. 2020 Oct;34(10):1275–1280. [Article in Chinese] doi: 10.7507/1002-1892.202004053

表 4.

Comparison of kyphosis Cobb angles between the two groups at different time points ( Inline graphic , °)

两组手术前后各时间点后凸 Cobb 角比较（ Inline graphic ，°）

组别 Group	例数 n	术前 Preoperative	术后 1 周 One week after operation	末次随访 Last follow-up	统计值 Statistic
^与术前比较 P<0.05，^#与术后 1 周比较 P<0.05 ^Compared with preoperative value, P<0.05;^#compared with the value at 1 week after operation, P<0.05
短节段组 Short-segment group	18	22.98±6.93^#	10.52±2.62^*	11.00±2.34^*	F=44.581 P=0.000
长节段组 Long-segment group	26	22.08±6.03^#	10.06±2.36^*	10.45±2.42^*	F=76.159 P=0.000
统计值 Statistic		t=0.455 P=0.652	t=0.614 P=0.543	t=0.745 P=0.461