Table 3.

Comparison of the functional range of motion of the knee joint in group A and group B (mean ± SD, °)

Groups	n	Preoperative	3 mo after surgery	6 mo after surgery
Group A	40	76.9 ± 10.4	122.0 ± 18.5a	138.2 ± 15.7a
Group B	38	79.0 ± 9.8	119.8 ± 17.3a	134.6 ± 17.4a
t value		-0.917	0.542	0.960
P value		0.362	0.590	0.340

^a P < 0.05 vs this group before surgery.