ASC OR VBT

Two different techniques that preserve spinal motion

Vertebral body tethering (VBT) is the "oldest" technique. It uses a tether (cord) with the aim of using the remaining growth of the spine to correct over time the scoliosis. 
Anterior scoliosis correction (ASC) was introduced by Drs Antonacci and Betz to extend the indication of scoliosis correction with cords to patients who have more severe curves or have completed (or almost) their spinal growth