We report the case of a 43-year-old woman who underwent knee arthroscopy. P
ostoperatively, she developed a lesion of the common peroneal nerve, which
was confirmed by neurophysiological studies. Exploration showed the nerve t
o be in continuity and externally undamaged. At review 17 months later, the
re was incomplete recovery. We believe this lesion was caused by a traction
injury related to patient positioning, which has not been reported previou
sly.