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Comparison of in vivo and in vitro adjacent segment motion after lumbar fusion.

Authors
  • Dekutoski, M B
  • Schendel, M J
  • Ogilvie, J W
  • Olsewski, J M
  • Wallace, L J
  • Lewis, J L
Type
Published Article
Journal
Spine
Publisher
Ovid Technologies (Wolters Kluwer) - Lippincott Williams & Wilkins
Publication Date
Aug 01, 1994
Volume
19
Issue
15
Pages
1745–1751
Identifiers
PMID: 7973970
Source
Medline
License
Unknown

Abstract

Under "load" control, in vitro facet motion did not significantly change after immobilization, whereas under "displacement" control, the facet motion significantly increased from 2.2 +/- 0.4 mm to 4.1 +/- 0.6 mm. Post-instrumentation, in vivo L2-L3 facet motion increased significantly. This change in vivo related better to the changes seen in the in vitro "displacement" control test than to the in vitro "load" control test.

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