摘要
目的探讨腰椎骨盆融合术中髂骨螺钉入路。方法随机抽调进行过CT骨盆扫描的男女成年患者图像各20份,将其64排CT薄层图像重建转换为三维立体图像。选取可以进钉的螺钉入点O,从O点分别向髂前上棘、髂前下棘、髋臼上缘最高点处切割骨盆,得出3个切割平面(OX、OY、OZ),测量每个平面的钉道长度及宽度。结果 3个切割平面(OX、OY、OZ)在最窄横径超过7 mm的条件下,均可以置入髂骨钉。钉长范围为:男性OX平面为(101.0±22)mm,OY平面为(122.3±6.5)mm,OZ平面为(110.8±9.0)mm;女性OX平面为(92.9±23.9)mm,OY平面为(113.0±11.7)mm,OZ平面为(110.6±11.2)mm。统计结果同时表明,螺钉钉道的尾向偏角及外向偏角在统计学上不存在性别差异(P>0.05)。结论通过骨盆的3个切割平面(OX、OY、OZ)均可以置入髂骨钉;通过进钉点"O"指向髂前下棘走向的骨盆平面(OY)是理论上稳固性较好的腰椎骨盆固定术置入髂骨螺钉的位置。
Objective To explore the approach of iliac screw in lumbar vertebra pelvis arthrodesis. Methods Randomly selected 20 pelvic CT scan images of male and female separately, by reconstruction of 64 row spiral CT thin layer scanning image converted into 3D images. Firstly, you can select the nail screws O as entry point. Respectively from point O to the anterior superior, anterior inferior and upper edge of the acetabulum of the pelvis 3.5 mm cut, three cutting plane（OX, OY, OZ） were obtained, measured the length and width of each screw channel plane. Results The narrowest diameter of three cutting plane（OX, OY, OZ） were more than 7 mm, all can be implanted iliac screw. Nail length range： Male OX plane（101.0±22）mm, OY plane（122.3±6.5）mm, OZ plane（110.8±9.0）mm; women OX plane（92.9±23.9）mm, OY plane（113.0±11.7）mm, OZ plane（110.6±11.2）mm. Statistical results also showed that there were no significance in the deflection angle of tailward and outward declination angle of screw channel between females and males（P〉0.05）. Conclusion Through the pelvis three cutting plane（OX, OY, OZ） are permitted to implant screw. Through anterior inferior iliac spine（OY） is theoretically better iliac screw inserted position in the fixation of lumbar sacral vertebra pelvis.
出处
《中华临床医师杂志（电子版）》
CAS
2015年第7期5-7,共3页
Chinese Journal of Clinicians(Electronic Edition)
关键词
体层摄影术
螺旋计算机
三维重建
髂骨钉
腰椎骨盆固定
Tomography
spiral computed
Three dimensional reconstructions of pelvises
Iliac screw
Fixation of lumbar sacral vertebra pelvis
