Schlepckow P, Bentlage W
Orthopädische Abteilung der Universitätskliniken Freiburg.
Aktuelle Traumatol. 1990 Feb;20(1):29-33.
Combined instabilities of the knee are usually expressed in compartmental terms. Several clinical evaluation forms result from these classification systems. We performed an experimental study on forty fresh cadaver knees to relate abnormal femorotibial motion with the corresponding structural damage. Translational forces were introduced to the testing apparatus while the tibia was allowed to rotate. In anteromedial lesions (ACL, MCL, POL) the "envelope of motion" was not pronounced in the anteromedial direction. There was only little difference in the amount of the anterior drawer with the foot in external rotation or left free to rotate. Posterolateral lesions (PCL, LCL, Popliteus tendon) were related to posterolateral laxity in 90 degrees of flexion. At 20 degrees of flexion laxity was found to be the greatest.
膝关节的复合不稳定通常按关节间室来表述。这些分类系统产生了几种临床评估形式。我们对40个新鲜尸体膝关节进行了一项实验研究，以将异常的股胫运动与相应的结构损伤联系起来。在允许胫骨旋转的同时，向测试装置施加平移力。在前内侧损伤（前交叉韧带、内侧副韧带、后斜韧带）中，“运动包络”在前内侧方向不明显。足外旋或自由旋转时前抽屉试验的量仅有微小差异。后外侧损伤（后交叉韧带、外侧副韧带、腘肌腱）与90度屈曲时的后外侧松弛有关。在20度屈曲时松弛度最大。
