Table 2.
Results of radiographical parameters
| ASF | PSF | |
|---|---|---|
| Number of fused vertebrae† | 6.6 ± 1.4 (4–9) | 10.7 ± 1.4 (7–15) |
| Cobb angle of preop. main thoracic curve (º)* | 54.9 ± 8.3 (41–83) | 58.8 ± 11.6 (36–107) |
| Cobb angle of postop. main thoracic curve (º)* | 19.7 ± 9.5 (0–47) | 17.1 ± 7.6 (0–49) |
| Correction rate of main thoracic curve (%)† | 64.0 ± 16.8 (23–100) | 71.0 ± 11.2 (37–100) |
| Correction of Cobb angle (º)† | 35.2 ± 11.1 (10–74) | 41.7 ± 10.2 (21–73) |
| Preop. main thoracic curve length (mm)* | 154.3 ± 27.1 (98–217) | 143.6 ± 27.8 (83–223) |
| Postop. main thoracic curve length (mm)* | 155.9 ± 26.3 (105–219) | 157.6 ± 28.7 (90–238) |
| Increase in main thoracic curve length (mm)† | 1.5 ± 4.6 (−8 to 13) | 14.0 ± 5.2 (0–42) |
| Preop. T1–L5 length (mm)* | 376.9 ± 25.8 (313–431) | 371.9 ± 28.2 (286–448) |
| Postop. T1–L5 length (mm)* | 393.4 ± 23.2 (343–440) | 404.5 ± 27.7 (326–483) |
| Increase in T1–L5 length (mm)† | 16.6 ± 7.7 (−3 to 51) | 32.4 ± 10.8 (10–61) |
| Preop. lumbar curve Cobb angle (º)* | 34.1 ± 10.1 (20.0–63.8) | 34.1 ± 8.9 (17.1–60.6) |
| Postop. lumbar curve Cobb angle (º)* | 10.9 ± 8.7 (0.0–28.9) | 10.1 ± 7.3 (0.0–36.8) |
ASF anterior spinal correction and fusion, PSF posterior spinal correction and fusion
* No significant difference by Mann–Whitney U test between ASF and PSF group
†p < 0.001 by Mann–Whitney U test between ASF and PSF group