摘要
Importance Congenital hemivertebra is commonly treated with posterior hemivertebra resection with bilateral transpedicular fixation.However,implant‐related complications are common in children younger than 5 years old who undergo this surgical procedure.Objective To present the preliminary clinical and radiological outcomes of children younger than 5 years old treated by posterior hemivertebra resection and 3‐rod fixation technique.Methods From January 2016 to December 2017,14 consecutive patients of congenital scoliosis with 16 hemivertebrae were retrospectively reviewed,including 5 girls and 9 boys,aged between 25 and 55 months old(average,37.6 months).All patients underwent posterior hemivertebra resection with short fixation with bilateral pedicle screws and a convex lamina hook.Surgical complications and corrective outcomes were assessed based on the clinical charts and spinal radiographs with a minimum 24‐month follow‐up.Results The mean Cobb angle of the main curve was 38.4°before surgery,8.5°after surgery,and 8.7°at final follow‐up.In the compensatory cranial curve,the preoperative Cobb angle of 16.8°was corrected to 8.1°postoperatively and was 10.3°at final follow‐up.In the compensatory caudal curve,the preoperative Cobb angle of 15.9°improved to 5.3°postoperatively and was 7.8°at final follow‐up.The segmental kyphosis was corrected from 13.5°to 0.5°and was 1.1°at final follow‐up.There were no crankshaft phenomena,no proximal kyphosis,and no complications related to the instrumentation.Interpretation Posterior hemivertebra resection with instrumentation with bilateral pedicle screws and a convex lamina hook can achieve rigid fixation and deformity correction.
