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Semin Musculoskelet Radiol 2006; 10(3): 220-228
DOI: 10.1055/s-2006-957175
Copyright © 2006 by Thieme Medical Publishers, Inc., 333 Seventh Avenue, New York, NY 10001 USA.

MRI of the Posterolateral Corner of the Knee: Normal Appearance and Patterns of Injury

William J. Malone1 , George Koulouris2
  • 1Division of Musculoskeletal Radiology, Department of Radiology, Geisinger Medical Center, Danville, Pennsylvania
  • 2Department of Radiology, Thomas Jefferson University Hospital, Philadelphia, Pennsylvania
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Publication History

Publication Date:
27 December 2006 (online)

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ABSTRACT

The posterolateral corner (PLC) of the knee is a complex area, previously poorly understood by radiologists. Numerous structures make up the PLC, whose evaluation is difficult because of the variable presence of the individual components, their intimate and commonly overlapping insertions, and their oblique course on traditional imaging planes. The clinical relevance of PLC injuries, especially the infrequently repaired “minor” components, adds to the confusion. Our purpose is to review the anatomy, imaging, clinical evaluation, and treatment options for PLC injuries.

KEYWORDS

Posterolateral corner - arcuate complex - popliteus tendon injury - popliteofibular ligament injury - lateral (fibular) collateral ligament injury

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William J MaloneD.O. 

Chief, Musculoskeletal Radiology, Department of Radiology, Geisinger Medical Center

100 North Academy Avenue, Danville, PA 17822