Surgical outcomes in children under 10 years old in the treatment of congenital scoliosis due to single nonincarcerated thoracolumbar hemivertebra: according to the age at surgery

Journal of Orthopaedic Surgery and Research

Bo Gao¹  Shuilin Shao¹  Zhiming Chen¹  Jigong Wu¹  Jiaxu Wang¹  Haixia Li¹ 

[1] Department of Spine Surgery, Chinese People’s Liberation Army Strategic Support Force Characteristic Medical Center, 100101, Beijing, China;

关键词: Congenital scoliosis;    Thoracolumbar hemivertebra resection;    Posterior approach;    Pedicle screw fixation;    Distal adding-on;   

DOI  :  10.1186/s13018-021-02865-w

来源: Springer

【 摘 要 】

PurposeHemivertebra is one of the common pathogenesis of congenital scoliosis. The timing of operation is undefined. Our study compared the surgical outcomes in children under age 10 years with scoliosis due to single nonincarcerated thoracolumbar hemivertebra according to the age at surgery.MethodsFrom January 2009 to August 2017, we retrospectively investigated 34 consecutive cases of congenital scoliosis treated by posterior hemivertebra resection and fusion with pedicle screw fixation. All cases were divided into two groups according to the age at surgery and followed-up for at least 2 years, group 1 (≤ 5 years old), and group 2 (5 to 10 years old).ResultsThe mean Cobb angle of the main curve was improved from 48.58° to 15.53° (68.05%) in group 1, and from 43.73° to 11.33° (75.43%) in group 2. The segmental curve was improved from 44.16° to 11.53° (74.64%) in group 1, and the segmental curve was consistent with the main curve in group 2. The mean segmental kyphosis was improved from 27.50° to 8.42° (67.40%) in group 1, and from 29.00° to 5.00° (84.73%) in group 2. Five patients developed distal adding-on, and four patients were found proximal junctional kyphosis during the follow-up.ConclusionNot all the deformities caused by single nonincarcerated thoracolumbar hemivertebra would progress greatly with the spinal growth. No significant statistical differences were found in the coronal and sagittal correction rate between the two groups. A limited delayed surgery after 5 years but before 10 years of age with close follow-up can achieve satisfied results.

【 授权许可】

CC BY