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Results of statistical analysis
| Open surgery | Laparoscopic surgery | P | |
| Blood loss (mL) | 368 ± 105 | 133 ± 33 | 0.22 |
| Operation time (min) | 264 ± 59 | 225 ± 18 | 0.71 |
| Complication | 3/8 | 1/3 | 0.72 |
| Time to removal of drainage tube (d) | 8.2 ± 2.3 | 3.3 ± 0.3 | 0.23 |
| Postoperative hospital stays (d) | 15.5 ± 2.3 | 6.3 ± 0.3 | 0.006 |
