Baruffaldi F, Cianci R, Fabbri F, Mulazzani M, Fanton F, Toni A, Affatato S, Giunti A
Laboratorio di Tecnologia dei Materiali, Istituti Ortopedici Rizzoli, Bologna.
Chir Organi Mov. 1994 Jul-Sep;79(3):289-301.
Methods for measuring metric size on radiograms constitute an instrument of proven utility. For example, when preoperatively evaluating hip arthroplasty the diameter of the medullary canal and the cervicodiaphyseal angle, must be measured in order to determine the center of rotation of the femoral head, and to establish the flare index of the diaphyseal canal. These results may be obtained by using a computer-controlled graphic table to place the coordinates for the areas of greater anatomical and physiological importance on the radiologic image. Thus, a calculation of distances, anatomical axes and angles is obtained immediately, accurately defining the morphometry of the joint. In this study, the anteroposterior preoperative radiographic views of 87 femurs in 84 patients were evaluated by this method. The values provided by the morphometric analysis were then related to sex, age and weight. The diaphyseal canal was classified by typology for the preoperative planning of hip arthroplasty.
在X线片上测量尺寸的方法是一种经证实有效的手段。例如，在术前评估髋关节置换术时，必须测量髓腔直径和头颈干角，以确定股骨头的旋转中心，并确定骨干髓腔的扩张指数。这些结果可以通过使用计算机控制的图形表来获取，即将具有更大解剖学和生理学重要性的区域的坐标置于放射影像上。这样，就能立即获得距离、解剖轴和角度的计算结果，从而准确界定关节的形态测量学。在本研究中，采用该方法对84例患者的87个股骨的术前前后位X线片进行了评估。然后将形态测量分析得出的值与性别、年龄和体重相关联。为髋关节置换术的术前规划，根据类型对骨干髓腔进行了分类。
