髋臼_____髋臼；前柱；逆行拉力螺钉；内固定；应用解剖学

逆行髋臼前柱拉力螺钉内固定的应用解剖学研究

http://www.100md.com 《中国矫形外科杂志》 2005年第23期

髋臼,,髋臼；前柱；逆行拉力螺钉；内固定；应用解剖学,1材料和方法,2结果,3讨论,参考文献：

     摘要：[目的]为逆行髋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，自髋臼切迹至髋臼上缘每隔50 mm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，在髂骨后外侧穿出。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即为逆行髋臼前柱拉力螺钉入钉点。测量其在髋臼前柱骨皮质内的长度，将耻骨结节命名为A，将髂耻隆起命名为B，测量AB及PA的距离，并观察该斯氏针的方向。[结果]最小截骨面位于髋臼切迹上方150 mm处，该截面平均直径为(49±17)mm，髋臼前柱骨皮质内斯氏针长度为(868±72)mm，P位于耻骨上支前缘闭孔嵴上，P距耻骨结节(A)的距离PA为(23±04)mm，耻骨结节(A)距髂耻隆起(B)的距离AB为(47±03)mm，P约为AB的中点，该斯氏针与弓状线平行。[结论]逆行髋臼前柱拉力螺钉入钉点P位于耻骨上支耻骨结节与髂耻隆起中点处的闭孔嵴上，P距耻骨结节(23±04)mm，该螺钉最大直径为(49±17)mm，最大长度为(868±72)mm，该螺钉与弓状线平行。

    关键词：髋臼；前柱；逆行拉力螺钉；内固定；应用解剖学

    Anatomical study of retrograde lag screw fixation in acetabular anterior column

    WANG Qingxian,ZHANG Yingze,PAN Jinshe,et al

    The Third Affiliated Hospital of Hebei Medical University,Shijiazhuang,Hebei 050051

    Abstract：[Objective]To provide applied anatomical basis for the placement of retrograde lag screw in the acetabular anterior column[Method]Twenty hemipelves were harvested for this studyAll specimens were sectioned at 50 mm intervals perpendicular to the anterior surface of the anterior columnSuccessive crosssections were made from the inferior bony acetabular margin to the superior bony margin of the acetabulumThe center point and the diameter of the smallest crosssection were determined by disc methodA Steinmann pin was put retrogradely through the center point of the smallest crosssectionThen the crosssections below were repositioned anatomically,the Steinmann pin was forced downward with the help of a drillThe length of the Steinmann pin in the anterior column was measuredThe exit in the superior ramus of pubis,the pubic tubercle,and the iliopubic eminence was named P,A and B respectivelyThe distance between PA and AB were measuredThe inclination of the Steinmann pin was observed[Result]The smallest crosssection was 150 mm superior to the inferior bony acetabular marginThe diameter of this section averaged (49±17)mmThe mean length of the Steinmanm pin in the anterior column was (868±72)mmP was just on the obturator crestPA was (23 ±04)mm,AB was (47±03)mmP was about the midpoint of ABThe Steinmann pin was parallel to the arcuate line[Conclusion]The anatomical basis for the placement of retrograde lag screw in the acetabular anterior column is demonstrated,and the lag screw is parallel to the arcuate line ......

百拇医药网 http://www.100md.com/html/DirDu/2006/02/19/87/18/41.htm

您现在查看是摘要页，全文长 10741 字符。