Do low-density screws influence pelvic incidence in adolescent idiopathic scoliosis correction?

Background: Low-density screw constructs yield significant radiographic and clinical improvements with reduced risk of neurological complications. This study aimed to investigate the relationship between coronal Cobb angle and pelvic incidence (PI) in the correction of adolescent idiopathic scoliosis (AIS) using a low-density construct, as well as the association between PI and functional outcomes.

Patients And Methods: This prospective cohort study involved 60 posteriorly instrumented AIS patients, aged 10-16 years, with Cobb angles ranging from 45° to 90° of various Lenke types.