Table 2 Differences in scores over time and between the two groups

preop ADL

5.2 ± 1.2

5.0 ± 1.3

ns

ADL at follow-up

5.2 ± 1.3

5.5 ± 1.1

ns

p-value

ns

< 0.001

preop IADL

6.0 ± 1.9

5.6 ± 2.1

ns

IADL at follow-up

6.8 ± 1.9

6.8 ± 2.0

ns

p-value

< 0.001

< 0.001

preop WOMAC

70.7 ± 13.6

76.1 ± 14.9

ns

WOMAC at follow-up

20.9 ± 20.7

14.5 ± 17.5

0.018

p-value

< 0.001

< 0.001

preop VAS

8.7 ± 1.5

9.2 ± 1.2

ns

VAS at follow-up

2.5 ± 2.5

1.3 ± 1.9

0.002

p-value

< 0.001

< 0.001

preop HHS

33.9 ± 15.3

28.5 ± 14.8

0.036

HHS at follow-up

82.9 ± 20.3

86.0 ± 16.6

ns

p-value

< 0.001

< 0.001