Variables | Group DD (n = 36) | Group NDD (n = 31) | P |
---|---|---|---|
Age (year) | 59.6 ± 8.3 | 58.8 ± 8.9 | 0.706a |
Gender | Â | Â | 0.355c |
 Male | 8 | 10 |  |
 Female | 28 | 21 |  |
BMI (kg/m2) | 22.95 ± 3.43 | 23.93 ± 2.61 | 0.207a |
Instrumented vertebrae number | Â | Â | 0.927c |
 4–6 | 9 | 9 |  |
 7–9 | 23 | 19 |  |
 > 9 | 4 | 3 |  |
Follow-up period (year) | 4.70 ± 1.67 | 5.02 ± 1.77 | 0.377b |
Pelvic incidence (°) | 48.53 ± 7.84 | 54.03 ± 7.89 | 0.006a |
Pelvic tilt (°) | 22. 53 ± 4.33 | 24.58 ± 4.27 | 0.058a |
Sacral slope (°) | 26.19 ± 6.38 | 29.13 ± 5.47 | 0.051a |
Cobb angle (°) | 46.11 ± 6.03 | 44.95 ± 7.92 | 0.402a |
Sagittal vertical axis (cm) | 6.65 ± 3.09 | 4.12 ± 2.67 | 0.001a |
Coronal vertical axis (cm) | 2.76 ± 1.22 | 2.35 ± 1.49 | 0.235a |
Lumbar lordosis (°) | 37.43 ± 8.70 | 35.84 ± 9.43 | 0.482a |
Thoracic kyphosis (°) | 37.23 ± 9.59 | 35.51 ± 8.86 | 0.457a |
Thoracolumbar kyphosis (°) | 11.53 ± 4.81 | 9.96 ± 4.03 | 0.162a |
L5 oblique angle (°) | 8.26 ± 2.38 | 7.51 ± 2.61 | 0.291a |
Sacrum-femoral distance (cm) | 6.76 ± 2.56 | 4.43 ± 2.13 | < 0.001b |
Preoperative radiographic score | 0.81 ± 0.57 | 0.87 ± 0.49 | 0.583b |
Radiographic score at last follow-up | 1.83 ± 0.60 | 0.87 ± 0.49 | < 0.001b |