Variables | Postoperative neck tilt group CAT≧5o (n = 41) | Postoperative non-neck tilt group CAT<5o (n = 61) | P value |
---|---|---|---|
Demographic parameters | |||
Age (years) | 14.81 ± 2.44 | 14.74 ± 1.78 | 0.897 |
Risser sign (o) | 3.12 ± 1.66 | 3.43 ± 1.31 | 0.305 |
Gender (male/female) | 15/26 | 20/41 | 0.692 |
UIV-T1 (segment) (0/1/2/3/4/5) (n) | 3/4/18/9/7/0 | 4/6/18/27/4/2 | 0.118 |
Coronal parameters | |||
Preoperative CAT (o) | 3.78 ± 3.21 | 2.95 ± 3.78 | 0.252 |
Preoperative T1 tilt (o) | 5.16 ± 6.31 | 4.64 ± 4.90 | 0.640 |
Postoperative T1 tilt (o) | 6.02 ± 3.46 | 3.82 ± 3.60 | 0.003 |
Preoperative PTC (o) | 31.56 ± 8.06 | 24.46 ± 10.59 | < 0.001 |
Postoperative PTC (o) | 22.76 ± 7.87 | 15.44 ± 7.73 | < 0.001 |
Preoperative AVT of PTC (mm) | 24.28 ± 14.07 | 18.82 ± 15.63 | 0.073 |
Postoperative AVT of PTC (mm) | 10.29 ± 3.14 | 5.71 ± 3.95 | < 0.001 |
Preoperative MTC (o) | 48.34 ± 9.39 | 48.02 ± 13.36 | 0.893 |
Postoperative MTC (o) | 17.85 ± 8.07 | 20.98 ± 10.55 | 0.111 |
Preoperative AVT of MTC (mm) | 53.81 ± 9.85 | 49.43 ± 12.83 | 0.066 |
Postoperative AVT of MTC (mm) | 15.52 ± 7.94 | 14.67 ± 8.78 | 0.615 |
Preoperative TL/LC (o) | 28.19 ± 12.93 | 29.21 ± 10.43 | 0.662 |
Postoperative TL/LC (o) | 10.63 ± 6.18 | 13.05 ± 6.94 | 0.075 |
Preoperative AVT of TL/LC (mm) | 7.21 ± 5.14 | 7.10 ± 6.22 | 0.819 |
Postoperative AVT of TL/LC (mm) | 8.01 ± 5.67 | 7.66 ± 4.10 | 0.743 |
Preoperative coronal balance (mm) | 12.63 ± 11.66 | 11.48 ± 8.20 | 0.560 |
Postoperative coronal balance (mm) | 4.32 ± 5.86 | 9.61 ± 6.76 | < 0.001 |
Shoulder balance | |||
Preoperative CA (o) | 1.29 ± 2.26 | 2.30 ± 2.90 | 0.062 |
Postoperative CA (o) | 1.76 ± 1.51 | 2.05 ± 1.58 | 0.352 |
Preoperative RSH (mm) | 8.37 ± 8.35 | 8.05 ± 12.47 | 0.887 |
Postoperative RSH (mm) | 6.80 ± 5.61 | 7.95 ± 5.81 | 0.325 |