·50·创伤与急危重病医学2023年1月第11卷第1期TraumaandCriticalCareMedicineJan.2023Vol.11,No.1·论著·上颌LeFortⅠ型截骨术翼腭管相关解剖结构研究李延超1,华泽权1,朱浩21.南方医科大学深圳口腔医院(坪山)口腔颌面外科,深圳518118;2.北部战区总医院口腔颌面外科,辽宁沈阳110016[摘要]目的使用锥形束CT(CBCT)研究翼腭管的解剖及其与周围结构的关系,为临床LeFortⅠ型截骨术提供指导。方法从CBCT数据库中随机选取30例正常成年人颌面部CBCT数据,比较左右侧各测量标志点数值之间的差异。结果上颌窦内侧壁从犁状孔边缘至翼腭管的平均距离是35.25mm。颧牙槽嵴至翼腭管25.41mm,翼腭管至中线16.68mm,犁状孔边缘至中线的距离是13.87mm,骨性鼻中隔长度是46.27mm。犁状孔边缘至翼腭管连线与矢状面的夹角为6°14′。比较左右侧各测量标志点数值之间的差异,差异无统计学意义(P>0.05)。结论使用CBCT测量LeFortⅠ型截骨术相关的翼腭管的解剖数据准确、有效,可为避免损伤腭降血管等结构提供临床指导。[关键词]局部解剖学;锥形束CT;上颌骨;翼腭管中图分类号:R78DOI:10.16048/j.issn.2095-5561.2023.01.12文章编号:2095-5561(2023)01-0050-03StudyontherelatedanatomicalstructuresofpterygopalatinecanalaboutlefortⅠosteotomyLIYan-chao,HUAZe-quan,ZHUHao(OralandMaxillofacialSurgery,ShenzhenStomatologyHospitalPingshanofSouthernMedicalUniversity,Shenzhen518118,China)Abstract:ObjectiveConicalbeamCT(CBCT)wasusedtostudytheanatomyofpterygopalatinecanalanditsrelationshipwiththesurroundingstructure,soastoprovideguidanceforclinicalLefortⅠosteotomy.MethodsAtotalof30normaladultmaxillofacialCBCTdatawererandomlyselectedfromCBCTdatabasetocomparethedifferenceofthevaluesofthemeasuredlandmarksontheleftandrightsides.ResultsAtthelevelofLeFortIosteotomy,theaveragedistanceoftheinnerwallofthemaxillarysinusfromtheedgeoftheplow-shapedholetothepterygopalatinecanalwas35.25mm.Thezygomaticalveolarridgetothepterygopalatinecanalis25.41mm,thepterygopalatinecanaltothemidlineis16.68mm,thedistancefromtheedgeoftheplow-shapedforamentothemidlineis13.87mm,andthelengthofthebonynasalseptumis46.27mm.Theanglebetweentheedgeoftheplowholeandthepterygopalatinecanaland...