表 4.

Comparison of the graft MRI score and bone tunnel expansion degree between the two groups after operation (n=29, )

两组术后移植物 MRI 评分及骨隧道内口扩大程度比较（n=29， ）

组别 Group	移植物 MRI 评分 Graft MRI score	股骨骨隧道内口扩大程度（mm） Bone tunnel expansion of femur (mm)			胫骨骨隧道内口扩大程度（mm） Bone tunnel expansion of tibia (mm)
		术后 3 个月 Postoperative at 3 months	术后 12 个月 Postoperative at 12 months		术后 3 个月 Postoperative at 3 months	术后 12 个月 Postoperative at 12 months
试验组 Trial group	3.2±1.0	0.51±0.22	1.05±0.32		0.53±0.20	1.15±0.26
对照组 Control group	3.8±0.9	0.92±0.26	1.46±0.23		0.88±0.19	1.53±0.28
统计值 Statistic	t=2.425 P=0.019	t=6.573 P=0.000	t=4.709 P=0.000		t=6.092 P=0.000	t=5.450 P=0.000