ArticleSpine deformity2024
Anterior vertebral tethering for adolescent idiopathic scoliosis: our initial ten year clinical experience.
Article in Spine deformity, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 5 papers.
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Who cites it
5 citing papers in PubMed.
- Improved outcomes after anterior vertebral tethering for AIS using ideal versus acceptable indications.Spine deformity · 2026Article
- Identifying functional movement deficits in mild to moderate adolescent idiopathic scoliosis: a cross-sectional study.Frontiers in pediatrics · 2026Article
- Immediate chest tube removal at the completion of anterior vertebral tethering is well-tolerated without an increased risk of pulmonary complication.Spine deformity · 2025Article
- Where does the tether break in vertebral body tethering cases? Clinical insights from revision cases after tether breakage.Spine deformity · 2025Article
- Outcomes in patients with tether rupture after anterior vertebral tethering for adolescent idiopathic scoliosis: the good, the bad, and the ugly.Spine deformity · 2025Article
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Authors and funding
6 authors.
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Abstract
backgroundAnterior vertebral tethering (AVT) is a minimally invasive alternative to fusion surgery for adolescent idiopathic scoliosis (AIS) that offers the potential for definitive scoliosis treatment with the possibility of preservation of the growth, motion, function and overall health of the spine. This study represents our first ten years using AVT to treat AIS.
methodsIn this retrospective review we analyzed our first 74 AIS patients treated with AVT 2010-2020. Multiple Lenke curve types 33-70° were treated with skeletal maturity spanning Risser -1 to 5.
resultsOf 74 consecutive AIS patients treated with AVT, 52 patients (47 female, 5 male) had sufficient 2-year follow-up for inclusion. Forty-six of these 52 patients (88%) with 65 curves (35T, 30TL/L) were satisfactorily treated with AVT demonstrating curve correction from 48.6° pre-op (range 33°-70°) at age 15.1 years (range 9.2-18.8) and skeletal maturity of Risser 2.8 (range -1 to 5) to 23.2° post-op (range 0°-54°) and 24.0° final (range 0°-49°) at 3.3 years follow-up (range 2-10 years). Curve corrections from pre-op to post-op and pre-op to final were both significant (p < 0.001). The 0.8° change from post-op to final was not significant but did represent good control of scoliosis correction over time. Thoracic kyphosis and lumbar lordosis were maintained in a normal range throughout while axial rotation demonstrated a slight trend toward improvement. Skeletal maturity of Risser 4 or greater was achieved in all but one patient. Four of the 52 patients (8%) required additional procedures for tether rupture (3 replacements) or overcorrection (1 removal) to achieve satisfactory treatment status after AVT. An additional 6 of the 52 patients (12%), however, were not satisfactorily treated with AVT, requiring fusion for overcorrection (2) or inadequate correction (4).
conclusionsIn this study, AIS was satisfactorily treated with AVT in the majority of patients over a broad range of curve magnitudes, curve types, and skeletal maturity. Though late revision surgery for overcorrection, inadequate correction, or tether rupture was not uncommon, the complication of overcorrection was eliminated after our first ten patients by a refinement of indications. LEVEL OF EVIDENCE: IV.
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