Understanding Knee Pain

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Understanding Knee Pain

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Ask your physician if joint replacement surgery with ExactechGPS is right for you.

How Does Your Knee Work?

The knee is the largest joint in the body and is made up of the lower end of the thigh bone (femur), which rotates on the upper end of the shin bone (tibia), and the knee cap (patella), which slides in a groove on the end of the femur.

The joint surfaces where these three bones touch are covered with articular cartilage, a smooth substance that cushions the bones and enables them to move easily.

All remaining surfaces of the knee are covered by a thin, smooth tissue liner that releases a special fluid to lubricate the knee. This eliminates friction almost completely in a healthy knee.

Normally, all of these components work in harmony. But disease or injury can disrupt this harmony, resulting in pain, muscle weakness and increased friction.

Osteoarthritis, the most common form of arthritis, is a condition that causes wear and tear to your joint cartilage. It develops after years of constant motion and pressure in the joints. As the cartilage continues to wear away, the joint becomes increasingly painful and difficult to move. If conservative treatment options, such as medication, physical therapy or lifestyle changes like losing weight, fail to provide relief, your surgeon may recommend total knee replacement.

References
References
  1. Data on file at Exactech
  2. Data on file at Exactech. 051K. Intercondylar Femoral Notch Preparation for Posterior Stabilized Knee Arthroplasty – Volumetric Bone Resection According to Two Methods.
  3. US patent 6730128, Albert H Burstein, “Prosthetic Knee Joint,” issued 2004-05-04
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