Different Conditions and Causes for Knee Pain

A lot of different conditions and diseases are associated with knee pain. Knee pain lasting for a short amount of time may simply be caused by overexertion. The following list describes the ten most common reasons for knee pain.

Arthritis: Arthritis is probably the most common association with knee pain. There are three types of arthritis: osteoarthritis, rheumatoid, and septic. Osteoarthritis is joint degeneration. Rheumatoid is joint inflammation. Septic arthritis is caused by joint infection.

Bursitis: The bursae of the knee is a protective structure within the joint that protects from general friction. Bursitis is caused by inflammation. The inflammation of the bursae can be caused by larger existing issues such as rheumatoid arthritis or gout. Interestingly, bursitis was once known as “the house-maid’s knee,” because of the constant kneeling one did as a house maid to clean floors. Bursitis can simply be caused by an over-use of the joint in a particular movement—such as continued kneeling.

Cysts: Cysts are simply fluid-filled sacs. A cyst around the knee joint causes not only general knee pain, but can also be the central cause of swelling of the knee.
Fracture: Any kind of break or crack in the bones that make up the knee joint will cause knee pain. That means a crack or break in the patella, the tibia, or even anywhere in the thigh bone can cause pain within the knee.

Gout: Gout places an inordinate amount of uric acid within the blood. The uric acid is produced as a result of an internal bodily chemical process gone hay-wire. Besides joint pain in general, uric acid can leave deposits of a crystal like substance in and near joint areas. At it’s most benign, gout can cause rheumatoid arthritis. At it’s worse, gout can cause total joint destruction.

Ligament injury: Ligaments support the knee. Any injury or overuse to the knee ligaments can cause serious pain. This type of injury is most common with sports.

Loose bodies: Anything floating around the knee joint can cause pain. These loose bodies can be anything from ligament and/or cartilage fragments to crystal deposits caused by uric acid in the blood stream.

Meniscus related problems: At the top end of the tibia where it meats the thigh bone sits shock absorbers, much like what is found in a vehicle’s suspension system. Only this shock system is made up of cartilage and is called menisci. A meniscus related problem is another one of those sports associated injuries, though damage can be done to the menisci other than participating in sports. Damage happens normally as a tear. A meniscus tear can also happen due to old age too.

Osteonecrosis: Osteonecrosis is bone degeneration. Osteonecrosis can cause knee pain when the degeneration of the bone happens along the thigh bone or the tibia. The problem can not only lead to knee pain, degeneration of the particular bone in question, but can cause deformity. Osteonecrosis occurs when there is a decreased blood supply to the bone. The decreased supply can sometimes occur due to a fracture or break.



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