Use of nerve stimulator for simple and accurate obturator nerve block before transurethral resection.

Adductor contraction from obturator nerve stimulation occurs frequently in certain situations during transurethral operations. Bladder perforation is a common result. A simple and safe technique involving use of a nerve stimulator for accurate obturator blockade is described. There have been no adductor contractions in more than 275 transurethral resections during a 2-year interval. There were no complications from the block itself or use of the nerve stimulator.