Histophysiology of Fibrocartilage.

There are 3 types of cartilage found in the human body: hyaline cartilage, elastic cartilage, and fibrocartilage. Fibrocartilage may be found in intervertebral discs, symphysis pubis, tendinous insertions, acetabular labrums, and the temporomandibular joint. Specifically, in the foot and ankle we mainly see fibrocartilage in tendinous insertions and in areas where tendons wrap around boney prominence. Histologically, fibrocartilage is comprised of an extracellular matrix that contains glycosaminoglycans, proteoglycans, and collagens. This composition allows for a hydrophilic environment, which allows tissue to withstand high compressive forces seen in weight bearing.