Vertebral Body Tethering (VBT), also known as anterior scoliosis correction (ASC) or the Tether, is performed anteriorly (through the side) using small incisions called portals with a scope and camera placed for visualization and access to the spine. These small incisions result in minimal scarring that is well hidden under the arm.
The muscles of the side are not cut but carefully separated, making recovery faster and allowing strength and function to return more quickly than with a spinal fusion. Through the portals, the surgeon places screws in the spine bones (the vertebrae) and applies a flexible tether. The idea is that the tension on the tether pulls the spine back into its proper alignment, eliminating the scoliosis curve.