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Stress Changes in Intervertebral Discs of the Cervical Spine After Arthrodesis

[+] Author Affiliations
Abraham Tchako, Ali Sadegh

City College of the City University of New York, New York, NY

Paper No. IMECE2002-32627, pp. 385-386; 2 pages
doi:10.1115/IMECE2002-32627
From:
  • ASME 2002 International Mechanical Engineering Congress and Exposition
  • Advances in Bioengineering
  • New Orleans, Louisiana, USA, November 17–22, 2002
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-3650-9 | eISBN: 0-7918-1691-5, 0-7918-1692-3, 0-7918-1693-1
  • Copyright © 2002 by ASME

abstract

An improved and detailed 3D FE model of human cervical spine model was created using digitized geometric measurement tool. The vertebral bodies of the model were fused at three locations. The unfused and the fused models were physiologically loaded and the changes in stresses in intervertebral discs were compared. A moment of 1.5 Nm was used in combination with a 50 N compressive preload. The results showed that the lower cervical spine fusion induces the most stress changes in the neighboring discs.

Copyright © 2002 by ASME

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