. 2017 Jun;31(6):670–676. [Article in Chinese] doi: 10.7507/1002-1892.201702096

表 2.

Comparison of percentage of anterior vertebral height between two groups at pre- and post-operation (%, Inline graphic )

两组患者手术前后伤椎前缘高度百分比比较（%， Inline graphic ）

组别 Group	例数 n	术前 Preoperative	术后 1 周 One week after operation	术后 3 个月 Three months after operation	末次随访 Last follow-up	统计值 Statistic
^* 与术前比较 P<0.05，^# 与术后 3 个月比较 P<0.05 ^* Compared with the preoperative value, P<0.05;^# compared with the value at 3 months after operation, P<0.05
A	30	56.733±12.852^#	92.486±4.108^*	91.238±4.542^*	90.295±5.214^*	F=167.610 P= 0.000
B	20	54.260± 8.485^#	95.390±4.254^*	94.810±5.078^*	94.190±5.154^*	F=362.214 P= 0.000
统计值 Statistic		t=0.552 P=0.586	t=–1.820 P= 0.079	t=–1.972 P= 0.058	t=–1.951 P= 0.061