前十字靭帯付着部の組織構造と力学特性の関係

抄録

The anterior cruciate ligament is prone to tearing due to abrupt valgus and rotation during intense sports, and natural healing is difficult, so reconstruction and replacement surgery are required. The ligament and bone tissue are not independent tissues, but cortical bone, calcified fibrocartilage, non-calcified fibrocartilage, and ligament from bone tissue to ligament tissue. Divided into hierarchies, they are collectively referred to as enthesis. In this study, 23-month-old bovine femur specimens were prepared, and Raman spectroscopic measurements were performed on each layer. First, the composition of substances contained in dry and wet specimens was measured in an unloaded state, and the spectra were compared using the strength ratio of the contained substances and FWHM as indicators. Contrary to the expectation that B and L showed the prominent properties of hard and soft tissues, significant peaks were observed for CFC and FC, which are intermediate substances. Since the cause is unknown at present, the results of this study will be considered in detail by increasing the sample size and measuring under tensile load.