P73. Clinical and Radiological Outcomes after Posterior Reduction and Fusion for Chronic Pediatric Atlantoaxial Rotatory Fixation: A Minimum 2 Years Follow-up Study

Abstract

BACKGROUND CONTEXT: Atlantoaxial rotatory fixation (AARF) occurs predominantly in the pediatric population, following infection, minor trauma, and sometimes unknown causes. Most of them are reduced spontaneously or improved by conservative treatment; however, small numbers of the AARF do not respond to conservative treatment. Because chronic dislocation and fixation at C1-2 joint may lead to restriction of neck motion and facial asymmetry, recent studies have advocated early open reduction to restore the normal alignment of C1-2.