Reflex variability in selective dorsal rhizotomy

I. P. Weiss, S. J. Schiff

Research output: Contribution to journalArticlepeer-review

33 Scopus citations


The variability of reflex responses during selective dorsal rhizotomy was studied in eight children between the ages of 3 and 7 years. For a given dorsal root or rootlet, the electrical reflex threshold and response varied considerably when observed over several minutes. Changes in electrode pressure, mechanical dissection of the root, and reflex spatial facilitation were all found to contribute to the variability. Even when electrode pressure was held constant, intrinsic spinal cord reflex variability substantially weakened the predictability of the intraoperative selection method used during this surgery.

Original languageEnglish (US)
Pages (from-to)346-353
Number of pages8
JournalJournal of neurosurgery
Issue number3
StatePublished - 1993

All Science Journal Classification (ASJC) codes

  • Surgery
  • Clinical Neurology


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