The Effect of the Electrical Acupuncture at Pudendal Nerve for Intermittent Claudication of the Lumbar Spinal Canal Stenosis

Abstract

We studied the clincal effect of the electrical acupuncture at pudendal nerve in four cases of lumbar spinal canal stenosis. The experimental effect of the direct electrical stimulation to the pudendal nerve on the blood flow of the sciatic nerve evaluated by Laser-Doppler flowmetry in anesthetized rats. Electrical acupuncture at pudendal nerve resulted in the improvement of the gait distance of all four cases. The specific effect of the electrical acupuncture at pudendal nerve was found in one case who did not show any improvement by the acupuncture at the intervertebral joint points. On one hand, the direct electrical stimulation to rats pudendal nerve resulted in the increase of the sciatic nerve blood flow, which were not evoked by administration of atropine. These results suggest that the electrical acupuncture at the pudensal nerve may be effective for the intermittent claudication of the lumbar spinal canal stenosis. The increased blood flow of the sciatic nerve may play one of the important roles in the effect via autonomic nervous system.