|Housemaids Knee or Prepatellar Bursitis|
What is Housemaids Knee or Prepatellar Bursitis?
A bursa is a small fluid filled sac designed to help soft tissue (skin, tendons,muscle and ligaments) slide easily over the underlying bone. They arise at various joints throughout the body, such as the shoulder, elbow and knee.
Prepatellar bursitis is the inflammation of the pre-patellar bursa, which lies in front of the patella or kneecap. Under normal conditions its function is to reduce the friction between the patellar tendon and overlying skin when bending the knee.
Prepatellar bursitis is the inflammation of this bursa which can either be an acute (sudden onset) injury or chronic (longer term) injury.
Symptoms of Prepatellar Bursitis
Causes of Prepatellar Bursitis
Acute prepatellar bursitis can be caused by a direct blow or fall on the knee. This ruptures blood vessels which bleed into the bursa causing swelling and triggering an inflammation reaction in the walls of the bursa. Subsequently, the walls may then thicken, causing tenderness that may remain even after the swelling has reduced. Acute bursitis can also be triggered by an infection as a result of a surface injury, such as a skin wound over the kneecap. In this case, bacteria may spread into the fluid within the pre-patellar bursa causing infection.
Chronic bursitis is a longer term problem which may recur over a period of time. Repeated damage to the knee for example from kneeling or work that involves alot of pressure on the kneecap thickens the walls of the bursa causing irritation.
Prevention / Treatment of Prepatellar Bursitis
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