| median nerve diameter | Study groups | ANOVA test P-value | |||
| Pre-operative | Post-operative (1 month) | Post-operative (3 months) | Post-operative (6 months) | ||
| Mean ± SD | 14.22 ± 2.36 | 12.93 ± 1.29 | 11.05 ± 1.18 | 9.51 ± 1.46 | F = 30.886 P < 0.001* |
| P1 |
| 0.001* | <0.001* | <0.001* | |
| P2 |
|
| <0.001* | <0.001* | |
| P3 |
|
|
| 0.083 | |