1353 Accuracy of Surgical movements in the Le Fort I Osteotomy

Abstract Introduction The Le Fort I osteotomy is a surgical procedure planned by joint orthognathic team aiming to correct skeletal discrepancies of the maxilla, with subsequent soft tissue profile changes patient. We undertook retrospective case series analysis patients receiving surgery at UK teaching hospital over last four years assess accuracy movements, comparing actual maxillary movement movements. Method A 4-year period, 2016-2020, was completed. Pre- and post-surgical lateral cephalograms were traced determine postoperative anterior these compared original plan. Based on literature review, we created locally established standard be within 2mm cephalogram trace for satisfactory outcome. Results 91% undergoing (n = 11) had plan, mean difference between movements 1.13mm. Conclusions Our shows there good demonstrated advancement their Following this, will continue monitor maintain this high optimal patient