In addition to the physical exam, your doctor may also recommend the following tests.

Imaging tests

Xray of the Left Knee showing Osteoarthrtis
Xray of the Left Knee showing Osteoarthrtis
  • X-rays. An X-ray of a joint with Osteoarthritis may show a number of features including:
    • Joint Space Narrowing. As the healthy normal cartilage that lines your joint wears down, the Joint Space narrows.
    • Osteophytes. These bone spurs form around the joint.
    • Sclerosis. This a a reaction of the bone that is evident on a Xray.
  • Magnetic resonance imaging (MRI). A MRI is a special investigation using magnetic fields to give detailed images of soft tissue. It can also be helpful to look at cartilage damage and areas of inflammation and damage.

Lab tests

  • Blood tests. Blood tests may help rule out other causes of joint pain, such as rheumatoid arthritis.
  • Joint Aspirate. Sometimes it is necessary to take a sample from your joint to examine it's cells under a microscope. This can be particularly helpful infection or gout needs to be ruled out as a cause of your knee pain.
9 April, 2010