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Saturday, June 20, 2009

The Functioning and Anatomy of the Knee

By Dr. Stefan Tarlow

How Do Knees Work?

Two or more bones connected by ligaments make up a joint. The largest joint is the knee. It is composed of three parts:

The patella, which is better-known as the kneecap.

The femur, which is the lower end of the thigh bone.

The tibia, which is the upper end of the shin bone.

Additionally, the quadriceps (long muscles on the front of the thigh) strengthen the knee.

The surface of bones that touch each other inside a joint is covered with articular cartilage. This is a smooth substance that cushions the bones.

Additionally, the knee mechanism is lubricated by fluid that is generated by the synovial membrane. This thin, smooth tissue liner covers the remainder of surfaces within the knee. It prevents the end of the joint bones from rubbing.

How is Knee Pain Caused?

Often, the cartilage just gets worn away. Without cartilage, there is nothing but bone-to-bone. This constant rubbing and friction causes swelling and pain.

This is often caused by a trauma or injury to the knee, which leads to osteoarthritis. The lack of cartilage between the bones means there is nothing there to absorb shock. This is a very stressful situation that causes a lot of pain.

Click here to learn more about total knee replacement procedure.

A Few Ways to Treat Knee Pain

Steroidal and non-steroidal anti-inflammatories can be used to ease knee pain. Braces are helpful, as are cortisone injections and physical therapy. However, if you have tried all of these without success, you may seriously want to consider knee surgery. It will put an end to your having to limit your activities due to knee pain.

Knee replacement surgery was done for the first time in 1968, and it has been a popular solution to knee pain ever since. It is typically successful and results in the relief of pain and the restoration of knee function. More than a quarter of a million Americans undergo knee replacement surgery every year.

Click here to learn more about partial knee replacement procedure. - 17273

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