Fig. 6

Comparison between completely intrafascial and conventionally interfascial groups regarding post-surgical IIEF-5 score change from baseline. This figure showed the changes in the IIEF-5 score from that at the baseline, only the data at 1-month failed to show any significant difference between the 2 groups. Mean change of IIEF-5 score from pre-surgical baseline in the inferred group was − 4.9 ± 4.5 at 3-month, − 3.7 ± 3.7 at 6-month, − 2.4 ± 3.5 at 9-month, and − 1.7 ± 3.4 at 12-month after cystectomy, which was significantly higher than that of patients in the control group