iliotibial band

noun

Medical Definition of iliotibial band

: a fibrous thickening of the fascia lata that extends from the iliac crest down the lateral part of the thigh to the lateral condyle of the tibia and that provides stability to the knee and assists with flexion and extension of the knee

called also iliotibial tract, IT band

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Cite this Entry

“Iliotibial band.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/iliotibial%20band. Accessed 18 Sep. 2020.

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