Table 2.
The effects on cervical sagittal alignment parameters following ACHDF
| Item | Pre- | Post- | Follow-up | P value | P▲ value |
|---|---|---|---|---|---|
| C2–7SVA (cm) | 1.37 ± 1.41 | 1.73 ± 1.23 | 1.64 ± 1.14 | 0.019* | 0.414 |
| C2–7lordosis (°) | 15.13 ± 10.74 | 15.81 ± 8.18 | 16.82 ± 7.13 | 0.614 | 0.265 |
| T1 s (°) | 26.36 ± 8.16 | 26.94 ± 7.00 | 27.69 ± 6.49 | 0.621 | 0.421 |
| Cervical tilting (°) | 5.53 ± 6.33 | 7.57 ± 7.38 | 8.51 ± 6.63 | 0.025* | 0.205 |
| Cranial tilting (°) | 18.14 ± 7.40 | 16.61 ± 7.14 | 17.71 ± 6.36 | 0.725 | 0.179 |
(P value, comparison between pre- and post-; P▲ value, comparison between post- and follow-up; ACHDF, anterior cervical hybrid decompression and fusion; SVA, sagittal vertical axis; T1 s, T1 slope)