The Role of Caudal Screw Fixation in Outcomes of Posterior Dynamic Distracting Device for Adolescent Idiopathic Scoliosis.
BACKGROUND Nonfusion techniques, such as the posterior dynamic distracting device (PDDD), for adolescent idiopathic scoliosis (AIS), aim to correct deformity and preserve motion. PDDD relies on 2 pedicle screws cranially but only a single caudal screw, a design that may predispose to implant complications. This study e...