Table 3.
Comparison of the location of PSM sites between LRP and RARP.
| LRP (n = 250) | RARP (n = 450) | Pvalue | ||
|---|---|---|---|---|
| PSM (%) | Total | 78 (31.2) | 93 (20.7) | 0.002 |
| pT2a | 3/27 (11.1) | 2/41 (4.8) | 0.335 | |
| pT2b | 8/42 (19.0) | 11/69 (15.9) | 0.674 | |
| pT2c | 30/120 (25.0) | 26/201 (12.9) | 0.006 | |
| pT3a | 27/45 (60.0) | 41/111 (36.9) | 0.009 | |
| pT3b | 9/14 (64.3) | 12/26 (46,2) | 0.027 | |
| pT4 | 1/2 (50.0) | 1/1 (100) | 0.667 | |
| Sites of PSM (%) | Base | 33 (6.7) | 29 (6.4) | 0.003 |
| Lateral lobe | 62 (13) | 23 (5.1) | <0.0001 | |
| Apex | 136 (28) | 45 (10.0) | <0.0001 | |
| Anterior | 5 (1) | 4 (0.8) | 0.183 | |
| Posterior | 3 (0.6) | 1 (0.2) | 0.133 | |
| Fat tissues | 2 (0.4) | 5 (1.1) | 0.516 | |
| Seminal vesicle | 1 (0.2) | 6 (1.3) | 0.22 | |
LRP, laparoscopic radical prostatectomy; RARP, robot-assisted radical prostatectomy; PSA, prostate-specific antigen.