AB152. Two stage anterior-posterior fusion for double major adolescent idiopathic scoliosis (AIS): saving lumbar levels with improved derotation of the lowest instrumented vertebra

Abstract

Background: There is no consensus on the correction of adolescent idiopathic scoliosis (AIS) double major curves. Posterior only fusion may require extensive distal fusion or additional instrumentation, subsequently leading to a variety of complications. Alternatively, an anterior-posterior fusion (APF) is a powerful technique which can save lumbar motion segments while restoring lumbar apical rotation and tilt effectively.