Table 2.
Operative Related Data Comparing Between Mini-Invasive (M) and Conventional (C) Groups
| Characteristics | M (n=14) | C (n=22) | P |
|---|---|---|---|
| Preoperative embolism | |||
| Yes | 2 | 2 | 0.634 |
| No | 12 | 20 | |
| Operative time | 243±13 | 247±11 | 0.822 |
| Complications | |||
| Urinary infection | 0 | 1 | 0.418 |
| Dural tear | 2 | 1 | 0.547 |
| Screw displacement | 1 | 0 | 0.389 |
| Blood loss (mL) | 718±198 | 1275±172 | 0.045 |
| Blood transfusion (patients) | |||
| Yes | 10 | 19 | 0.394 |
| No | 4 | 3 | |
| Blood transfusion (mL) | |||
| Intraoperative | 429±98 | 691±106 | 0.098 |
| Within 3 days post operation | 429±98 | 764±129 | 0.071 |
| Drainage | |||
| First day (mL) | 57±10 | 275±18 | < 0.001 |
| Total amount (mL) | 141±32 | 873±56 | < 0.001 |
| Time (day) | 3.1±0.2 | 7.0±0.4 | < 0.001 |
| Postoperative hospitalization (day) | 8.8±1.0 | 11.3±0.7 | 0.029 |
Note: Bold font, P<0.05.