Demographic and radiographic comparisons between patients treated conservatively and those undergoing surgery.
| Preoperative Data | Surgical | Conservative | Student t/χ2 |
| Demographic parameters | |||
| Age, y | 36.5 ± 10.6 | 38.6 ± 14.2 | 0.55 |
| Gender, F/M | 86.4%/13.6% | 60%/40% | 0.038a |
| Height, cm | 151.7 ± 10.1 | 157.9 ± 11.6 | 0.07 |
| Weight, kg | 59.2 ± 14.5 | 65.9 ± 16 | 0.15 |
| BMI | 25.9 ± 4.8 | 26.4 ± 5 | 0.76 |
| Comorbidities | 40.9% | 33.3% | 0.121 |
| Previous surgery | 45.5% | 23.3% | 0.093 |
| Deformity type 1 | 0.746 | ||
| Scoliosis | 77.3% | 73.3% | |
| Kyphosis | 22.7% | 26.7% | |
| Deformity type 2 | 0.811 | ||
| Simple HV | 64% | 56% | |
| Multiple HV | 30% | 39% | |
| Segment defects | 6% | 5% | |
| Deformity Location | 0.166 | ||
| Proximal thoracic | 4.5% | 16.7% | |
| Main thoracic | 36.4% | 46.7% | |
| Thoracolumbar | 31.8% | 10% | |
| Lumbar | 27.3% | 26.7% | |
| Radiographic parameters | |||
| Main Cobb, ° | 59.3 ± 33.4 | 64.8 ± 27.1 | 0.52 |
| Coronal balance, mm | −9.3 ± 36.9 | −0.8 ± 26.3 | 0.42 |
| SVA, mm | 14.2 ± 42.8 | 19.6 ± 56.1 | 0.73 |
| Global tilt, ° | 22.9 ± 15.3 | 18.6 ± 14.6 | 0.36 |
| T10-L2 kyphosis, ° | 13.7 ± 31.2 | 25.4 ± 35 | 0.24 |
| PI-LL mismatch, ° | −0.7 ± 26 | −2.9 ± 24.3 | 0.765 |
| LL, ° | 49.2 ± 27.4 | 57.3 ± 23.6 | 0.265 |
| PI, ° | 47.8 ± 13.9 | 51.2 ± 16.5 | 0.458 |
| T-DAR | 8.9 ± 4.8 | 9.9 ± 4.6 | 0.464 |
Data presented as mean ± SD and percentages.
aStatistically significant.
BMI, body mass index; HV, hemivertebrae; LL, lumbar lordosis; PI, pelvic incidence; SVA, sagittal vertical axis; T-DAR, total deformity angular ratio.