BIOMECHANICS OF ANTERIOR CRUCIATE REPAIR

拟议研究的目标是更好地理解 影响慢性前外侧畸形手术修复的因素 膝关节功能不全，修复需要前膝关节 十字架代用品有待确定。实验将在身体上进行 用屈曲力测量韧带拉力的膝关节标本 四个主要膝关节韧带上的换能器和一个六自由度 测角仪系统将用于测量膝关节的三维运动，当 膝盖受到各种各样的外部载荷方向的影响。 正常膝关节、模拟前外侧损伤的膝关节和膝关节 由八个程序之一修复的将以相同的方式进行测试。 理论韧带长度，因此，负重韧带状态，将是 使用已经开发的理论膝盖模型进行预测，并使用 测量3D运动作为输入。修复插入位置对修复效果的影响 将从理论和实验两方面进行研究。常态和 修复的膝关节将根据前十字交叉或 替代力大小、关节松弛和由另一方分担载荷 韧带。

The goal of the proposed research is to better understand the mechanical factors in surgical repair procedures for chronic anterolateral insufficiency of the knee, for which the repair requires an anterior cruciate substitute to be established. Experiments will be run on cadaver knee specimens in which ligament forces will by measured by buckle force transducers on the four major knee ligaments, and a six degree-of-freedom goniometer system will be used to measure 3-dimensional knee motion, when the knee is subjected to a wide variety of external load directions. Normal knees, knees with a simulated anterolateral injury, and knees repaired by one of eight procedures will be tested in an identical manner. Theoretical ligament lengths, and hence, loaded ligament states, will be predicted using already developed theoretical knee models, with the measured 3-D motion as input. The influence of repair insertion location will be studied both theoretically and experimentally. The normal and repaired knees will be compared on the basis of anterior cruciate or substitute force magnitude, joint laxity, and load sharing by the other ligaments.