髂骨钉进钉外展角度的影像解剖学研究  

Radiographic measurements for the spino-iliac angle of adult iliac screws passage

作　　者：陈辉[1] 刘明军[1] 王志强[1] 

机构地区：[1]河南濮阳市人民医院骨二科,濮阳457000

出　　处：《河南外科学杂志》2011年第4期6-8,共3页Henan Journal of Surgery

摘　　要：目的通过对成人螺旋CT三维重建骨盆的影像解剖学测量,了解髂骨钉进钉时在水平面上的外展角度,从而保证髂骨钉置入的准确性与安全性。方法选取200例患者的骨盆螺旋CT电子影像资料(男107例,女93例,排除明显骨盆畸形、外伤等疾病),平均年龄(55.6±18.3)岁。通过骶1水平的CT平面,测量脊柱-髂骨角(Thespino-iliacangle,S-I角),该角度是通过骶骨棘突中心的垂线与此处髂骨内外板中心线间的交角。结果男性组S-I角为(30.1±7.7)°,女性组为(29.9±8.1)°,统计学检验2组间无明显差异,故2组合并后为(30.1±7.8)°。结论对于大多数人群采用外展约30°的进钉角度可以保证髂骨钉置入的准确性与安全性。Objective To estimate the accurate trajectory in the axial plane for iliac screw insertion in 200 patients using radiographic images. Methods Between January 2007 and February 2009, 200 patients （ 107 men and 93 women） who underwent L - spine computed tomography were enrolled in this study. The mean age of the patients was （55.6 ＋ 18.3）years （range, 13 to 92 years）. The spino -iliac angle （SIA） was measured on the axial image at the S1 level, which was defined as the angle between a vertical line through the center of the spinous process and an oblique line that passed through the center of the outer and inner cortices of the ilium. Results The group mean SIA was（30.1 ±7.8）°; （30. 1 ± 7.7）°for men and（29.9 ±8. 1 ）°for women. There was no significant difference according to gender or age （P 〉 0.05）. Conclusion The SIA for the axial trajectory of iliac screws is approximately 30°inmost patients.

关 键 词：髂骨钉 影像测量 腰骶融合 

分 类 号：R683[医药卫生—骨科学]