Lyon R M, Woo S L, Hollis J M, Marcin J P, Lee E B
Orthopaedic Bioengineering Laboratory, University of California, San Diego.
J Biomech Eng. 1989 Nov;111(4):350-4. doi: 10.1115/1.3168390.
Previous studies of biomechanical properties of femur-anterior cruciate ligament-tibia complex (FATC) utilized a wide variety of testing methodologies, particularly with respect to ligament orientation relative to loading direction. A new device was designed and built to test the anterior-posterior displacement of the intact porcine knee at 30 and 90 deg of flexion, as well as the tensile properties of the FATC at any loading direction and flexion angle. Tensile tests were performed with the knees at 30 and 90 deg of flexion with the loading direction along either the axis of the tibia (tibial axis) or the axis of the anterior cruciate ligament (ligament axis). The results showed that the stiffness, ultimate load and energy absorbed were all significantly increased when the FATC was tested along the ligament axis. This study demonstrates the importance of alignment in the evaluation of the biomechanical characteristics of the femur-ACL-tibia complex.
以往对股骨-前交叉韧带-胫骨复合体（FATC）生物力学特性的研究采用了多种测试方法，特别是在韧带相对于加载方向的取向方面。设计并制造了一种新装置，用于测试完整猪膝关节在30度和90度屈曲时的前后位移，以及FATC在任何加载方向和屈曲角度下的拉伸特性。在膝关节处于30度和90度屈曲时，沿胫骨轴线（胫骨轴）或前交叉韧带轴线（韧带轴）的加载方向进行拉伸试验。结果表明，当沿韧带轴测试FATC时，其刚度、极限载荷和吸收的能量均显著增加。本研究证明了在评估股骨-前交叉韧带-胫骨复合体生物力学特性时，对齐的重要性。
