20 February 2021: Clinical Research
A Retrospective Study of Factors Associated with Restoration of Thoracic Kyphosis in 43 Patients with Adolescent Idiopathic Scoliosis with Lenke Type 1 Curvature
Liyi Chen ABCDEFG* , Chong Liu ABC* , Shian Liao BC , Chaojie Yu DE , Tuo Liang BC , Zhaojie Qin BD , Shengsheng Huang AB , Xuhua Sun BC , Ming Yi AB , Zhaojun Lu AD , Zequn Wang A , Guoyong Xu B , Zide Zhang C , Jiarui Chen D , Jie Jiang C , Xinli Zhan AFG*DOI: 10.12659/MSM.929149
Med Sci Monit 2021; 27:e929149
Table 5 Univariate analysis of parameters between the 2 groups (mean±standard deviation).
| Parameters | Group 1 | Group 2 | P value |
|---|---|---|---|
| Main thoracic curve Cobb angle, degree | 62.75±15.11 | 62.59±16.47 | 0.975 |
| Side-bending Cobb | 39.13±17.43 | 32.19±15.69 | 0.186 |
| C7-CSVL, mm | 19.01±10.75 | 14.05±8.13 | 0.094 |
| SVA, mm | 23.29±13.25 | 34.00±21.07 | 0.083 |
| CL, degree | 11.50±11.22 | 12.52±9.52 | 0.450 |
| TK, degree | 13.38±7.15 | 22.59±14.19 | 0.026* |
| LL, degree | 44.63±13.32 | 55.33±9.01 | 0.003** |
| PI, degree | 47.56±9.42 | 47.70±7.17 | 0.956 |
| SS, degree | 40.38±12.71 | 41.15±7.12 | 0.825 |
| PT, degree | 7.50±10.17 | 6.56±5.15 | 0.733 |
| Postoperative | |||
| Main thoracic curve Cobb angle, degree | 20.38±8.09 | 21.89±10.31 | 0.618 |
| C7-CSVL, mm | 9.73±7.32 | 10.82±9.17 | 0.687 |
| SVA, mm | 17.49±13.07 | 20.99±15.11 | 0.436 |
| CL, degree | 15.06±6.78 | 16.85±7.87 | 0.640 |
| LL, degree | 46.38±10.53 | 52.67±11.38 | 0.079 |
| PI, degree | 48.38±12.16 | 50.48±8.31 | 0.504 |
| SS, degree | 38.94±10.59 | 39.70±6.43 | 0.796 |
| PT, degree | 9.50±6.48 | 10.56±6.80 | 0.619 |
| Ponte osteotomy | 10 | 5 | 0.003** |
| Fusion segment | 11.62±1.09 | 10.85±1.41 | 0.072 |
| Screw density | 1.23±0.15 | 1.19±0.22 | 0.573 |
| Preoperative flexibility, % | 38.99±16.04 | 49.79±18.00 | 0.055 |
| Main thoracic curve correction rate, % | 66.77±12.80 | 65.71±11.76 | 0.784 |
| C7-CSVL – center of a C7 plumb line to the center sacral vertical line; CL – cervical lordosis; LL – lumbar lordosis; PI – pelvic incidence; PT – pelvic tilt; SS – sacral slope; SVA – sagittal vertical axis; TK – thoracic kyphosis. * ** | |||