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Iliotibial Band Syndrome


- Discussion:
    - an overuse phenomenon which is common in runners (more common w/ downhill running); (see running injuries)
    - pts usually have pain over lateral femoral epicondyle, which is caused by inflammation resulting from friction as iliotibial band slides over  condylar prominence;
    - syndrome may be more common in runners w/ genu varum & hyperpronated feet;
           - this may occur due to need for lower limb to generate a valgus moment at the point of maximum stance phase flexion inorder to balance out opposing forces;
                   - varus limb alignment requires larger valgus moment at time of stance phase, which causes increased friction between IT band and lateral epicondyle;
    - clinical findings:
           - athletes usually complains of pain over the lateral aspect of knee;
           - pain over lateral femoral epicondyle, due to inflammation resulting from friction as iliotibial tract slides over condyle;
           - there is tenderness where iliotibial band slides over lateral prominence or at Gerdy's tubercle;
    - diff dx:
         - includes lateral meniscal tear, discoid lateral meniscus, popliteus tendinitis, and patellofemoral pain syndrome;
    - treatment:
         - non operative rx includes stretching, orthosis, and steroid injections;
         - in chronic cases bursectomy and lateral tendon resection may relieve symptoms

- References:

Functional differentiation within the tensor fasciae latae. A telemetered electromyographic analysis of its locomotor roles.

The iliotibial band friction syndrome

Running Injuries: A biomechanical approach