Table 3. All radiological parameters (X ± s).
| Group A1 | Group A2 | Group B1 | PA1-A2 | PA1-B1 | PA2-B1 | |
|---|---|---|---|---|---|---|
| Preoperative kyphosis(°) | 20.3±18.3 | 32.1±17.8 | 24.5±15.3 | 0.795 | 0.722 | 0.985 |
| Postoperative kyphosis(°) | 24.5±17.7* | 21.8±18.7 | 23.8±17.5 | 0.589 | 0.819 | 0.713 |
| Follow-up kyphosis(°) | 25.6±17.8*& | 24.1±18.5& | 26.3±17.6& | 0.582 | 0.885 | 0.675 |
| kyphosis correction(°) | 4.4±8.3 | 2.3±32.7 | 5.4±12.5 | 0.851 | 0.748 | 0.788 |
| Loss of correction (°) | 1.1±1.8* | 2.3±0.8* | 2.5±2.0*# | 0.054 | 0.012 | 0.796 |
| Preoperative intervertebral height(cm) | 11.9±2.4 | 15.4±3.0 | 12.3±1.8 | 0.001 | 0.444 | 0.001 |
| Postoperative intervertebral height(cm) | 13.7±2.6* | 17.7±3.8* | 14.2±2.0* | 0.001 | 0.478 | 0.024 |
| Follow-up intervertebral height (cm) | 12.9±2.5*& | 16.4±4.0*& | 12.0±2.2*& | 0.027 | 0.018 | 0.010 |
| intervertebral height correction (cm) | 1.8±1.1 | 2.3±1.4 | 1.8±1.1 | 0.307 | 0.978 | 0.336 |
| Loss of intervertebral height(cm) | 0.8±0.6* | 1.3±1.0* | 2.2±1.2*# | 0.105 | 0.000 | 0.055 |
| Bone fusion(cm) | 9.4±6.1 | 10.2±2.7 | 8.7±3.6 | 0.714 | 0.594 | 0.254 |
*, &, # Significant difference at P<0.05 compared with pre-operation, post-operation, and group A1, respectively.