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首页> 外国专利> METHOD FOR DETERMINING AN ACETABULAR COMPONENT IMPLANTATION SITE WHEN PLANNING HIP REPLACEMENT SURGERY

METHOD FOR DETERMINING AN ACETABULAR COMPONENT IMPLANTATION SITE WHEN PLANNING HIP REPLACEMENT SURGERY

机译：规划髋关节置换手术时确定髋臼假体植入位点的方法

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FIELD: medicine.;SUBSTANCE: invention refers to medicine, namely to radiodiagnosis, traumatology and orthopedics, and can be used for determining an acetabular component implantation site when planning hip replacement. On the anterosupplicial radiograph of the hip joint, auxiliary lines are drawn through the anatomical landmarks and their intersection points. Anatomical landmarks are represented by lower medial point of cotyloid cavity, lateral point of terminal line of pelvis and lateral point of roof of cotyloid cavity. Medial limiting line is drawn through a lower medial point of the cotyloid cavity and a lateral point of the terminal line of the pelvis. Lower limiting line is perpendicular to it through the lower-medial point. Ascending diagonal line is made upward and laterally in the form of a bisector from the angle formed by the intersection of these two lines. Across the point of intersection of the ascending diagonal line with the roof of the cotyloid cavity, a lateral limiting line is parallel to the medial limiting line from the lateral point of the roof of the cotyloid cavity. Upper limiting line directed parallel to the lower limiting line is drawn through the point of intersection of the ascending diagonal and lateral limiting lines, thereby forming a geometric figure in the form of a square. Acetabular component of a coxofemoral joint is implanted as a cotyloid cavity area bounded by a square. Cotyloid component inclination is determined parallel to an ascending diagonal line. Center of the square is determined by the corresponding rotation center of the cotyloid component. Lower contour of the "tear" figure can be used behind the lower-medial point of the cotyloid cavity in case of possible identification of the "tear" figure and the upper-lateral point of the pelvic occlusion opening in case of identification of the "tear" figure.;EFFECT: method provides higher accuracy of determining an acetabular component implantation site by determining an optimal region on the x-ray image of the cotyloid cavity, in which it is possible to inscribe a maximum semicircular contour of a definite oriented cotyloid component.;3 cl, 9 dwg, 1 ex
机译：技术领域本发明涉及医学，即放射诊断，创伤学和整形外科，并且可以在计划髋关节置换时用于确定髋臼成分植入部位。在髋关节的前位片上，通过解剖界标及其相交点绘制辅助线。解剖标志由下颌骨的中间部位，骨盆末端线的外侧部位和上颌骨的顶部外侧部位代表。内侧界限线穿过骨状体腔的下内侧点和骨盆末端线的外侧点画出。下极限线通过下中间点垂直于它。从这两条线的交点形成的角度，以等分线的形式向上和横向制作对角线。跨过对角线与子叶腔顶部的交点，横向边界线从子叶腔顶部的外侧点平行于内侧极限线。平行于下限线的上限线通过上升的对角线和侧限线的交点画出，从而形成正方形的几何图形。髋臼关节的髋臼组件被植入为以正方形为边界的胚状体腔区域。子叶成分的倾斜度平行于上升的对角线确定。正方形的中心由子叶成分的相应旋转中心确定。如果可能识别出“撕裂”图形，则可以在“胚状体”腔的下中点后方使用“撕裂”图形的下轮廓，如果识别出““撕裂”图形，则可以使用骨盆闭塞开口的上外侧点。效果：通过确定子叶腔的X射线图像上的最佳区域，该方法可提供较高的确定髋臼组件植入部位的准确性，在该区域中可以刻画确定取向的子叶的最大半圆形轮廓分量。; 3 cl，9 dwg，1 ex

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