Osteoarthritis. Osteoarthritis is the most common form of arthritis in the knee. It is a degenerative, wear-and-tear type of arthritis that occurs in both old and young. In osteoarthritis, the cartilage in the knee joint gradually wears away. As the cartilage wears away, it becomes frayed and rough, and the protective space between the bones decreases. This can result in bone rubbing on bone, and produce painful bone spurs. Osteoarthritis usually develops slowly and the pain it causes worsens over time. What are the symptoms, what are the remidies, surgery important, is it life threatening, Know it all in this video on Oneindia English which is a part of a special series on World Health Day.

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