Mostafa Motavalli, Cheyenne Jones, Jim A Berilla, Ming Li, Mark D Schluchter, Joseph M Mansour, Jean F Welter
Purpose: Articular cartilage is known to be mechanically anisotropic. In this paper, the acoustic anisotropy of bovine articular cartilage and the effects of freeze-thaw cycling on acoustic anisotropy were investigated. Methods: We developed apparatus and methods that use a magnetic L-shaped sample holder, which allowed minimal handling of a tissue, reduced the number of measurements compared to previous studies, and produced highly reproducible results. Results: SOS was greater in the direction perpendicular to the articular surface compared to the direction parallel to the articular surface (N=17, P = 0...
June 2020: Journal of Medical and Biological Engineering