BIOMECHANICS OF ANTERIOR CRUCIATE REPAIR

前十字韧带修复的生物力学

• 批准号: 2079283
• 负责人: JACK L LEWIS
• 金额: $ 12.77万
• 依托单位: UNIVERSITY OF MINNESOTA
• 依托单位国家: 美国
• 财政年份: 1991
• 资助国家: 美国
• 起止时间: 1991-03-01 至 1995-02-28
• 项目状态: 已结题
• 来源: https://reporter.nih.gov/project-details/2079283
• 关键词: arthroplasty; biomechanics; goats; human tissue; joint disorder; knee; ligaments; limb movement; musculoskeletal imaging /visualization /scanning; orthopedics; physical model; radiography; skeletal stress

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.

这项研究的目的是为了更好地了解机械 慢性前外侧肌萎缩性侧索硬化症外科修复术中的因素 膝关节功能不全，修复需要前 十字架的替代品。 实验将在尸体上进行 膝关节标本，其中韧带力将通过屈曲力测量 四个主要膝关节韧带上的传感器，以及六个自由度 将使用测角器系统测量三维膝关节运动， 膝关节承受各种各样的外部载荷方向。 正常膝关节、模拟前外侧损伤膝关节和膝关节 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，加载韧带状态，将是 预测使用已经开发的理论膝盖模型，与 测量的三维运动作为输入。 修复插入位置的影响 将从理论和实验两方面进行研究。 正常和 将根据前交叉韧带或 用另一个代替力的大小、关节松弛度和载荷分担 韧带.