. 2020 Jan;34(1):76–82. [Article in Chinese] doi: 10.7507/1002-1892.201906105

表 4.

Comparison of fixed segment kyphosis Cobb angle between the two groups before and after operation ( Inline graphic , °)

两组患者手术前后固定节段后凸 Cobb 角比较（ Inline graphic ，°）

组别 Group	例数 n	术前 Preoperative	术后 3 d Postoperative at 3 days	术后 1 个月 Postoperative at 1 month	术后 6 个月 Postoperative at 6 months	术后 10 个月 Postoperative at 10 months	统计值 Statistic
^与术前比较P<0.05 ^Compared with preoperative value，P<0.05
微创组 Minimally invasive group	24	7.5±1.1	–3.9±0.6^*	–4.0±0.3^*	–3.9±0.7^*	–4.0±0.5^*	F=2 296.354 P=0.000
开放组 Traditional group	28	7.9±0.9	–4.2±0.8^*	–4.1±0.7^*	–4.1±0.8^*	–4.2±0.6^*	F=2 591.522 P=0.000
统计值 Statistic		t=–1.053 P=0.152	t=1.332 P=0.102	t=0.463 P=0.632	t=0.598 P=0.415	t=0.521 P=0.496