Osteoarthritis versus rheumatoid arthritis

Osteoarthritis is the osteoarthritis versus rheumatoid arthritis common type of arthritis. Osteoarthritis is the most prevalent type of arthritis.

In the United States, about 27 million people live with the disease. Osteoarthritis is most common among adults over 65 years old but people of any age can develop the disease. Prevalence rises significantly after age 50 in men and after age 40 in women. Knee osteoarthritis is the most common type of osteoarthritis. More than 10 million Americans have knee osteoarthritis. It is also the most common cause of disability in the United States. Hip osteoarthritis is a common type of osteoarthritis.

Since the hip is a weight bearing joint, osteoarthritis can cause significant problems. About 1 in 4 Americans can expect to develop osteoarthritis of the hip during their lifetime. Osteoarthritis can affect any joint in the body, including the hand. Osteoarthritis of the hand most commonly develops at three sites on the hand — at the base of the thumb, at the joint closest to the fingertip, and the middle joint of the finger. Mechanical wear-and-tear or injury can cause osteoarthritis to develop.