Table 4 Comparison of the sagittal thoracic kyphotic of patients in different groups before, after the surgery and at the last follow-up
Group/thoracic lordosis angle | n | Preoperative | Postoperative | Last follow-up | Correction angle |
|---|---|---|---|---|---|
Hyper group | |||||
A | 3 | 45.3° ± 5.5° | 27.0° ± 2.0° | 25.7° ± 1.5° | 18.3° ± 2.5° |
B | 4 | 43.0° ± 1.4° | 30.5° ± 1.3° | 30.3 ± 1.0° | 12.5° ± 1.3° |
t | 1.740 | − 2.842 | − 4.927 | 4.063 s | |
P | 0.098 | 0.036 | 0.004 | 0.010 | |
Normal group | |||||
A | 18 | 21.3° ± 6.7° | 28.4° ± 4.6° | 27.3° ± 4.4° | − 7.1° ± 10.3° |
B | 19 | 23.7° ± 5.5° | 24.4° ± 6.2° | 23.6° ± 6.3° | − 0.7° ± 4.6° |
t | − 1.163 | 2.246 | 2.089 | − 2.413 | |
P | 0.253 | 0.031 | 0.044 | 0.024 | |
Hypo group | |||||
A | 11 | 7.3° ± 1.9° | 18.4° ± 3.2° | 17.5° ± 3.2° | − 11.1° ± 2.9° |
B | 11 | 8.0° ± 1.4° | 11.5° ± 2.4° | 10.9° ± 2.5° | − 3.5° ± 2.2° |
t | − 1.000 | 5.706 | 5.302 | − 6.877 | |
P | 0.329 | 0.000 | 0.000 | 0.000 | |