ArticleSpine deformity2026
Bilateral anterior lumbar vertebral body tethering: a feasibility cohort study.
Article in Spine deformity, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
purposeAnterior vertebral body tethering (VBT) is a viable option for children with idiopathic scoliosis. Treating double major curves with bilateral VBT may allow patients to avoid spinal fusion while improving the coronal Cobb angle.
methodsA single center retrospective study was conducted to identify all patients who underwent bilateral VBT (lowest instrumented vertebra L3 or 4) with minimum 2-year follow-up. Clinical and radiographic parameters were collected, including complications and reoperations. Statistical analysis was performed utilizing Students' t-test.
resultsSeventy-three patients (67 female, 91.8%) underwent bilateral VBT with mean follow-up of 4.2 ± 1.5 years. Preoperatively, all patients were skeletally immature (age 12.7 ± 1.2 years with a Sanders score of 3.3 ± 0.8 and Risser grade of 0.6 ± 0.8). The preoperative lumbar Cobb angle was 51.1° ± 7.9° which corrected to 20.7° ± 11.3° at most recent follow-up (p < 0.01) and the thoracic Cobb angle measured 52.3° ± 9.0° which corrected to 27.0° ± 11.3° (p < 0.01) at most recent follow-up. At latest follow-up, 51/73 (69.9%) had a thoracic Cobb angle <30°, 59/73 patients (80.8%) had a lumbar Cobb angle <30°, and 47/73 (64.4%) had both thoracic and lumbar Cobb angles <30°. 15 patients (20.5%) underwent 17 reoperations with overcorrection being the most common indication (8/17, 47.1%). Broken tethers led to reoperation in 3/17 instances (17.6%). Five patients (6.8%) eventually required posterior spinal fusion.
conclusionsBilateral VBT is a safe procedure and may be a viable option for patients with double curves, with the majority of curves measuring <30° at most recent follow-up. Surgeons can use these data to help patients and parents make informed decisions regarding treatment options.
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