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Adaptive remodeling at the pedicle due to pars fracture: a finite element analysis study.

Authors
  • İnceoğlu, Serkan1
  • Mageswaran, Prasath
  • Modic, Michael T
  • Benzel, Edward C
  • 1 Orthopedic Biomechanics Laboratory, Loma Linda University, Loma Linda, California; and.
Type
Published Article
Journal
Journal of neurosurgery. Spine
Publication Date
Sep 01, 2014
Volume
21
Issue
3
Pages
475–480
Identifiers
DOI: 10.3171/2014.5.SPINE13860
PMID: 24949902
Source
Medline
Keywords
License
Unknown

Abstract

The authors' results indicated that a pars fracture results in sclerotic changes in the contralateral pedicle. Such a remodeling process could increase overall bone mass. However, focal bone loss in the region of the cancellous bone of the pedicle might predispose the pedicle to microfractures. This phenomenon explains, at least in part, the origin of pedicle stress fractures in the sclerotic contralateral pedicles of patients with unilateral spondylolysis.

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