Radiographic parameters at pre- and postoperative timepoints.
| Cohort | Preoperative | 6 mo Postoperative | 12 mo Postoperative | ||||||
| sa-ALIF (n = 6) | ALIF-PSF (n = 11) | P | sa-ALIF (n = 17) | ALIF-PSF (n = 22) | P | sa-ALIF (n = 12) | ALIF-PSF (n = 14) | P | |
| % anterolisthesis | 15.4 ± 7.7 | 17.5 ± 8.3 | NS | 11.9 ± 6.6 | 14.6 ± 8.8 | NS | 13.1 ± 2.2 | 13.5 ± 2.7 | NS |
| Segmental lordosis, mm | 11.7 ± 5.9 | 10.0 ± 5.9 | NS | 14.7 ± 1.2 | 12.9 ± 1.2 | NS | 13.4 ± 1.1 | 12.3 ± 1.4 | NS |
| Disc height, mm | 7.1 ± 2.6 | 6.9 ± 2.1 | NS | 12.1 ± 0.3 | 10.4 ± 0.6 | 0.035 | 11.8 ± 0.4 | 10.7 ± 0.5 | NS |
Abbreviations: ALIF, anterior lumbar interbody fusion; NS, not significant; PSF, pedicle-screw fixation; sa-ALIF, standalone anterior lumbar interbody fusion.