摘要
目的:应用多层CT影像测量上颌与LeFortI型截骨手术相关骨性解剖标志,为避免损伤腭降动脉提供指导。方法:选择60例正常成人上颌多层CT扫描图像,应用efilm1.94图像处理软件测量。结果:颧牙槽嵴至翼腭管的距离平均为26mm;翼突的宽度平均为13mm;犁状孔边缘至翼腭管的距离平均为37mm;前后鼻棘的距离为47mm;犁状孔边缘至翼腭管连线与矢状面的角度为7°8’。结论:参照测量获得的解剖数据在术中能降低腭降动脉损伤的发生率。
Objeetive： The most common site of heamorrhage in maxillary osteotomies is the posterior maxilla. Better understanding of the anatomy in this region may minimize possible vascular complications. The aim of the study is to investigate the anatomy of posterior maxilla and establish salty guidelines for the Le Fort I osteotomy. Method：Sixty adulty human were selected for multi-multi-detector row helical CT measurement and efilm 1.94 softweare analysis. Result： Results showed that the average distance from the piriform rim to the desending palatine canal was 37mm. Width of the pterygoid process was 13 mm. The average length from the zygo-alveolar ridge to the pterygomaxillary junction was 26 mm, the average length from anterior nasal spine to the posterior nasal spine was 47 mm, and the angle between the piriform rim to the descending palatine canal and vertical section was 7°8′. Conclusion： The study is to provide further understanding of the posterior maxillary anatomy in relation to the bone oat design of Le fort I osteotomy, and to create clinical safety guidelines in order to avoid damaging the desending palatine vessels.
出处
《临床口腔医学杂志》
2005年第8期485-486,共2页
Journal of Clinical Stomatology
基金
辽宁省博士启动基金资助(001036)
关键词
上颌解剖
LE
FORT
I型截骨
多层CT
Le Fort I osteotomy
desending palatine canal
maxilla anatomy
multi-CT
