Table 4.

Comparison of knee joint function between the two groups (mean ± SD)

Group	n	Subjective evaluation score (points)		Radiology evaluation (points)
		12 mo after operation	18 mo after surgery	12 mo after operation	18 mo after surgery
Study group	49	18.84 ± 3.50	25.81 ± 2.50	10.41 ± 2.10	15.50 ± 1.32
Control group	48	16.57 ± 3.32	25.21 ± 2.64	10.13 ± 2.32	15.16 ± 1.27
t value		3.276	1.150	0.623	1.292
P value		0.001	0.253	0.534	0.199