Bursitis – Pes Anserine
Bursae are small sacs that are located throughout the body, including around the shoulder, elbow, hip, knee, and heel. They contain a small amount of fluid, and are positioned between bones and soft tissues, acting as cushions to help reduce friction.
Pes anserine bursitis is an inflammation of the bursa located between the shinbone (tibia) and the tendons of the hamstring muscle at the inside of the knee. It occurs when the bursa becomes irritated and produces too much fluid, which causes it to swell and put pressure on the adjacent parts of the knee.
Pain and tenderness on the inside of your knee, approximately 2 to 3 inches below the joint, are common symptoms of pes anserine bursitis of the knee.
Cause & Symptoms
Bursitis usually develops as the result of overuse or constant friction and stress on the bursa. Pes anserine bursitis is common in athletes, particularly runners. People with osteoarthritis of the knee are also susceptible.
Several factors can contribute to the development of pes anserine bursitis, including:
Incorrect training techniques, such as neglecting to stretch, doing excessive hill running, and sudden increases in mileage
Tight hamstring muscles
An out-turning of the knee or lower leg
Osteoarthritis in the knee
Medial meniscus tear
The symptoms of pes anserine bursitis include:
Pain slowly developing on the inside of your knee and/or in the center of the shinbone, approximately 2 to 3 inches below the knee joint.
Pain increasing with exercise or climbing stairs
Your doctor will examine your knee and talk to you about your symptoms.
Symptoms of pes anserine bursitis may mimic those of a stress fracture, so an x-ray is usually required for diagnosis.
Great Lakes Physical Therapy
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