Osteoarthritis (OA) of the finger joints (" knobbly OA ") is the most common joint disease in adults.Although we still have a lot to learn about the causes of hand osteoarthritis, there is a significant family predisposition and it is more common in women over the age of 45. This type of osteoarthritis may occur after one or more injuries, or as a result of certain rare diseases that change the characteristics of the cartilage..
