Le Fort Ⅲ型截骨中位牵引成骨治疗成人面中份发育不全  

Le Fort Ⅲ Osteotomy and Medium Position Distraction for Correction of Midface Hypoplasia in Adult

作　　者：侯敏[1] 柳春明[2] 张海钟[2] 濮礼臣[1] 卢彬[1] 

机构地区：[1]天津市口腔医院正颌外科,天津300041 [2]中国人民解放军总医院口腔颌面外科,北京100853

出　　处：《口腔颌面外科杂志》2007年第3期244-247,共4页Journal of Oral and Maxillofacial Surgery

摘　　要：目的:评价中位牵引成骨治疗成人面中份发育不全的疗效。方法:使用自行设计制作的颌骨牵引装置,在全麻手术下LeFortⅢ型截骨,后将牵引钩置入鼻底或梨状孔侧缘,从鼻孔引出,外部装置采用面弓或坚固外固定支架,对8例面中部凹陷畸形成年患者行前牵引,治疗前后拍摄定位头颅侧位片测量分析。结果:上颌中位前牵引治疗后,患者咬合关系和软组织侧貌改变明显,A点水平前移在9～14.5mm之间,面部上中下各部的前后关系协调,鼻梁及鼻下部挺拔,眼球突出度改进明显。结论:经梨状孔中位牵引成骨可有效矫治面中部发育不全,该牵引技术牵引力点适中,能够使面中份骨骼平衡前移;避免对牙齿牵引造成的不利改变。长期效果有待于进一步观察。Objective： To evaluate the effects of midface distraction osteogenesis for correction of midface hypoplasia in adults. Methods： Eight cases with class Ⅲ maxillary deficiencies were treated with midface skeleton protraction at medium position. Followed by Le Fort Ⅲ osteotomy, traction hook was hitched to the floor or side of apertura piriformis, and connected with face bow or rigid external distraction device through the nostrils. Mean treatment time lasted for 3 months. Lateral cephalometric films were taken and analyzed before and after treatment. Results： The patient＇s occlusal relationship and soft tissue profile changed significantly. Position of the maxilla was significantly advanced. Point A advanced to 9～14.5 mm. The facial contour and exophthalmic degree improved significantly. Conclusion： The technique can advance the maxilla effectively and quickly, unfavorable effects of traditional teeth protraction, Long-term results should be researched further.

关 键 词：牵引成骨 上颌发育不全 LE FORT Ⅲ型截骨 头影测量 

分 类 号：R782[医药卫生—口腔医学]