Amadi Hippolite O, Sanghavi Sanjay M, Kamineni Srinath, Skourat Roman, Hansen Ulrich N, Bull Anthony M J
Departments of Bioengineering, and Mechanical Engineering, Imperial College London, UK.
J Anat. 2008 Jun;212(6):863-7. doi: 10.1111/j.1469-7580.2008.00903.x. Epub 2008 Apr 21.
The aim of this work was quantitatively to establish the relationship between the plane that hosts the humeral head lateral margin (anatomical neck) and that of the capsular insertion. Eight cadaveric shoulders were used. These were dissected, exposing the humeral head margin and the root of the capsular humeral insertion to extract digitally their outlines using a mechanical 3-d digitizer. The datasets of the digitized outlines were applied and the geometric planes they best fitted mathematically calculated. Vector analysis techniques were finally applied to the two planes to quantify the relationship between them. The humeral head margin is circular (+/- 2.2% of radius), having each of its outlining points on the same plane (within +/- 1.5 mm.) The capsular attachment outlining points also insert on a plane (+/- 1.4 mm). The two planes are related to one another by an inclination of 14.5 +/- 3.6 degrees. The relationship described here would allow for in vivo prediction of humeral attachment of capsular structures by using radiological datasets of the anatomical neck. This would be useful in patient-specific modelling to study and understand the glenohumeral ligament kinematics during clinical examinations and to plan surgical reconstructive procedures.
这项工作的目的是定量确定承载肱骨头外侧边缘（解剖颈）的平面与关节囊附着平面之间的关系。使用了八个尸体肩部。对这些肩部进行解剖，暴露肱骨头边缘和关节囊肱骨附着根部，使用机械三维数字化仪以数字方式提取其轮廓。应用数字化轮廓的数据集，并计算它们在数学上最拟合的几何平面。最后将矢量分析技术应用于这两个平面，以量化它们之间的关系。肱骨头边缘呈圆形（半径的±2.2%），其每个轮廓点位于同一平面内（±1.5毫米范围内）。关节囊附着轮廓点也附着在一个平面上（±1.4毫米）。这两个平面相互之间的倾斜度为14.5±3.6度。这里描述的这种关系将允许通过使用解剖颈的放射学数据集对关节囊结构的肱骨附着进行体内预测。这对于特定患者建模以研究和理解临床检查期间的盂肱韧带运动学以及规划手术重建程序将是有用的。
