What is fibrocartilage?

Many other treatment options try to repair the knee by forming a type of repair tissue called fibrocartilage. Fibrocartilage may hold up in smaller lesions that are protected from heavy weight loading. However, in larger lesions, fibrocartilage is not durable enough to withstand the forces within the knee and breaks down over time. Fibrocartilage usually lasts about 3-5 years after which patients with active life styles may be subject to further surgery or a possible increase incidence of arthritis.