Table 4.

The KSS in the two groups

	MMV group	MPP group	p value
Clinical score
Preop	36.5 ± 4.8	36.7 ± 5.4	0.681
Postop 1 month	71.6 ± 5.7	68.2 ± 6.5	0.032
Postop 6 months	76.3 ± 4.9	73.6 ± 6.2	0.037
Postop 12 months	81.6 ± 5.9	80.4 ± 5.7	0.087
Postop 24 months	89.6 ± 3.2	88.4 ± 3.9	0.661
Postop 36 months	93.3 ± 4.1	92.2 ± 4.8	0.783
Functional score
Preop	38.4 ± 3.9	37.2 ± 5.4	0.783
Postop 1 month	65.1 ± 5.9	61.2 ± 6.1	0.022
Postop 6 months	71.4 ± 4.8	67.1 ± 5.2	0.033
Postop 12 months	74.1 ± 3.1	73.4 ± 4.7	0.061
Postop 24 months	82.2 ± 3.6	81.6 ± 3.3	0.511
Postop 36 months	85.1 ± 3.7	84.1 ± 3.2	0.685

MMV mini-midvastus, MPP medial parapatellar, KSS Knee Society Score, Preop preoperation, Postop postoperation; mean ± standard deviation