Table 2.
Radiographic characteristics
| Hook-hybrid group | Screw group | P-value* | |
|---|---|---|---|
| Mean | Mean | ||
| Global balance | |||
| Preoperative (mm) | 18.4 | 19.5 | 0.7658 |
| Postoperative (mm) | 11.6 | 18.9 | 0.0572 |
| Major curve Cobb angle (°) | |||
| Preoperative | 54.1 | 58.7 | 0.0922 |
| Postoperative | 23.0 | 16.0 | 0.0007 |
| Absolute correction | 31.1 | 42.7 | <0.0001 |
| % correction | 56.9 | 73.0 | <0.0001 |
| Upper thoracic curve (°) | |||
| Preoperative | 25.3 | 27.8 | 0.4769 |
| Postoperative | 17.2 | 13.0 | 0.1149 |
| Absolute correction | 8.1 | 14.8 | 0.0082 |
| % correction | 27.8 | 50.0 | 0.0164 |
| Lumbar curve (°) | |||
| Preoperative | 33.8 | 35.5 | 0.6293 |
| Postoperative | 11.3 | 10.5 | 0.7214 |
| Absolute correction | 22.5 | 25.0 | 0.3465 |
| % correction | 68.0 | 73.0 | 0.3254 |
| Instrumented curve (°) | |||
| Preoperative | 32.0 | 23.1 | 0.0513 |
| Postoperative | 16.0 | 9.0 | 0.0023 |
| Absolute correction | 16.0 | 14.1 | 0.6309 |
| % correction | 34.7 | 44.8 | 0.5833 |
* Statistically significant if P < 0.05