Relationship among level of distraction, evoked potentials, spinal cord ischemia and integrity, and clinical status in animals

Jeffrey H. Owen, Masatoshi Naito, Keith H. Bridwell

Research output: Contribution to journalArticlepeer-review

29 Scopus citations

Abstract

Somatosensory evoked potentials (SEPs) and neurogenic-motor evoked potentials (NMEPs) were recorded after overdistraction of the spinal cord at T5-T6, T12-L1, or L3-L4. Measures of spinal cord perfusion and clinical status were also administered. Results indicated that stiffer spinal segments allowed less distraction than more flexible segments. SEPs and NMEPs were lost quickly after overdistraction in stiff segments and slowly in more flexible segments. However, SEPs were less sensitive than NMEPs to effects from overdistraction. Spinal cord perfusion and integrity were consistent with reduced perfusion and structural damage after overdistraction in stiff segments; extremely reduced perfusion but no structural changes in more flexible segments. The application of these results to the clinical situation was provided.

Original languageEnglish
Pages (from-to)852-857
Number of pages6
JournalSpine
Volume15
Issue number9
DOIs
StatePublished - Sep 1990

Keywords

  • Motor evoked potentials
  • Overdis-traction
  • Somatosensory evoked potentials
  • Spinal cord ischemia

Fingerprint

Dive into the research topics of 'Relationship among level of distraction, evoked potentials, spinal cord ischemia and integrity, and clinical status in animals'. Together they form a unique fingerprint.

Cite this