Differences in radiographic outcomes between preoperative, postoperative, and final follow-up.
| Measurement | Preoperative Mean (SD) | Postoperative Mean (SD) | Final Mean (SD) | Pre-Post P Value | Post-Final P Value | Pre-Final P Value |
| C2-C7 lordosis | 1.09 (10.24) | 10.42 (10.09) | 9.55 (11.92) | <0.001 | 0.989 | 0.001 |
| Sagittal vertical axis | 23.51 (19.33) | 28.08 (21.38) | 28.74 (22.49) | 0.002 | 0.859 | 0.008 |
| Fusion segment lordosis | −1.74 (10.61) | 8.70 (8.57) | 8.69 (10.62) | <0.001 | 0.786 | <0.001 |
| T1 slope | 24.53 (7.19) | 29.98 (7.85) | 29.13 (8.93) | 0.053 | 0.951 | 0.022 |
| Proximal adjacent segment lordosis | 0.81 (4.83) | 0.96 (6.76) | −1.35 (8.35) | 0.836 | 0.108 | 0.097 |
| Distal adjacent segment lordosis | 1.77 (4.43) | 1.27 (5.25) | 3.43 (4.15) | 0.626 | 0.263 | 0.237 |
| Disc height | 2.62 (1.62) | 3.53 (2.47) | 3.24 (2.32) | 0.008 | 0.008 | 0.019 |
Note: Boldface indicates statistically significant findings (P < 0.05).