Aizenbud Dror, Rachmiel Adi
Orthodontic and Craniofacial Center, Rambam Health Care Campus, Bruce Rappaport Faculty of Medicine, Technion - Israel Institute of Technology, Haifa, Israel.
Ann R Australas Coll Dent Surg. 2008 Jun;19:77-87.
Three-dimensional Le Fort I DO can be used to selectively widen, lengthen, and vertically reposition the maxilla, without bone grafts and with a good adaptation of the surrounding soft tissues. Therefore DO is a complementary tool for conventional orthodontics and orthognathic surgical techniques that address maxillary deficiency. It is the technique of choice for patients who require significant maxillary repositioning and have significant soft tissue limitations, such as scarring secondary to previous surgical procedures. The procedure can be performed in children prior to reaching skeletal maturity and also in adult patients. Finally, three-dimensional maxillary reconstruction by distraction of the Le Fort I segment offers an improved aesthetic outcome and less risk of deterioration of speech in comparison with traditional orthognathic techniques.
三维Le Fort I型骨切开术可用于选择性地扩大、延长上颌骨并使其垂直重新定位，无需植骨，且周围软组织适应性良好。因此，骨切开术是传统正畸和正颌外科技术的补充工具，可用于解决上颌骨发育不足问题。对于需要进行显著上颌骨重新定位且存在明显软组织限制（如既往手术导致的瘢痕形成）的患者，该技术是首选。该手术可在儿童骨骼成熟前进行，也可在成年患者中进行。最后，与传统正颌技术相比，通过牵引Le Fort I节段进行三维上颌骨重建可改善美学效果，且语音恶化风险更低。
