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Hemivertebra resection with posterior unilateral intervertebral fusion and transpedicular fixation for congenital scoliosis: results with at least 3 years of follow-up

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Abstract

Purpose

The main treatment for congenital scoliosis is posterior hemivertebra resection with bilateral transpedicular fixation. Reports describing posterior unilateral intervertebral fusion and transpedicular screw fixation are rare, with no long-term follow-up results, especially in older children. Retrospective analysis of the long-term outcomes of unilateral fusion and fixation after hemivertebra resection for congenital scoliosis.

Methods

From April 2004 to May 2012, 19 consecutive cases (12 males; age range 2.3–13.4 years) of congenital scoliosis treated by hemivertebra resection with posterior unilateral or bilateral exposure and unilateral intervertebral fusion with transpedicular screw instrumentation alone were investigated retrospectively. All cases were followed-up for at least 3 years.

Results

The mean Cobb angle of the segmental scoliosis was improved from 34.8 to 13.4° (correction rate 61.5 %). The mean Cobb angle of the segmental kyphosis was improved from 23.5 to 5.8° (correction rate 75.3 %). The mean correction rates of compensatory cranial and caudal curves were 46.1 and 54.5 %, respectively. 11 patients (57.8 %) exhibited continuous segmental curve improvement during the follow-up. One pedicle fracture and one instrumentation failure were recorded.

Conclusions

Unilateral transpedicular screw fixation provides satisfactory correction of the spinal deformity in both very young and older children. Unilateral intervertebral fusion and transpedicular fixation represents an advisable alternative method for the correction of congenital scoliosis and has advantages of reduced trauma, less surgery time and lower expense. Furthermore, the non-fused concave side offers the opportunity for correction of subsequent spine deformity.

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Acknowledgments

The authors thank Dr. Lv Zhi for language editing and Luo Xue’e for statistical analysis.

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Authors and Affiliations

  1. Department of Orthopedics, Beijing Chao-Yang Hospital, Capital Medical University, Gongti South Road, No. 8, Chaoyang District, Beijing, 100020, China

    Yi Feng, Yong Hai & Lei Zang

  2. Department of Orthopedics, The Second Hospital of Shanxi Medical University, Taiyuan, Shanxi, China

    Sheng Zhao

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  1. Yi Feng
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  2. Yong Hai
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  3. Sheng Zhao
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  4. Lei Zang
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Correspondence to Yong Hai.

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Feng, Y., Hai, Y., Zhao, S. et al. Hemivertebra resection with posterior unilateral intervertebral fusion and transpedicular fixation for congenital scoliosis: results with at least 3 years of follow-up. Eur Spine J 25, 3274–3281 (2016). https://doi.org/10.1007/s00586-016-4556-7

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  • DOI: https://doi.org/10.1007/s00586-016-4556-7

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