Effect of Direct Vertebral Rotation in Single Thoracic Adolescent Idiopathic Scoliosis: Better 3-Dimensional Deformity Correction

Gang Un Kim, Jae Hyuk Yang, Dong Gune Chang, Se Il Suk, Seung Woo Suh, Kwang Sup Song, Ki Youl Nam, In Soo Oh, Hyung Youl Park, Sang Il Kim, Young Hoon Kim, Kee Yong Ha

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Objective: To analyze the effects of direct vertebral rotation (DVR) on radiologic outcomes in the treatment of thoracic adolescent idiopathic scoliosis after selective thoracic fusion with pedicle screw instrumentation. Methods: Adolescent idiopathic scoliosis patients with single thoracic curves (n = 110) treated by selective thoracic fusion with a minimum of 2 years of follow-up were retrospectively analyzed. The patients were separated into 2 groups: non-DVR (n = 63) and DVR (n = 47). Results: There was a significant difference in fused segments between the non-DVR and DVR groups (P < 0.001). There was also a significant difference in main thoracic curve postoperatively (P = 0.001) and at the last follow-up (P = 0.006) between the non-DVR and DVR groups. However, there was no significant difference in proximal thoracic and lumbar curves postoperatively (proximal thoracic curve: P = 0.186; lumbar curve: P = 0.155) and at the last follow-up (proximal thoracic curve: P = 0.250; lumbar curve: P = 0.060) between the 2 groups. Significant improvements in the lowest instrumented vertebra tilt and disc angle were noted but then slight deteriorations in such were observed during the follow-up period in the non-DVR group. The prevalence of unsatisfactory results was 20.6% (13 of 63) in the non-DVR group and 19.1% (9 of 47) in the DVR group, with no significant difference (P = 0.522). Conclusions: For correcting single thoracic adolescent idiopathic scoliosis by selective thoracic fusion with pedicle screw instrumentation, the addition of DVR to the surgical procedure showed comparable radiologic outcomes compared with non-DVR procedures.

Original languageEnglish
Pages (from-to)e401-e408
JournalWorld Neurosurgery
Volume129
DOIs
Publication statusPublished - 2019 Sep

Keywords

  • Adding-on
  • Adolescent idiopathic scoliosis
  • Fusion level
  • Pedicle screw instrumentation
  • Selective thoracic fusion
  • Thoracic scoliosis

ASJC Scopus subject areas

  • Surgery
  • Clinical Neurology

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