Emergency Radiology

, Volume 23, Issue 1, pp 93–96 | Cite as

Iliotibial band avulsion fracture: a case report with differential diagnosis

  • Kristin Fay
  • Rajeev Mannem
  • Keith Baynes
  • Dhruv Sarin
  • Melissa DuBois
Case Report


Avulsion injuries of the knee are common sequelae of significant trauma given the number of ligamentous and tendinous insertions around the joint. Commonly discussed avulsion fractures of the lateral knee include the Segond fracture of the lateral tibial plateau and the arcuate complex avulsion fracture of the fibular styloid process. A less common avulsion fracture is the iliotibial (IT) band avulsion fracture involving the anterolateral corner of the tibia (Gerdy’s tubercle). It is crucial to identify IT band avulsion fractures because of the frequent associated internal derangements of the knee. This case report describes the imaging of an acute IT band avulsion fracture and compares these findings with other lateral knee avulsion fractures.


Iliotibial band injury Knee avulsion fracture Anterolateral corner injury Posterolateral corner injury 


Conflict of interest

The authors declare that they have no conflict of interest.


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Copyright information

© American Society of Emergency Radiology 2015

Authors and Affiliations

  • Kristin Fay
    • 1
  • Rajeev Mannem
    • 1
  • Keith Baynes
    • 1
  • Dhruv Sarin
    • 1
  • Melissa DuBois
    • 1
  1. 1.Medical College of WisconsinMilwaukeeUSA

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