Journal
EMERGENCY RADIOLOGY
Volume 23, Issue 1, Pages 93-96Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10140-015-1347-0
Keywords
Iliotibial band injury; Knee avulsion fracture; Anterolateral corner injury; Posterolateral corner injury
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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.
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