Table 3 VAS scores at different time period after surgery \( \left(\overline{\mathbf{x}}\pm \mathbf{s}\right) \)

Group C

24

2.78 ± 0.85

3.64 ± 0.74

3.79 ± 0.87

3.02 ± 0.71

Group P1

24

2.54 ± 0.81^*

2.69 ± 0.78^*&

3.03 ± 0.97^*&

2.96 ± 0.78

Group P2

25

2.57 ± 0.79^*

2.79 ± 0.81^*

3.52 ± 0.84^*

2.94 ± 0.73

Group P3

25

2.55 ± 0.77^*

2.83 ± 0.69^*

3.49 ± 0.79^*

2.99 ± 0.67