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1、逆行體臼前柱拉力螺钉内固定应用解剖学探究作者：王庆贤张英泽潘进社彭阿钦吴希瑞王鹏程李衡张世强李亚洲刘向东赵立力【关键词】骯臼摘要：［目的］为逆行轆臼前柱拉力螺钉内固定提供应用解剖学基础。［方法］取半骨盆标本20个，自髓臼切迹至髓臼上缘每隔50H1H1作系列截骨面，找到最小截骨面，用圆盘法确定其圆心及直径，用斯氏针由该截面的圆心逆行打入,在髒骨后外侧穿出。将该截面下方的系列截面解剖复位，再将斯氏针顺行打入前柱，由耻骨上支前外侧穿出，该穿出点为P,P即为逆行髄臼前柱拉力螺钉入钉点。测量其在髄臼前柱骨皮质内的长度，将耻骨结节命名为A
2、,将悩耻隆起命名为B，测量AB及PA的距离，并观察该斯氏针的方向。［结果］最小截骨面位于骯臼切迹上方150mm处，该截面平均直径为(49土17)mm,髓臼前柱骨皮质内斯氏针长度为(868±72)mm,P位于耻骨上支前缘闭孔端上，P距耻骨结节(A)的距离PA为(23±04)mm,耻骨结节(A)距僭耻隆起(B)的距离AB为(47±03)mm,P约为AB的中点，该斯氏针与弓状线平行。[结论]逆行骯臼前柱拉力螺钉入钉点P位于耻骨上支耻骨结节与骼耻隆起中点处的闭孔靖上，P距耻骨结节(23±04)mm,该螺钉最大直径为(49±17)mm,
3、最大长度为(868土72)mm,该螺钉与弓状线平行。关键词：體臼；前柱；逆行拉力螺钉；内固定；应用解剖学AnatomicalstudyofretrogradelagscrewfixationinacetabularanteriorcolumnAbstract:[Objective]Toprovideappliedanatomicalbasisfortheplacementofretrogradelagscrewintheacetabularanteriorcolumn[Method]Twentyhemipelveswereha
4、rvestedforthisstudyAllspecimensweresectionedat50mmintervalsperpendiculartotheanteriorsurfaceoftheanteriorcolumnSuccessivecrosssectionsweremadefromtheinferiorbonyacetabularmargintothesuperiorbonymarginoftheacetabulumThecenterpointandthediameterofthesmallestcrosssecti
5、onweredeterminedbydiscmethodASteinmannpinwasputretrogradelythroughthecenterpointofthesmallestcrosssectionThenthecrosssectionsbelowwererepositionedanatomically,theSteinmannpinwasforceddownwardwiththehelpofadrillThelengthoftheSteinmannpinintheanteriorcolumnwasmeasured
6、Theexitinthesuperiorramusofpubis,thepubictubercle,andtheiliopubiceminencewasnamedP,AandBrespectivelyThedistancebetweenPAandABweremeasuredTheinclinationoftheSteinmannpinwasobserved[Result]Thesmallestcrosssectionwas150mmsuperiortotheinferiorbonyacetabularmarginThediam
7、eterofthissectionaveraged(49±17)mmThemeanlengthoftheSteinmanmpinintheanteriorcolumnwas(868±72)mmPwasjustontheobturatorcrestPAwas(23土04)mm,ABwas(47±03)mmPwasaboutthemidpointofABTheSteinmannpinwasparalleltothearcuateline[Conclusion]Theanatomicalbasisfortheplacementofr
8、etrogradelagscrewintheacetabularariteriorcolumnisdemonstrated,andthelagscrewisparalleltothearcuatelineKeywords:Acetabulum；Anteriorcolumn；R
