Abstract
Accuracy and postoperative stability were evaluated in a combination of Le Fort I and horseshoe osteotomy for superior repositioning of the maxilla.
Superior repositioning was performed in a total of 13 cases. Le Fort I osteotomy was performed in 6 cases (Le Fort I group) where the planned superior movement was less than 3.5mm. Combination of Le Fort I and horseshoe osteotomy was performed in 7 cases (combination group) where the planned superior movement was more than 4mm. In the Le Fort I and combination groups, the discrepancy between the planned and measured superior repositioning of the maxilla was 0.26 and 0.33mm, respectively. At one year after surgery, combination osteotomy had excellent stability. When superior repositioning of the maxilla is indicated, horseshoe osteotomy combined with Le Fort I is a useful method for accuracy and postoperative stability.
