High-resolution direct microstimulation mapping of spinal cord motor pathways during resection of an intramedullary tumor

Ravi Gandhi, Corinne M. Curtis, Aaron A. Cohen-Gadol

Research output: Contribution to journalArticle

13 Scopus citations


Despite the use of advanced microsurgical techniques, resection of intramedullary tumors may result in significant postoperative deficits because of the vicinity or invasion of important functional tracts. Intraoperative monitoring of somatosensory evoked potentials and transcranial electrical motor evoked potentials has been used previously to limit such complications. Electromyography offers an opportunity for the surgeon to map the eloquent tissue associated with the tumor using intraoperative motor fiber stimulation. Similar to the use of cortical simulation in the resection of supratentorial gliomas, this technique can potentially advance the safety of intramedullary spinal cord tumor resection. The authors describe the use of intraoperative motor fiber tract stimulation to map the corticospinal tracts associated with an intramedullary tumor. This technique led to protection of these tracts during resection of the tumor.

Original languageEnglish (US)
Pages (from-to)205-210
Number of pages6
JournalJournal of Neurosurgery: Spine
Issue number2
StatePublished - Feb 2015



  • Brain mapping
  • Electrical stimulation
  • Microsurgical resection
  • Oncology
  • Spinal cord tumor

ASJC Scopus subject areas

  • Surgery
  • Neurology
  • Clinical Neurology

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