Lumbosacral plexus stretch injury following the use of the modified lithotomy position.

The modified lithotomy position is used to provide simultaneous operative exposure to the abdomen and perineum. We report 3 lumbosacral plexus complications following use of this position. A mechanism involving stretch secondary to hyperabduction seems most likely. Electromyography is helpful in the diagnosis and the prognosis seems to be good.