TABLE 2.
Alignment measurements for spinal parameters measured preoperatively, 3‐month postoperatively, and 1‐year postoperatively reported as mean (SD). Statistical comparisons were performed between each time point within each measurement category. Significant p‐values (p < 0.05).
| Preoperative | 3‐months postoperative | 1‐year postoperative | |
|---|---|---|---|
| PJA (degrees°) | 8.4 (7.8) | 14.6 (11.0) | 13.7 (10.3) |
| SVA (mm) | 58.7 (56.3) | 19.7 (32.6) a | 9.7 (29.6) b |
| PT (degrees°) | 24.9 (10.8) | 21.9 (8.4) | 20.5 (7.7) |
| PI (degrees°) | 54.6 (14.9) | 57.1 (13.8) | 45.1 (41.2) |
| LL (degrees°) | −30.2 (27.1) | −47.4 (20.9) a | −49.2 (15.3) b |
| PI‐LL mismatch (degrees°) | 13.5 (34.9) | 7.1 (10.6) | −3.1 (38.8) b , c |
Abbreviations: PI‐LL, pelvic incidence‐lumbar lordosis; PJA, proximal junctional angle; PT, pelvic tilt; SVA, sagittal vertical axis.
a
Adjusted p < 0.01 between preoperative and 3‐months postoperative.
b
Adjusted p < 0.01 between preoperative and 1‐year postoperative.
c
Adjusted p < 0.01 between 3‐months and 1‐year postoperative.