TABLE III.
Aggregate Postoperative Outcomes in AVBT and PSF Studies*
| Outcome | Pooled Mean (95% Confidence Interval) | |
| AVBT | PSF | |
| Complication rate (%) | 26.0 (12.0-40.0) | 2.0 (0.0-4.0) |
| <36 mo | 11.8 (4.4-18.6) | 1.0 (0.0-2.4) |
| ≥36 mo | 25.2 (19.1-31.7) | 2.9 (0.5-5.3) |
| Reoperation rate (%) | 14.1 (5.6-22.6) | 0.6 (0.0-2.3) |
| <36 mo | 2.9 (0.0-8.4) | 1.3 (0.0-1.7) |
| ≥36 mo | 24.7 (10.7-38.7) | 1.8 (0-5.4) |
| Conversion to PSF (%) | 1.4 (0-4.5) | Not applicable |
| Main thoracic curve (°) | ||
| Preop. | 46.0 (42.3-50.0) | 53.3 (52.8-53.9) |
| First erect | 24.9 (20.1-29.8) | 16.6 (12.8-20.3) |
| 12 to <24 mo | 24.6 (17.8-31.4) | 13.3 (8.7-17.8) |
| ≥24 to <36 mo | 21.5 (8.3-34.7) | 21.9 (17.4-26.4) |
| ≥36 mo | 22.5 (14.1-30.9) | 22.7 (19.6-25.8) |
| Compensatory lumbar curve (°) | ||
| Preop. | 28.7 (25.6-32.0) | 30.9 (29.2-32.5) |
| First erect | 19.3 (16.6-22.4) | 9.9 (8.1-11.7) |
| 12 to <24 mo | 16.5 (11.2-21.7) | Insufficient data |
| ≥24 to <36 mo | 13.2 (8.4-18.0) | 10.7 (8.0-13.5) |
| ≥36 mo | 18.0 (3.5-32.5) | 15.2 (13.3-17.1) |
| Thoracic kyphosis (°) | ||
| Preop. | 24.3 (17.8-30.8) | 23.0 (20.7-25.2) |
| First erect | 22.1 (16.5-27.7) | 31.0 (27.9-33.3) |
| 12 to <24 mo | 25.0 (13.4-36.6) | Insufficient data |
| ≥24 to <36 mo | 23.0 (19.6-26.4) | 17.9 (15.1-20.7) |
| ≥36 mo | 22.5 (12.0-33.0) | 24.5 (21.9-27.1) |
| Lumbar lordosis (°) | ||
| Preop. | 52.0 (46.2-57.9) | 47.2 (28.1-66.3) |
| First erect | 46.5 (40.1-52.8) | Insufficient data |
| 12 to <24 mo | 56.0 (47.2-64.9) | Insufficient data |
| ≥24 to <36 mo | 52.7 (48.6-56.8) | 46.3 (42.3-50.3) |
| ≥36 mo | 55.1 (51.3-58.8) | 46.1 (25.0-67.1) |
| Thoracic rotation (°) | ||
| Preop. | 13.7 (12.1-15.2) | 15.4 (12.4-18.4) |
| First erect | 10.0 (8.7-11.2) | 6.0 (4.5-7.5) |
| 12 to <24 mo | 8.1 (5.9-10.3) | Insufficient data |
| ≥24 to <36 mo | 6.9 (4.8-8.9) | 8.07 (5.0-11.1) |
| ≥36 mo | 8.4 (1.0-15.7) | 13.0 (3.3-22.6) |
| Postop. SRS-22 self-image | 4.27 (4.0-4.56) | 4.23 (4.07-4.40) |
| Postop. SRS-22 total | 4.36 (4.06-4.65) | 4.30 (4.17-4.43) |
*
AVBT = anterior vertebral body tethering, and PSF = posterior spinal fusion. The complication rate is reported as the minimum possible number of patients with at least 1 complication. Nonoverlapping confidence intervals for the primary outcomes of interest are highlighted in bold.