Motor evoked potential as a reliable method to verify the conductivity of anterior spinal roots in brachial plexus surgery: an experimental study on goats.

The goal of this experimental study was to confirm the reliability of motor evoked potential (MEP) in testing the function of anterior motor roots in brachial plexus surgery. On central stimulation, nerve compound action potentials (NCAPs) are registered from the exposed spinal nerves. If NCAPs can be recorded, the anterior root is considered to be intact.