. 2018 Feb;32(2):162–168. [Article in Chinese] doi: 10.7507/1002-1892.201710075

表 4.

Comparison of pre- and post-operative KSS scores between 2 groups ( Inline graphic )

两组手术前后 KSS 评分比较（ Inline graphic ）

组别 Group	膝数 n	术前 Preoperative	术后 1 个月 One month after operation	术后 3 个月 Three months after operation	术后 6 个月 Six months after operation	术后 12 个月 Twelve months after operation	术后 3 年 Three years after operation	术后 5 年 Five years after operation
传统入路组 Conventional approach group	51	117.5±8.4	133.5±7.6	143.3±7.6	162.2±7.3	168.5±6.6	171.9±8.9	168.1±8.2
微创入路组 Mini-subvastus approach group	49	113.2±8.5	136.4±8.2	145.8±5.8	164.2±6.7	170.2±7.5	170.4±8.5	168.8±9.1
统计值 Statistic		t=1.433 P=0.158	t=–0.717 P= 0.478	t=–0.478 P= 0.816	t=–0.525 P= 0.602	t=–0.654 P= 0.559	t=0.505 P=0.314	t=–0.367 P= 0.992