Electrophysiological evidence for afferent nerve fibers in human ventral roots.

Journal Article (Journal Article)

This study was designed to test the hypothesis that ventral roots in humans contain afferent nerve fibers. We made direct electrophysiological recordings of compound nerve action potentials in dorsal and ventral roots in children undergoing selective dorsal rhizotomy for spastic cerebral palsy. We stimulated the saphenous or sural nerves, which are pure sensory nerves, with electrical stimuli while systematically recording from ventral and dorsal roots from L3 to S2. In addition to the dorsal root nerve action potentials which we expected, we found smaller compound nerve action potentials, which were clearly afferent, in the ventral roots. This confirms the limited amount of experimental evidence that ventral roots do contain some afferent nerve fibers. The functional significance of these observations is not yet clear.

Full Text

Duke Authors

Cited Authors

  • Phillips, LH; Park, TS; Shaffrey, ME; Shaffrey, CL

Published Date

  • March 2000

Published In

Volume / Issue

  • 23 / 3

Start / End Page

  • 410 - 415

PubMed ID

  • 10679718

International Standard Serial Number (ISSN)

  • 0148-639X

Digital Object Identifier (DOI)

  • 10.1002/(sici)1097-4598(200003)23:3<410::aid-mus13>3.0.co;2-8


  • eng

Conference Location

  • United States