Table 1 Comparison of demographic data, sagittal parameters and postural patterns
Items | Normal adults (n = 126) | Scoliotic adults (n = 117) | P value |
|---|---|---|---|
Age (y) | 26.4 ± 3.7 (26.0, 27.1) | 26.3 ± 4.7 (25.4, 27.1) | 0.777 |
BMI (kg/m2) | 22.0 ± 3.2 (21.4, 22.6) | 22.2 ± 3.8 (21.5, 22.8) | 0.731 |
Sagittal spinopelvic parameters (mean ± SD; 95%CI) | |||
Thoracic kyphosis (°) | 39.1 ± 11.0 (37.1, 41.0) | 37.0 ± 15.0 (34.2, 39.7) | 0.214 |
Lumbar lordosis (°) | 54.0 ± 10.0 (52.3, 55.8) | 54.6 ± 12.1 (52.4, 56.8) | 0.703 |
Sacral slope (°) | 37.2 ± 6.7 (36.0, 38.3) | 39.2 ± 8.4 (37.6, 40.7) | 0.039* |
Pelvic incidence (°) | 41.2 ± 7.1 (39.9, 42.4) | 45.5 ± 10.0 (43.6, 47.3) | 0.000* |
Pelvic tilt (°) | 4.5 ± 2.4 (4.1, 4.9) | 7.9 ± 7.5 (6.5, 9.3) | 0.000* |
Spinosacral angle (°) | 131.8 ± 6.9 (130.5, 133.0) | 131.9 ± 8.9 (130.2, 133.5) | 0.925 |
Spinal tilt (°) | 94.6 ± 3.9 (93.9, 95.3) | 92.7 ± 4.2 (91.9, 93.5) | 0.000* |
Sagittal postural patterns (n, percent) | |||
Roussouly 1 | 31 (24.6%) | 25 (21.4%) | 0.665 |
Roussouly 2 | 17 (13.5%) | 20 (17.1%) | |
Roussouly 3 | 62 (49.2%) | 53 (45.3%) | |
Roussouly 4 | 16 (12.7%) | 19 (16.2%) | |
C7-subgroups (n, percent) | |||
C7-anterior | 6 (4.8%) | 29 (24.8%) | 0.000# |
C7-posterior | 120 (95.2%) | 88 (75.2%) | |