Table 2.
Clinical outcome data
| Conventional IHR (n = 272) | Robotic IHR (n = 404) | P ‡ | |
|---|---|---|---|
| Duration of surgery (min) * | |||
| Overall | 57.6 (54.0) | 56.2 (53.0) | 0.224§ |
| Unilateral hernia | 50.0 (47.0) | 48.4 (44.5) | 0.170§ |
| Bilateral hernia | 66.2 (62.0) | 65.0 (60.0) | 0.519§ |
| Intraoperative complications | 3 (1.1) | 5 (1.2) | 0.990 |
| In-hospital complications † | 0.230 | ||
| No complications | 260 (95.6) | 386 (95.5) | |
| Grade I | 1 (0.4) | 3 (0.7) | |
| Grade II | 7 (2.6) | 14 (3.5) | |
| Grade IIIa | 3 (1.1) | 0 (0) | |
| Grade IIIb | 1 (0.4) | 1 (0.2) | |
| Grade IV | 0 (0) | 0 (0) | |
| Grade V | 0 (0) | 0 (0) | |
| Postoperative urinary retention | 10 (3.7) | 14 (3.5) | P0.990 |
| Hospital stay | 0.014 | ||
| Outpatient treatment | 161 (59.2) | 283 (70.0) | |
| 1 night | 95 (34.9) | 102 (25.2) | |
| ≥2 nights | 16 (5.9) | 19 (4.7) | |
| Readmission | 9 (3.3) | 5 (1.2) | 0.095 |
| Follow-up at 4 weeks | |||
| Lost to follow-up | 9 (3.3) | 16 (4.0) | 0.834 |
| 4-week follow-up | n = 263 | n = 388 | |
| No complications | 215 (81.7) | 323 (83.2) | 0.673 |
| Seroma or haematoma | 35 (13.3) | 61 (15.7) | 0.431 |
| Wound infection | 8 (3.0) | 0 (0.0) | 0.001 |
| Other | 5 (1.9) | 4 (1.0) | 0.496 |
Values in parentheses are percentages unless indicated otherwise:
*values are mean (median).
†Grading according to Clavien–Dindo classification18. IHR, inguinal hernia repair.
‡Fisher's exact test, except
§Mann–Whitney U test.