Canadian Association of Radiologists Journal
Volume 61, Issue 2 , Pages 80-89, April 2010

Magnetic Resonance Imaging of Cruciate Ligament Injuries of the Knee

  • C.K. Kam, MBChB, MMedSci, FRCR

      Affiliations

    • Department of Diagnostic Radiology, Alice Ho Miu Ling Nethersole Hospital, Tai Po, N.T., Hong Kong SAR, China
  • ,
  • Daniel W.Y. Chee, MBChB, MMed, FRCR

      Affiliations

    • Department of Diagnostic Radiology, Alexandra Hospital, Singapore, Republic of Singapore
  • ,
  • Wilfred C.G. Peh, MD, FRCP, FRCR

      Affiliations

    • Department of Diagnostic Radiology, Alexandra Hospital, Singapore, Republic of Singapore
    • Corresponding Author InformationAddress for correspondence: Wilfred C. G. Peh, MD, FRCP, FRCR, Department of Diagnostic Radiology, Alexandra Hospital, 378 Alexandra Road, Singapore 159964, Republic of Singapore.

published online 29 January 2010.

Abstract 

The anterior cruciate ligament (ACL) and posterior cruciate ligament (PCL) are important stabilizers of the knee. These ligaments are commonly injured in sports and motor vehicle accidents. An accurate diagnosis of cruciate ligament injuries is vital in patient care. Magnetic resonance imaging (MRI) can diagnose cruciate ligament injuries with high accuracy. The imaging diagnosis should be based on primary signs, although the secondary signs are sometimes useful, particularly in chronic cases. The detection of associated injuries of other structures of the knee, including menisci, collateral ligaments, cartilage, and bone, are also important. Accurate interpretation of the MRI examination requires a meticulous MRI technique, knowledge of the imaging anatomy, and understanding of the lesion appearance. This pictorial essay reviews the MRI appearance of normal and injured cruciate ligaments. Mechanisms of injury, primary and secondary MRI signs, and associated abnormalities are discussed.

Résumé 

Les ligaments croisés antérieur et postérieur sont des stabilisateurs essentiels pour le genou. Ces ligaments subissent souvent des lésions lors d'une activité sportive ou d'un accident de la route. Un diagnostic précis des lésions des ligaments croisés est essentiel pour la bonne prise en charge des patients. L'imagerie par résonance magnétique (IRM) permet de diagnostiquer les lésions des ligaments croisés avec une grande précision. Le diagnostic doit être fondé sur les signes primaires, quoique les signes secondaires soient parfois utiles, particulièrement dans les cas chroniques. Il est également important de déceler les lésions connexes des autres structures du genou, comme les ménisques, les ligaments collatéraux, le cartilage et l'os. L'interprétation de l'examen par IRM exige une technique d'IRM méticuleuse ainsi qu'une bonne connaissance de l'anatomie et de l'apparence des lésions. Cet article illustre l'apparence à l'IRM des ligaments croisés sains et anormaux. Les mécanismes des lésions, les signes primaires et secondaires à l'IRM de même que les anomalies connexes sont abordés.

Key Words: Magnetic resonance imaging, Cruciate ligaments, Knee injuries, Ligament tears

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PII: S0846-5371(09)00224-1

doi:10.1016/j.carj.2009.11.003

Canadian Association of Radiologists Journal
Volume 61, Issue 2 , Pages 80-89, April 2010