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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

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.

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Medical Science Monitor eISSN: 1643-3750
Medical Science Monitor eISSN: 1643-3750