Monday, August 31, 2009

Arthroscopy of the Knee

By Dr. Richard Edelson

Arthroscopy: Latin: arthro - joint, scopy - view. To use arthroscopy is literally, to view the interior of a joint. Using this technique, an orthopedic surgeon can get a clear view of the interior of a damaged or diseased joint and determine what needs to be done and how to do it. This tool greatly simplifies and improves the options for treatment of damaged and diseased knees.

Modern arthroscopes and high resolution cameras make arthroscopy a very effective procedure for accurate diagnosis and correct treatment of knee disorders.

The Structure of the Knee

The knee is made up of three bones: The patella, the tibia, and the femur. The juncture of these bones is cushioned by articular cartilage, which allows them to move easily.

Synovial membrane is a thin, smooth membrane that coats the interior surfaces of the knee. In a healthy knee, the synovial membrane produces a lubricant that allows the knee to function comfortably and smoothly.

The knee is a large joint - the largest in the body, in fact. It is in almost constant use in every day activities. The lower end of the thigh bone - the femur - rotates on the upper end of the shin bone - the tibia. The kneecap - patella - slides along a groove on the end of the femur. The knee gets stability from large ligaments that connect the tibia and the femur, and strength from the large muscle of the thigh.

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Problems With the Knees

Properly functioning knees operate smoothly; however, most knees wear out eventually. The knee is in almost constant use in most of the activities of daily living. Over time sports, injuries, weakening tissues, work, aging and arthritis begin to wear the knee down. When this happens, the result is loss of function along with a fair measure of pain.

With arthroscopy, a number of conditions can be diagnosed and treated:

Chondromalacia, which is the softening of articular cartilage and/or damage to joint surfaces.

Crystalline arthropathy, is characterized by gouty arthritis, rheumatoid arthritis and/or inflamed synovial membranes.

Patellar instability and misalignment.

Arthroscopy can locate these problems.

Damaged meniscal cartilage.

Loose and fragmented cartilage and bone.

Posterior and anterior damaged cruciate ligaments can be diagnosed.

Arthroscopy is extremely useful to the orthopedic surgeon in locating and assessing all of these knee problems. The use of the modern technology helps todays orthopedic surgeon deliver efficient and effective treatment. - 16887

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