Table 2.
The Overall Sagittal Parameters Under Roussouly Classification.
| Parameters | Type 1 | Type 2 | Type 3 + AP | Type 3 | Type 4 | P (ANOVA) |
|---|---|---|---|---|---|---|
| PIa (deg) | 37.3 ± 8.0 | 42.6 ± 5.1 | 41.6 ± 3.0 | 53.4 ± 6.1 | 58.0 ± 8.5 | <.001 |
| SSa (deg) | 25.7 ± 5.6 | 31.2 ± 3.7 | 40.8 ± 3.5 | 39.3 ± 2.6 | 46.4 ± 2.5 | <.001 |
| PTa (deg) | 11.6 ± 6.2 | 11.6 ± 5.7 | 0.8 ± 3.6 | 14.0 ± 5.5 | 11.8 ± 7.4 | <.001 |
| LLa (deg) | 40.4 ± 11.1 | 46.7 ± 7.5 | 59.0 ± 8.3 | 55.7 ± 6.0 | 62.6 ± 4.1 | <.001 |
| LTa (deg) | −10.5 ± 3.9 | −6.9 ± 3.4 | −5.9 ± 2.3 | −4.0 ± 3.5 | 1.2 ± 3.6 | <.001 |
| TLKa (deg) | 9.6 ± 7.9 | 6.0 ± 5.1 | 5.7 ± 4.7 | 4.5 ± 4.0 | 5.7 ± 4.0 | .109 |
| TKa (deg) | 26.3 ± 12.4 | 27.5 ± 10.4 | 29.2 ± 9.8 | 26.3 ± 9.4 | 22.5 ± 10.2 | .530 |
| SVAa (mm) | −31.1 ± 19.6 | −21.4 ± 20.4 | −13.6 ± 37.2 | −20.7 ± 23.0 | −15.9 ± 18.1 | .236 |
| T1PAa (deg) | 4.3 ± 5.2 | 5.4 ± 5.0 | −4.0 ± 5.2 | 7.7 ± 5.9 | 6.1 ± 6.3 | <.001 |
Abbreviations: AP, anteverted pelvis; ANOVA, analysis of variance; PT, pelvic tilt; SS, sacral slope; LL, lumbar lordosis; LT, lordosis tilt; TLK, thoracolumbar angle; TK, thoracic kyphosis; SVA, sagittal vertical axis; T1PA thoracic pelvic angle.
a Standing.