Hehne H J, Ficker E, Jantz W, Mahr D, Schöpf H J
Morphol Med. 1981 Oct;1(2):95-106.
A new method for measurements of pressure distributions and contact areas in joints. An innovative method is presented, allowing, for the first time, the exact determination of load-dependent pressure distributions and contact areas of joint surfaces in anatomical specimens. A thin flexible foil is inserted into the joint and adjust itself to curvatures. Upon loading, a monochromatic coloration occurs such that the optical density increases linearly with pressure. Using an electronic picture processor an analog representation of isobaric areas is obtained and evaluated, thereby integrating the areas of equal optical density. This procedure is considered to be superior to densitometric digital signal processing. For illustration, measurements of tibiofemoral-, patellafemoral- and ankle joints are shown, demonstrating the advantages and limitations of the new method.
一种测量关节压力分布和接触面积的新方法。本文提出了一种创新方法，首次能够精确测定解剖标本中关节表面与负荷相关的压力分布和接触面积。将一片薄的柔性箔片插入关节并使其适应关节曲率。加载时，会出现单色着色，使得光密度随压力呈线性增加。使用电子图像处理器可获得并评估等压区域的模拟表示，从而对光密度相等的区域进行积分。该方法被认为优于密度测定数字信号处理。为作说明，展示了对胫股关节、髌股关节和踝关节的测量结果，证明了该新方法的优缺点。
