• World Neurosurg · Jul 2021

    The clinical and radiologic outcomes of patients with different three-dimensional hemivertebra morphologies undergoing posterior-only hemivertebra resection and fusion.

    • Xudong Wang, Xianjun Su, Tailong Chen, Nan Zhou, and Lei Xia.
    • Department of Orthopaedic Surgery, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, P. R. China.
    • World Neurosurg. 2021 Jul 1; 151: e693-e699.

    ObjectiveTo compare the clinical and radiologic outcomes of patients with different 3-dimensional (3D) hemivertebra morphologies undergoing posterior-only hemivertebra resection and fusion.MethodsThe files of patients with congenital scoliosis (CS) due to single hemivertebra undergoing posterior-only hemivertebra resection and fusion from January 2010 to January 2018 were reviewed. After evaluating the 3D computed tomography images, CS patients were divided into a unison hemivertebra group and a discordant hemivertebra group. Clinical outcomes, radiologic outcomes, and incidence of complications were compared.ResultsA total of 42 consecutive patients with CS patients due to a single hemivertebra undergoing posterior-only hemivertebra resection and fusion were included in this study. The Cobb angle of the segmental curve was significantly improved postoperatively and at the last follow-up in both groups (all P < 0.05). At both postoperation and the last follow-up, no significant differences were found in the incidence of complications, Cobb angle of the segmental curve, correction rate of the segmental curve, or other radiologic outcomes between the unison hemivertebra group and discordant hemivertebra group (all P > 0.05). Compared with the unison hemivertebra group, increased operation time (P = 0.006) and intraoperative blood loss (P = 0.037) were found in the discordant hemivertebra group.ConclusionsFor CS patients with unison hemivertebra or discordant hemivertebra, satisfactory radiologic results were obtained by posterior-only hemivertebra resection and fusion. In terms of surgery, the radiologic outcomes of discordant hemivertebra patients were similar to those of unison hemivertebra patients, but discordant hemivertebrae could easily result in longer operation time and more intraoperative blood loss.Copyright © 2021 Elsevier Inc. All rights reserved.

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