What is Goosefoot (Pes Anserine) Bursitis of the Knee?
Bursae are small fluid-filled sacs that serve to provide cushioning and reduce friction in joints. The pes anserine bursa is found in the knee joint, between the tibia and the pes anserinus tendons that connect the tibia and hamstring muscles. This group of tendons were named after their appearance — Pes anserinus is Latin for "goosefoot." Goosefoot bursitis of the knee is a potentially painful condition in which the pes anserine bursa becomes inflamed, which can affect the knee's range of motion.
What causes Goosefoot (Pes Anserine) Bursitis of the Knee?
This condition is commonly caused by overuse, especially in sports where the bursa is subjected to repetitive stress or impact without adequate healing time. Other causes of goosefoot bursitis may include trauma, as well as degenerative conditions like osteoarthritis.
Symptoms and Diagnosis
Goosefoot bursitis symptoms can vary depending on the severity of the condition. One of the most common symptoms is gradually developing pain two to three inches below the knee joint, on the inner side of the knee. The pain may increase with physical activity. Swelling and mobility loss may also occur in the affected area.
How is Goosefoot (Pes Anserine) Bursitis of the Knee treated?
Conservative treatment options for treating Goosefoot may include anti-inflammatory medication, rest, and corticosteroid injections. Aspiration may also be performed to drain fluid from the bursa. If the condition is very severe or conservative methods are not effective, surgery may be required.