Fig. 7

Survival plot indicating the recovery of potency between completely intrafascial group and conventionally interfascial group. Survival analysis was conducted to compare the recovery of potency between the 2 groups. The end-point event was set as patients achieving normal sexual function (IIEF-5 score > 21) or mild erectile dysfunction (IIEF-5 score = 12–21) after the surgery. This figure showed that patients in the intrafascial group had faster recovery duration with a median survival time of 2.8 months when compared with that in the control group with a median survival time of 7.9 months. The Kaplan–Meier method was used, and statistically significant difference was set at p = 0.049