Table 3.

The VAS and ROM in the two groups

	MMV group	MPP group	p value
VAS
Preop	5.1 ± 0.7	5.3 ± 0.8	0.421
Postop 1 month	3.4 ± 0.7	4.5 ± 1.1	0.032
Postop 6 months	3.1 ± 0.8	4.1 ± 0.9	0.043
Postop 12 months	2.8 ± 1.2	2.9 ± 1.1	0.072
Postop 24 months	2.3 ± 0.8	2.4 ± 0.7	0.771
Postop 36 months	2.1 ± .7	2.2 ± 1.1	0.881
ROM
Preop	97.8 ± 8.9	97.1 ± 6.7	0.615
Postop 1 month	103.9 ± 7.4	98.6 ± 7.3	0.034
Postop 6 months	105.1 ± 5.4	100.8 ± 7.7	0.041
Postop 12 months	106.3 ± 7.8	104.1 ± 8.2	0.064
Postop 24 months	109.9 ± 6.8	108.6 ± 7.3	0.525
Postop 36 months	112.9 ± 7.8	110.2 ± 7.2	0.846

MMV mini-midvastus, MPP medial parapatellar, VAS visual analog score for pain; ROM range of motion; Preop preoperation, Postop postoperation; mean ± standard deviation