Table 2 Pre- and post-operative mean cervical alignment and range of motion
Preoperative | 2-year FU | 4-year FU | Final FU | |
|---|---|---|---|---|
Cervical sagittal alignment(°) | 10.5 ± 9.3 | 11.5 ± 9.1 | 11.4 ± 10.3 | 11.0 ± 9.7 |
Segmental angle(°) | 3.1 ± 2.2 | 3.0 ± 3.0 | 2.8 ± 3.3 | 2.9 ± 3.6 |
ROM of operated level(°) | 9.7 ± 4.7 | 9.3 ± 5.8 | 9.0 ± 5.1 | 8.0 ± 5.6* |
ROM of superior level(°) | 10.2 ± 5.1 | 9.9 ± 5.2 | 10. 1 ± 5.2 | 9.5 ± 5.7 |
ROM of inferior level(°) | 10.0 ± 4.3 | 9.4 ± 3.7 | 8.8 ± 4.6 | 9.4 ± 4.7 |