Table 6 Correlation between the amount of urinary leakage by the 1-h pad test and pre- or post-operative membranous urethral length or the change in MU diameter on cine MRI parameters after RARP.
After RARP | 1 month | 3 months | 6 months | 9 months | 12 months | |||||
|---|---|---|---|---|---|---|---|---|---|---|
β (95% CI) | p-value | β (95% CI) | p-value | β (95% CI) | p-value | β (95% CI) | p-value | β (95% CI) | p-value | |
Simple regression analysis | ||||||||||
Preoperative MUL | − 0.27 (− 0.43 to − 0.12) | < 0.05 | − 0.27 (− 0.42 to − 0.11) | < 0.05 | − 0.19 (− 0.33 to − 0.04) | < 0.05 | − 0.16 (− 0.30 to − 0.02) | < 0.05 | − 0.19 (− 0.32 to − 0.05) | < 0.01 |
Postoperative MUL | 0.14 (− 0.06–0.25) | 0.11 | 0.13 (− 0.14–0.30) | 0.13 | 0.09 (− 0.07–0.28) | 0.33 | − 0.02 (− 0.14–0.03) | 0.30 | 0.10 (− 0.02–0.32) | 0.30 |
Change in MU diameter | − 98.9 (− 132.6 to − 65.4) | < 0.001 | − 81.1(− 100.5 to − 61.7) | < 0.001 | -69.7 (− 90.9 to − 48.5) | < 0.001 | − 48.0 (− 66.3 to − 29.6) | < 0.001 | − 46.2 (− 63.5 to − 28.9) | < 0.001 |
Multiple regression analysis | ||||||||||
Preoperative MUL | 0.03 (− 0.17–0.23) | 0.78 | 0.10 (− 0.08–0.29) | 0.27 | 0.09 (− 0.09–0.25) | 0.33 | 0.16 (− 0.01–0.33) | 0.07 | 0.09 (− 0.08–0.25) | 0.30 |
Postoperative MUL | ||||||||||
Change in MU diameter | − 98.7 (− 142.2 to − 55.2) | < 0.001 | − 70.6 (− 95.1 to − 46.1) | < 0.001 | − 60.2 (− 86.9 to − 33.4) | < 0.001 | − 40.2 (− 63.5 to − 16.9) | < 0.001 | − 45.3 (− 67.5 to − 23.2) | < 0.001 |
