Structure-Function of Knee Articular Cartilage

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SummaryThe material properties of articular cartilage are presented, with particular emphasis on understanding the role of collagen, proteoglycan, and water in providing these mechanical properties. Descriptions of cartilage de-formational behavior and data on its permeability, compressive, tensile, shear, and swelling properties are summarized, as well as a discussion to show why these material characteristics are important for the normal function of the knee. In addition, we provide a descriptive explanation of the biphasic theory required to understanding the mechanical behavior of any hydrated soft tissue.

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