Comparison of angular correction and loss of correction by patient subgroups regardless of surgical technique used.
| Variable | Angular Correctiona
(°) | P Valueb | Loss of Correctionc (°) | P Valueb |
| Body mass index (kg/m2) | ||||
| Normal (<24.9), mean ± SD (95% CI) | 14 ± 9 (11–17) | 0.0009b | 1 ± 2 (0–2) | 0.55 |
| Overweight (25.0–29.9) | 10 ± 7 (8–12) | 1 ± 3 (0–2) | ||
| Obese (>30) | 4 ± 10 (−1 to 10) | 2 ± 3 (0–4) | ||
| Fracture spinal level | ||||
| Thoracic (T1-T9) | 7 ± 8 (5–10) | 0.0003b | 1 ± 2 (0–2) | 0.15 |
| Thoracolumbar (T10-L2) | 14 ± 9 (11–16) | 1 ± 3 (0–2) | ||
| AO Classificationd | ||||
| A—compression fractures | 7 ± 9 (4–11) | 0.026b | 1 ± 3 (0–2) | 0.59 |
| B—tension band injuries | 13 ± 8 (10–16) | 1 ± 3 (0–2) | ||
| C—translational injuries | 12 ± 9 (9–15) | 1 ± 2 (−1 to 2) | ||
↵a Angular correction is the differences between preoperative and immediate postoperative radiograph Cobb angle.
↵b Indicates statistically significant values with P < 0.05.
↵c Loss of correction is the difference between immediate postoperative and last follow-up radiograph Cobb angle.
↵d Adapted from: Vaccaro, A. R., et al. (2013). AOSpine thoracolumbar spine injury classification system: fracture description, neurological status, and key modifiers. Spine (Phila Pa 1976), 38(23), 2028–2037.