Full Content is available to subscribers

Subscribe/Learn More  >

Effect of Corpectomy and Discectomy Fusion Procedures on the Stability of Multi-Level Cervical Construct With Anterior Rigid Screw-Plate Fixation: A Finite Element Model Study

[+] Author Affiliations
Mozammil Hussain, Gunnar B. J. Andersson, Howard S. An

Rush University Medical Center, Chicago, IL

Ahmad N. Nassr

University of Pittsburgh, Pittsburgh, PA

Raghu N. Natarajan

Rush University Medical Center, Chicago, ILUniversity of Illinois at Chicago, Chicago, IL

Paper No. SBC2007-176731, pp. 435-436; 2 pages
  • ASME 2007 Summer Bioengineering Conference
  • ASME 2007 Summer Bioengineering Conference
  • Keystone, Colorado, USA, June 20–24, 2007
  • Conference Sponsors: Bioengineering Division
  • ISBN: 0-7918-4798-5
  • Copyright © 2007 by ASME


Cervical fusion is a traditional surgical technique in the management of spondylotic pathologies. An increased rate of arthrodesis has been well stated in the literature by using anterior and/or posterior instrumentation. Despite excellent results for the multi-level cervical fusions, failures due to the pseudarthrosis, graft dislodgement, migration and screw loosening were reported. These failures were also found to be directly proportional to the number of fused levels. The multi-level fusions with a single strut graft (corpectomy) have only two graft-endplate interfaces and a lower rate of pseudarthrosis failures. But it has a longer lever arm and moment, thus disrupting the normal sagittal alignment of the cervical spine. On the other hand, the multi-level fusion with multiple inter-body grafts (discectomy) maintains the sagittal alignment, but a higher rate of pseudarthrosis failures were expected due to a large number of graft-endplate interfaces. Some investigators have advocated a combination of corpectomy and discectomy, while others believe to perform either one of them due to the individual advantages and disadvantages as per their patient needs. Consequently, a dilemma and controversy still exists in the selection of the type of reconstructive fusion technique. The objective of the present study was to compare the biomechanical stability of the three reconstructive fusion techniques — corpectomy, discectomy and combined corpectomy-discectomy. The stability of the superior motion segment was compared to the inferior motion segment to determine the direction of propagation of the adjacent segment disease.

Copyright © 2007 by ASME



Interactive Graphics


Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In