U-shaped osteotomy around the descending palatine artery to prevent posterior osseous interference for superior/posterior repositioning of the maxilla in Le Fort I osteotomy. (October 2015) - Iwai, T.; Omura, S.; Honda, K.; Shibutani, N.; Fujita, K.; Yamashita, Y.; Takasu, H.; Murata, S.; Tohnai, I.