Bursitis, Pes Anserine (Pes Anserine Syndrome)
- The pes anserinus (“goosefoot”) is the combined insertion of the sartorius, gracilis, and semitendinosus tendons on the anteromedial tibia.
- There is a bursa that lies under the pes anserinus (between the semitendinosus tendon and the tibial attachment of the medical collateral ligament).
- Pes anserine tendino-bursitis (PATB) is due to irritation of the bursa and/or tendons in this area.
One of the most frequent soft tissue pain syndromes in the knee
Etiology and Pathophysiology
PATB is thought to occur due to:
- Overuse injury
- Excessive valgus and rotary stresses
- Mechanical forces and degenerative changes
- Direct trauma
- More common in middle-aged, overweight females
- Other risk factors include:
- Pes planus; genu valgum
- Long-distance/hill running, cycling, swimming (“breaststroker’s knee”)
- Sports with side-to-side/cutting activity (soccer, basketball, racquet sports)
Commonly Associated Conditions
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