Arthritis of the knee is most often osteoarthritis, a degenerative disease where cartilage in the joint gradually wears away. In rheumatoid arthritis, which can also affect the knees, the joint becomes inflamed and cartilage may be destroyed.

Osteoarthritis may be caused by excess stress on the joint; such as from repeated injury, deformity, or if a person is overweight. It most often affects middle-aged and older people. Rheumatoid arthritis usually affects people at an earlier age than osteoarthritis.

What Are the Signs of Knee Arthritis
& How is it Diagnosed?
 
A person who has arthritis of the knee may experience pain, swelling, and a decrease in knee motion. A common symptom is morning stiffness that lessens after moving around. Sometimes the knee joint locks or clicks when the knee is bent and straightened, but these signs may also occur in other knee disorders. The doctor may confirm the diagnosis by performing a physical examination and taking x-rays. Blood tests may be helpful for diagnosing rheumatoid arthritis. Analysis of fluid from the knee joint may be helpful in diagnosing some kinds of arthritis.

How is Arthritis of the Knee Treated?
 
Osteoarthritis of the knee is often treated with pain-reducing medicines, such as aspirin or acetaminophen (Tylenol), nonsteroidal anti-inflammatory drugs (NSAIDS), like Motrin, Nuprin or Advil, and exercises to restore joint movement and strengthen the knee. Losing excess weight can also help people with osteoarthritis. Rheumatoid arthritis of the knee may require a treatment plan that includes physical therapy and use of more powerful medications. A seriously damaged joint may need to be surgically replaced with an artificial one.

For more information about joint pain, attend one of our free Joint Seminars.

 

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