• Your Knee Pain
  • Osteoarthritis of the Knee
  • About Treatment
  • Before Doctor Visit
  • Simple Exercises
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  • Knee pain check
  • Simple Exercises
  • Knee Trouble FAQ
  • Company Information
  • Hyaluronic Acid expedition
  • From Editorial Supervisor

Before Doctor Visit

Knee pain and rigidity associated with osteoarthritis of the knee do not heal spontaneously with time. Early consultation with a physician to receive treatment is desirable.

What tests are needed?

At medical facilities, you will be interviewed about your symptoms, receive a visual inspection and palpation of the painful site, and undergo X-ray and synovial fluid testing.

- Interview

When you explain your pain to the physician, essential points are: "Which part hurts?," "When did the pain begin?" and "Under what circumstances do you feel pain?
Information about your history of "knee injury," "knee pain," "lower back pain and leg numbness" and so on is also important in the diagnosis of this disease and selection of the best therapeutic strategy. It is advisable for you to have this information, prepared in advance, when visiting a medical facility.

- Visual inspection and palpation

You lie on your back and the physician will check whether or not you can stretch the knee straight. If you cannot stretch the knee, the physician will check the cause, for example, intense pain or rigidity (contracture) of the knee, and check for sounds during knee flexion/extension.
Then, the knee is checked for swelling, heat and fluid pooling when bent and stretched. When you visit a medical facility for visual inspection and palpation, it is advisable to wear clothing allowing easy exposure of the knee (e.g., short trousers, trousers made of soft materials, skirt, etc.).

Points of focus in visual inspection and palpation
Extent of knee flexion/extension
(checking for presence/absence of knee rigidity (contracture))
Swelling and fluid pooling in the knee
Painful site of the knee
Loosening of the knee during anteroposterior and horizontal movements

- X-ray

An X-ray of the knee is taken.
The knee is checked for joint deformation (space between bones) and other bone abnormalities.

- Synovial fluid test

If the knee is swollen, the knee is punctured with an injector to collect synovial fluid for quantification and analysis of its composition.

- Blood tests

Blood is sometimes collected for tests that can distinguish osteoarthritis of the knee from another type of arthritis (e.g. rheumatoid arthritis).