Clinical outcomes.
| Cohort | PROMs at 0 mo | PROMs at 6 wk | ||||
| sa-ALIF | ALIF-PSF | P | sa-ALIF | ALIF-PSF | P | |
| VAS leg | 7.2 ± 1.7 | 8.1 ± 1.5 | 0.035 | 2.7 ± 2.2 | 4.9 ± 1.7 | 0.0002 |
| VAS back | 7.5 ± 1.4 | 7.2 ± 1.9 | NS | 4.1 ± 1.4 | 4.1 ± 2.0 | NS |
| ODI | 28.0 ± 5.3 | 30.9 ± 4.8 | NS | 18.6 ± 6.2 | 21.1 ± 5.0 | NS |
| SF-12 PCS | 27.9 ± 5.7 | 26.3 ± 4.1 | NS | 39.9 ± 6.3 | 36.8 ± 4.4 | 0.042 |
| SF-12 MCS | 51.2 ± 8.9 | 51.7 ± 6.2 | NS | 55.2 ± 5.9 | 54.4 ± 4.3 | NS |
| Cohort | PROMs at 6 mo | PROMs at 12 mo | ||||
| sa-ALIF | ALIF-PSF | P | sa-ALIF | ALIF-PSF | P | |
| VAS leg | 1.7 ± 1.7 | 2.3 ± 2.0 | NS | 0.8 ± 1.0 | 1.8 ± 1.7 | NS |
| VAS back | 2.7 ± 1.5 | 2.4 ± 1.8 | NS | 2.3 ± 1.7 | 1.8 ± 2.0 | NS |
| ODI | 11.9 ± 5.6 | 9.5 ± 5.5 | NS | 8.7 ± 7.0 | 7.7 ± 6.0 | NS |
| SF-12 PCS | 45.9 ± 5.3 | 48.5 ± 7.1 | NS | 50.5 ± 6.2 | 50.4 ± 6.8 | NS |
| SF-12 MCS | 54.9 ± 5.7 | 53.8 ± 4.6 | NS | 53.4 ± 4.2 | 54.4 ± 4.1 | NS |
| Cohort | PROMs at Final Follow-Up | ||
| sa-ALIF (mean follow-up = 2.1 y) | ALIF-PSF (mean follow-up = 5.3 y) | P | |
| VAS leg | 0.9 ± 1.1 | 1.4 ± 1.5 | NS |
| VAS back | 2.4 ± 1.4 | 2.3 ± 2.0 | NS |
| ODI | 5.6 ± 3.7 | 6.9 ± 5.0 | NS |
| SF-12 PCS | 52.1 ± 4.4 | 48.4 ± 6.6 | NS |
| SF-12 MCS | 52.6 ± 3.3 | 52.6 ± 3.9 | NS |
| Decision regret score | 5.8 ± 10.4 | 2.5 ± 11.2 | NS |
Abbreviations: ALIF, anterior lumbar interbody fusion; MCS, mental component summary; NS, not significant; ODI, Oswestry Disability Index; PCS, physical component summary; PROMs, patient-reported outcome measures; PSF, pedicle-screw fixation; sa-ALIF, standalone anterior lumbar interbody fusion; SF-12, 12-item Short-Form survey; VAS, visual analog scale.