Anterior Vertebral Body Tethering for Scoliosis Patients With and Without Skeletal Growth Remaining: A Retrospective Review With Minimum 2-Year Follow-Up

Anterior vertebral body tethering (AVBT) has been approved for skeletally immature (IM) adolescent idiopathic scoliosis patients, but the role of AVBT in patients with minimal remaining skeletal growth is controversial. The purpose of this study was to compare minimum 2-year (YR2) outcomes in skelet...

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Bibliographic Details
Published in:International journal of spine surgery 2023-02, Vol.17 (1), p.6-16
Main Authors: Treuheim, Theodor Di Pauli von, Eaker, Lily, Markowitz, Jonathan, Shankar, Dhruv, Meyers, James, Lonner, Baron
Format: Article
Language:English
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Summary:Anterior vertebral body tethering (AVBT) has been approved for skeletally immature (IM) adolescent idiopathic scoliosis patients, but the role of AVBT in patients with minimal remaining skeletal growth is controversial. The purpose of this study was to compare minimum 2-year (YR2) outcomes in skeletally IM patients vs those with minimal remaining skeletal growth. Patients with single thoracic AVBT were grouped by their preoperative (PR) skeletal maturity: IM ( = 16, Risser 0-2) vs mature (M, = 19, Risser 3-5). Outcomes were assessed at PR, first erect (FE), and YR2. Median (range) was compared with nonparametric tests ( < 0.05). The PR age was 12.5 (9-16) vs 15 (12-18) years with major Cobb 51° (36°-69°) and 49° (40°-69°) for IM and M, respectively. At FE, there was no difference in correction; however, at YR2, the IM group yielded a lower residual curve (15° [-16° to 38°] vs 29° [12°-42°], = 0.008). Thoracolumbar/lumbar curves were corrected without group differences. Clinically successful correction (
ISSN:2211-4599
2211-4599
DOI:10.14444/8357