Table 4.

Comparison of lateral meniscus histological score between PCL-rupture group and control group

	Weeks	4 w	8 w	12 w	16 w	24 w
LMHS	PCL-rupture group	2.50 ± 0.67	2.58 ± 0.79	4.50 ± 1.00	7.25 ± 1.14	9.41 ± 1.00
	Control group	0.67 ± 0.49	0.75 ± 0.45	0.42 ± 0.67	0.50 ± 0.52	0.33 ± 0.49
	P value	< 0.05	< 0.05	< 0.05	< 0.05	< 0.05
MMP-1	PCL-rupture group	5.22 ± 0.77	5.14 ± 0.92	5.47 ± 1.09	5.67 ± 0.98	5.39 ± 0.83
	Control group	10.43 ± 1.22	11.57 ± 2.59	57.14 ± 2.85	51.51 ± 6.80	59.21 ± 6.80
	P value	< 0.05	< 0.05	< 0.05	< 0.05	< 0.05
MMP-13	PCL-rupture group	5.28 ± 0.79	5.14 ± 0.92	5.47 ± 1.09	5.66 ± 0.98	5.39 ± 0.83
	Control group	10.47 ± 1.57	11.14 ± 2.09	51.43 ± 6.17	51.51 ± 6.80	11.21 ± 2.20
	P value	< 0.05	< 0.05	< 0.05	< 0.05	< 0.05
TIMP-1	PCL-rupture group	3.35 ± 0.95	3.39 ± 0.96	3.43 ± 1.00	4.08 ± 1.36	4.45 ± 1.30
	Control group	6.86 ± 1.13	7.42 ± 1.22	52.38 ± 6.42	7.64 ± 1.28	6.89 ± 1.15
	P value	< 0.05	< 0.05	< 0.05	< 0.05	< 0.05

^▲Wilcoxon ran-sum test. LMHS, lateral meniscus histological score; MMP-1, MMP-1 expression level in lateral meniscus; MMP-13, MMP-13 expression level in lateral meniscus; TIMP-1, TIMP-1 expression level in lateral meniscus.