Table 2.
Sagittal parameters at ages 0, 1, 3, 5, 7-10, and 11-18 years.
| Friedman | Wilcoxon P | |||||||
|---|---|---|---|---|---|---|---|---|
| 0 y (n=21) | 1y (n=21) | 3 y (n=21) | 5 y (n=21) | 7-10 y (n=15) | 11-18 y (n=6) | P value | Significance | |
| CL: C2-7 lordosis | 9.9 ± 6.5 | 6.9 ± 4.9 | 6.5 ± 5.0 | 7.3 ± 7.5 | 6.3 ± 9.0 | 7.9 ± 6.3 | <0.05 | CL0 vs. CL1 and CL3 |
| TK: Thoracic kyphosis | 7.9 ± 5.1 | 9.6 ± 6.7 | 22.5 ± 12.8 | 26.7 ± 12.0 | 22.5 ± 11.4 | 23.9 ± 4.1 | <0.01 | TK0 vs. TK3 and TK5 |
| TLK: Thoracolumbar kyphosis | 29.2 ± 12.6 | 29.2 ± 8.2 | 18.8 ± 18.5 | 16.5 ± 18.0 | 23.4 ± 26.4 | 26.1 ± 33.1 | <0.05 | TLK1 vs TLK5. |
| LL: Lumbar lordosis | 24.9 ± 9.5 | 34.9 ± 18.7 | 47.8 ± 17.6 | 53.1 ± 15.1 | 52.6 ± 14.8 | 52.4 ± 17.2 | <0.01 | LL0 vs. LL1,3,5 |
| PI: Pelvic incidence | 47.7 ± 14.4 | 50.5 ± 11.1 | 51.1 ± 13.0 | 55.1 ± 14.1 | 58.0 ± 16.7 | ns | ||
| PT: Pelvic tilt | 15.3 ± 9.5 | 9.3 ± 6.8 | 10.0 ± 7.4 | 12.5 ± 8.6 | 17.7 ± 9.9 | <0.01 | PT1 vs. PT3 | |
| SS: Sacral Slope | 32.5 ± 9.2 | 41.2 ± 9.4 | 41.1 ± 11.2 | 42.6 ± 10.0 | 40.3 ± 9.0 | <0.01 | SS1 vs. SS3 and SS5 | |
| SVA (C7S1): Sagittal vertical axis | 14.6 ± 46.3 | −13.1 ± 33.0 | −16.4 ± 35.1 | −5.6 ± 44.6 | 16.8 ± 42.1 | ns | ||
| TLK>20 degree | 16 (76.2) | 18 (85.7) | 7 (33.3) | 6 (28.6) | 5 (35.7) | 2 (33.3) | ||
| Apical vertebral wedge | 4 (19.0) | 7 (33.3) | 9 (42.9) | 9 (42.9) | 8 (53.3) | 3 (50) | ||
| Apical vertebral wedging angle | 13.3 ± 8.5 | 15.2 ± 5.2 | 16.2 ± 6.2 | 18.4 ± 9.7 | 18.6 ± 11.1 | 24.9 ± 20.0 |
Data are shown as mean ± standard deviation or number (percentage) of patients
ns; not significant