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 Chen1ABCDEFG, Chong Liu1ABC, Shian Liao1BC, Chaojie Yu1DE, Tuo Liang1BC, Zhaojie Qin1BD, Shengsheng Huang1AB, Xuhua Sun1BC, Ming Yi1AB, Zhaojun Lu1AD, Zequn Wang1A, Guoyong Xu1B, Zide Zhang1C, Jiarui Chen1D, Jie Jiang1C, Xinli Zhan1AFG*DOI: 10.12659/MSM.929149
Med Sci Monit 2021; 27:e929149
Figure 1 Representative case 1: an 18-year-old man with Lenke 1A adolescent idiopathic scoliosis. (A) Preoperative standing film showed a 15-mm center of a C7 plumb line to the center sacral vertical line (C7-CSVL) and a 60.1° main thoracic curve Cobb angle in the coronal plane. (B) Preoperative standing film showed a 27-mm sagittal vertical axis (SVA), 1.8° cervical lordosis (CL), 8.5° thoracic kyphosis (TK), 41.2° lumbar lordosis (LL), 48.8° pelvic incidence (PI), 39.6°sacral slope (SS), and 9.2° pelvic tilt (PT) in the sagittal plane. (C) Preoperative side-bending Cobb angle was 37.9°. (D) At 6 months after posterior thoracic fusion, the postoperative standing film showed a 3.8-mm C7-CSVL and a 26.3° main thoracic curve Cobb angle. (E) At 6 months after posterior thoracic fusion, the postoperative standing film showed a 29.4-mm SVA, 1.4° CL, 19.1° TK, 49° LL, 42.8° PI, 31.2° SS, and 11.6° PT. (F) At the last follow-up, the postoperative standing film showed a 0.9-mm C7-CSVL and a 21.5° main thoracic curve Cobb angle. (G) At the last follow-up, the postoperative standing film showed a 22.2-mm SVA, 2.5° CL, 20.5° TK, 52.3° LL, 41.4° PI, 33.8° SS, and 7.2° PT.