The nerves that help the penis become erect are about 3mm (1⁄8 inch) away from the prostate. At RPCI, the incidence of extra surgery for the treatment of erectile function following robot-assisted radical prostatectomy is 0.3 per “100 person-years.”
1. Hu JC, Gu X, Lipsitz SR et al. Comparative effectiveness of minimally invasive vs open radical prostatectomy JAMA 2009;302(14):1557-1564.