Iliotibial Band Friction Syndrome (ITB Syndrome, Runners Knee)


This syndrome is an overuse injury which is the result of friction/rubbing of the iliotibial band (ITB) up against the underlying lateral epicondyle of the femur. The ITB attaches from the pelvic bone (ilium) and runs down the outside of the thigh to the top of the shin bone. The friction of this band against the outside of the knee has been shown to occur from poor lower limb biomechanics and repetitive bending of the knee at 30 – 40 degrees. Runners are the highest risk of developing this injury due to the repetitive action of jogging especially when running downhill.

Signs and Symptoms:

  • Gradual dull pain felt on the outside of the knee.
  • Pain often aggravated by activities such as running and subsides with rest.
  • Pain if severe/acute, commonly comes on earlier during activity and takes longer to recover.
  • After activity, swelling may be present over lateral knee.

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