| Variables | Adjacent ROM (N = 30) | P-value | Sig. | |
| Mean | SD | |||
| Global ROM | ||||
| Preoperative | 43.2 | 11.7 | <0.001 | HS |
| After 1 month | 30.9 | 8.8 | ||
| After 6 months | 39.1 | 8 | ||
| Cranial ROM | ||||
| Preoperative | 15.3 | 4.3 | <0.001 | HS |
| After 1 month | 12.1 | 3.6 | ||
| After 6 months | 13.8 | 3.9 | ||
| Caudal ROM | ||||
| Preoperative | 13.1 | 3.8 | <0.001 | HS |
| After 1 month | 10.03 | 2.6 | ||
| After 6 months | 11.2 | 2.9 | ||