Table 3 Radiographic outcomes in single-level ACDF
Variables | Group A (n = 51) | Group B (n = 58) | P value |
|---|---|---|---|
Fusion rate | |||
 3 months follow-up | 6/51 | 16/58 | 0.03 |
 6 months follow-up | 16 /51 | 31/58 | 0.02 |
 1 year follow-up | 39/51 | 53/58 | 0.03 |
 Final follow-up | 46/51 | 55/58 | 0.58 |
FSH (mm) | |||
 Preoperative | 30.7 ± 3.2 | 29.8 ± 3.0 | 0.13 |
 Postoperative | 33.2 ± 3.4 | 32.4 ± 3.2 | 0.21 |
 1 year follow-up | 31.9 ± 2.9 | 31.2 ± 2.7 | 0.19 |
 Final follow-up | 31.4 ± 2.8 | 30.9 ± 2.7 | 0.35 |
Subsidence (mm) | 1.8 ± 0.7 | 1.5 ± 0.5 | 0.01 |
Subsidence rate | 11/51 | 5/58 | 0.06 |
C2-7 lordosis (°) | |||
 Preoperative | 10.7 ± 6.7 | 11.5 ± 8.1 | 0.57 |
 Postoperative | 14.3 ± 6.7 | 15.5 ± 8.6 | 0.39 |
 1 year follow-up | 13.9 ± 7.3 | 15.3 ± 8.4 | 0.36 |
 Final follow-up | 13.1 ± 8.1 | 14.8 ± 9.2 | 0.31 |
SSA (°) |  |  |  |
 Preoperative | 2.1 ± 4.8 | 2.7 ± 5.5 | 0.55 |
 Postoperative | 7.2 ± 3.4 | 8.1 ± 4.9 | 0.27 |
 1 year follow-up | 5.4 ± 3.1 | 6.7 ± 4.6 | 0.09 |
 Final follow-up | 5.1 ± 3.5 | 6.4 ± 4.0 | 0.08 |