Knee Tendon Bursitis: Causes, Symptoms, Diagnosis, Treatment

Knee Tendon Bursitis is a condition affecting the Pes anserinus (goose’s foot) bursa, a small fluid filled sac located between the tibia and tendons of the hamstring muscles, sartorius, gracilis and semitendinosus. The condition occurs as a result of inflammation of the bursa, causing it to produce too much fluid and swell which, in turn puts pressure on the adjacent structures within the knee joint. People who are obese, aged 50 to 80 years or involved in high impact sports activities are more likely to suffer from Knee Tendon Bursitis.


  • Repetitive knee movements
  • Improper sports training, such as lack of warm up exercises, excessive uphill running or sudden increase in running distances
  • Direct blow to the knee
  • Tight hamstring muscles
  • Medical conditions, such as Osteoarthritis, Knee Cartilage Tear or Flat Feet
  • Sudden twisting of the leg with the foot planted on the ground
  • A forceful out turn of the knee or lower leg


Gradually developing pain on the inner side of the knee, a few inches below the joint

  • Swelling
  • Restricted range of motion
  • Pain may increase with exercise, climbing stairs or other physical activity
  • Difficulty bending or straightening the leg
  • Tenderness to touch


The orthopedic doctor may physically examine the knee and assess the range of motion. He may gently press the inner side of the knee to determine the severity of pain. As the symptoms of Knee Tendon Bursitis are similar to those of a stress fracture, an X-ray may be conducted for a proper diagnosis and rule out damage to other parts of the knee joint.


  • Rest: The patient may be advised to take rest and avoid putting stress on the affected knee. Refraining from strenuous physical activities may also be recommended.
  • Ice Pack: Applying ice packs to the affected area after every few hours or as suggested by the orthopedic doctor may help to relieve pain.
  • Medication: The doctor may prescribe non-steroidal anti-inflammatory medications to reduce inflammation.
  • Physical Therapy: It may help to stretch and improve the flexibility of the hamstring muscles. The physical therapist may also suggest exercises to restore normal movement in the knee and leg.
  • Surgery: The orthopedic doctor may perform aspiration (draining the fluid out of the bursa) or remove the bursa if there is severe infection.

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