Variable

Before treatment

After treatment

p(b-a)

1 week

1 month

3 months

6 months

12 months

Knee joint R

16.04 ± 1.57

17.03 ± 0.73

15.51 ± 1.64

12.53 ± 2.17

6.0 ± 1.38

4.31 ± 1.04

0.00

Knee joint L

17.52 ± 1.74

18.13 ± 2.02

16.35 ± 1.81

13.55 ± 1.95

7.02 ± 1.27

5.15 ± 1.48

0.00