Posterior tibial somatosensory evoked potentials a comparative study of responses elicited by transcutaneous and percutaneous stimulation at the popliteal fossa.

Nine healthy volunteers underwent posterior tibial nerve stimulation at the popliteal fossa with recordings of averaged potentials being taken from the lumbar spine and cortex. Stimulation was attempted in all subjects both transcutaneously and percutaneously. A comparison of the responses to the two stimulating methods was made.