• Jennifer J Beck, Karren Takamura, Jeanne M Beck, Grace Chang, and Richard E Bowen.
• Orthopaedic Institute for Children/UCLA, 403 W Adams Blvd, Los Angeles, CA, 90007, USA. jjbeck@mednet.ucla.edu.
• Arch Orthop Trauma Surg. 2020 Jan 1; 140 (1): 19-23.

BackgroundThe iliotibial band (ITB) is used in anterior cruciate ligament (ACL) reconstruction in skeletally immature patients as well as several other orthopedic reconstructions. The purpose of this study is to determine the size of the ITB as an autograft option in ACL reconstruction surgery or other orthopedic soft tissue reconstructions.MethodsFive adult cadavers resulting in nine ITB were used. Thickness and width of the ITB were determined. Using ITB width of 15-60 mm, single and doubled graft sizes were determined using standard surgical graft size technique. Geometric calculations based on average graft thickness were used to mathematically confirm the graft size of the ITB.ResultsThe ITB is less than 1 mm in thickness in males and females. Cadaveric measurements were less than 1 mm larger than mathematical measurements, in majority of measurements. ITB autograft can be harvested to a maximum 9 mm single-stranded graft or > 12 mm doubled graft. A minimum of 50 mm of ITB width is required to make a 8 mm graft.ConclusionsITB is a versatile graft that can be used for a graft size up to 9 mm single strand and over 12 mm double strand. A minimum of 50 mm width of ITB is required to obtain a 8 mm-diameter autograft. To ensure appropriate graft size, surgeons should consider harvesting the maximum amount of ITB when performing ACL reconstructions in skeletally immature patients.Clinical RelevanceSurgeons have a quick reference for the width of ITB they should harvest based on the size of graft they require for a successful surgery.

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