• Ningning Yang, Ming Luo, Shixin Zhao, Lei Xia, and Wengang Wang.
• Institute of Spinal Deformity, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan.
• Medicine (Baltimore). 2021 Mar 12; 100 (10): e24030e24030.

AbstractThe aim of the study was to determine if multiple intraspinal anomalies increase the risk of scoliosis correction compared to the normal intraspinal condition or 1 or 2 intraspinal anomalies in congenital scoliosis (CS) and whether correction for multiple intraspinal anomalies need to be performed with preliminary neurosurgical intervention before scoliosis correction.A total of 318 consecutive CS patients who underwent corrective surgery without preliminary neurosurgical intervention at a single institution from 2008 to 2016 were retrospectively reviewed, with a minimum of 2 years of follow-up. The patients were divided into 3 groups according to different intraspinal conditions. In the normal group (N group; n = 196), patients did not have intraspinal anomalies. In the abnormal group (A group; n = 93), patients had 1 or 2 intraspinal anomalies. In the multiple anomaly group (M group; n = 29), patients had 3 or more intraspinal anomalies including syringomyelia, split cord malformation [SCM], tethered cord, low conus, intraspinal mass, Chiari malformation or/and arachnoid cyst. The occurrence of complications as well as perioperative and radiographic data were analyzed.The incidence rate of multiple intraspinal anomalies in CS patients was 9.1% (29/318). No significant difference was observed in the perioperative outcomes or radiographic parameters at the final follow-up. There were no significant differences among the 3 groups in the total, major or neurological complication rates (all P > .05). Two patients (1 in the N group and 1 in the A group) experienced transient neurological complications, whereas no patient experienced permanent neurological deficits during surgery or follow-up.To our knowledge, the current study reported the largest cohort of intraspinal anomalies in patients with CS that has been reported in the literature. The results of our study demonstrated that patients with congenital scoliosis associated with intraspinal anomalies, even multiple intraspinal anomalies that coexist with more complex intraspinal pathologies, may safely and effectively achieve scoliosis correction without preliminary neurological intervention. More complex intraspinal pathologies do not seem to increase the risk of neurosurgical complications during corrective surgery.Copyright © 2021 the Author(s). Published by Wolters Kluwer Health, Inc.

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