Table 3.
Postoperative pathologic outcomes
| Laparoscopic anterior resection (n = 146) | Robotic anterior resection (n = 34) | p value | |
|---|---|---|---|
| TNM stage: n (%) | 0.185 | ||
| 1 | 52 (35.6) | 14 (41.2) | |
| 2 | 36 (24.7) | 12 (35.3) | |
| 3 | 58 (39.7) | 8 (23.5) | |
| T stage: n (%) | 0.954 | ||
| 1 | 38 (26.0) | 9 (26.5) | |
| 2 | 24 (16.4) | 5 (14.7) | |
| 3 | 78 (53.4) | 19 (55.9) | |
| 4 | 6 (4.1) | 1 (2.9) | |
| N stage: n (%) | 0.233 | ||
| 0 | 89 (61.0) | 26 (76.5) | |
| 1 | 48 (32.9) | 7 (20.6) | |
| 2 | 9 (6.1) | 1 (2.9) | |
| Mean harvested lymph nodes: n (range) | |||
| All stage | 16.5 ± 11.3 (2–56) | 12.0 ± 7.9 (1–31) | 0.031 |
| Stage 1 | 13.1 ± 11.9 (2–56) | 7.7 ± 5.8 (1–21) | 0.080 |
| Stage 2 | 18.2 ± 8.8 (5–46) | 15.5 ± 8.4 (3–26) | 0.404 |
| Stage 3 | 18.5 ± 11.5 (4–52) | 14.4 ± 8.1 (5–46) | 0.387 |
| Mean PRM: cm (range) | 8.2 ± 2.9 (3–19) | 10.7 ± 3.4 (3.5–35) | 0.026 |
| Mean DRM: cm (range) | 4.9 ± 2.8 (1–25) | 5.4 ± 3.4 (1–20) | 0.452 |
TNM tumor node metastasis, PRM proximal margin, DRM distal margin