Introduction Modification of anterior spinal growth is becoming increasingly adopted as a form of treatment for patients with idiopathic scoliosis, given the reported long-term concerns of spinal fusion.1–11 Anterior vertebral body tethering (AVBT) may be used in an attempt to correct the deformity and prevent progression of the curve by exploiting the Heuter-Volkman principle,12 and has been shown to be efficacious in experimental studies.13–21 To date, however, little has been published...