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 CurvatureLiyi 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*
Med Sci Monit 2021; 27:e929149
Figure 2 Representative case 2: a 13-year-old girl with Lenke 1A adolescent idiopathic scoliosis. (A) Preoperative standing film showed an 18-mm center of a C7 plumb line to the center sacral vertical line (C7-CSVL) and a 68.2° main thoracic curve Cobb angle in the coronal plane. (B) Preoperative standing film showed a 26-mm sagittal vertical axis (SVA), 16.2° cervical lordosis (CL), 23.1° thoracic kyphosis (TK), 44.7° lumbar lordosis (LL), 43.7° pelvic incidence (PI), 36.2° sacral slope (SS), and 7.7° pelvic tilt (PT) in the sagittal plane. (C) Preoperative side-bending Cobb angle was 20.1°. (D) At 6 months after posterior thoracic fusion, the postoperative standing film showed a 3-mm C7-CSVL and a 10.7° main thoracic curve Cobb angle. (E) At 6 months after posterior thoracic fusion, the postoperative standing film showed an 8-mm SVA, 10.6° CL, 27.5° TK, 43.2° LL, 35° PI, 25.6° SS, and 9.4°PT. (F) At the last follow-up, the postoperative standing film showed a 2-mm C7-CSVL and an 8.4° main thoracic curve Cobb angle. (G) At the last follow-up, the postoperative standing film showed a 17-mm SVA, 6.3° CL, 24.2° TK, 50.3° LL, 39.2° PI, 38.1° SS, and 1.1° PT.