and Tissue Engineering; Cerebral Aneurysms; Computational Biofluid Dynamics; Device Design, Human Dynamics, and Rehabilitation; Drug Delivery and Disease Treatment; Engineered Cellular Environments
  • Sunriver, Oregon, USA, June 26–29, 2013
  • Conference Sponsors: Bioengineering Division
  • ISBN: 978-0-7918-5560-7
  • Copyright © 2013 by ASME

abstract

The intervertebral disc (IVD) is often modeled as a biphasic tissue, with both a solid and a fluid phase [1]. While under a constant compressive load, the IVD responds with continuous creep displacement, resulting in the loss of interstitial fluid from the tissue and increased strain on the annular fibers. The mechanical response of the IVD under impact loading conditions has been previously reported by the authors and others. It is unknown, however, how the loss of interstitial fluid affects disc biomechanics under impact loads. In this study, we investigate the effects of creep on IVD impact mechanics.

Copyright © 2013 by ASME

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