Measure of sagittal alignment correction.
| Sagittal Alignment Parameters | Value | P |
| Disc height, mm | ||
| Preoperative, mean ± SD | 9.63 ± 8.76 | |
| Postoperative, mean ± SD | 13.3 ± 3.14 | |
| Change, mean ± SD | 4.46 ± 3.77 | <0.0001 |
| Correlation with cage obliquity | No (rs = 0.21) | 0.111 |
| Correlation with sagittal placement | No (rs = 0.13) | 0.461 |
| Segmental lordosis angle (°) | ||
| Preoperative, mean ± SD | 5.95 ± 5.13 | |
| Postoperative, mean ± SD | 10.2 ± 4.30 | |
| Change, mean ± SD | 4.23 ± 5.67 | <0.0001 |
| Correlation with cage obliquity | No (rs = 0.04) | 0.931 |
| Correlation with sagittal placement | No (rs = −0.004) | 0.561 |