Table 7 Comparison of VAS before and after surgery and between groups (\(\overline{\mathrm x}\) ± s)

Number

21

41

32

19

-

-

Pre-op

7.62 ± 1.10

7.36 ± 1.47

7.47 ± 1.37

7.88 ± 1.58

0.640

0.591

2 weeks post-op

6.17 ± 1.28

5.87 ± 1.65

6.21 ± 1.76

6.16 ± 1.87

0.322

0.810

1 month post-op

5.06 ± 0.96

4.74 ± 1.26

4.70 ± 1.19

4.83 ± 1.39

0.433

0.730

3 months post-op

2.90 ± 1.05

2.43 ± 1.28

2.45 ± 1.27

2.54 ± 1.08

0.799

0.497

6 months post-op

1.84 ± 0.90

1.38 ± 0.91

1.52 ± 0.97

1.67 ± 1.03

1.224

0.305

1 year post-op

1.27 ± 0.69

0.94 ± 0.72

1.09 ± 0.71

1.16 ± 0.86

1.040

0.378

F

153.103

220.366

175.792

93.016

-

-

P value

0.000

0.000

0.000

0.000

-

-