表 1.
Comparison of perioperative related indicators between the two groups (
 )
)
两组患者围术期相关指标比较(
 )
)
| 组别 Group | 例数 n | 术中出血量(mL) Intraoperative blood loss (mL) | 手术时间(min) Operation time (minutes) | 术后引流量(mL) Postoperative drainage (mL) | 术后卧床时间(d) Postoperative bed time (days) | 住院时间(d) Hospital stay (days) | 
| 改良 TLIF 组 Modified TLIF group | 54 | 139.436±29.742 | 120.337±21.989 | 95.568±16.882 | 3.012±1.026 | 7.096±1.236 | 
| PLIF 组 PLIF group | 52 | 300.635±40.965 | 143.584±15.400 | 278.750±53.325 | 4.737±0.908 | 8.856±2.541 | 
| 统计值 Statistic | t=−23.303 P=0.000 | t=−6.286 P=0.000 | t=−24.001 P=0.000 | t=−9.292 P=0.000 | t=−4.667 P=0.000 |