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Semin Musculoskelet Radiol 2024; 28(03): 305-317
DOI: 10.1055/s-0044-1781431
DOI: 10.1055/s-0044-1781431
Review Article
Demystifying the “Dark Side of the Knee”: An Update on Imaging of the Posterolateral Corner
1
Radiology Department, Centro Hospitalar Universitário do Algarve, Portimão, Portugal
2
Lagoa Centro - Imagens Médicas, Lagoa, Portugal
,
Diogo Correia Baptista
3
Radiology Department, Instituto Português de Oncologia Francisco Gentil, Lisbon, Portugal
,
4
Musculoskeletal Imaging Unit, Radiology Department, Hospital da Luz, Grupo Luz Saúde, Lisbon, Portugal
5
Radiology Department, Hospital Particular da Madeira, Grupo HPA, Funchal, Portugal
› Author Affiliations
Abstract
The posterolateral corner (PLC) of the knee is a complex anatomical-functional unit that includes ligamentous and tendinous structures that are crucial for joint stability. This review discusses the intricate anatomy, biomechanics, and imaging modalities, as well as the current challenges in diagnosing PLC injuries, with an emphasis on magnetic resonance imaging (MRI). Recognizing the normal MRI anatomy is critical in identifying abnormalities and guiding effective treatment strategies. Identification of the smaller structures of the PLC, traditionally difficult to depict on imaging, may not be necessary to diagnose a clinically significant PLC injury. Injuries to the PLC, often associated with cruciate ligament tears, should be promptly identified because failure to recognize them may result in persistent instability, secondary osteoarthritis, and cruciate graft failure.
Publication History
Article published online:
20 May 2024
© 2024. Thieme. All rights reserved.
Thieme Medical Publishers, Inc.
333 Seventh Avenue, 18th Floor, New York, NY 10001, USA
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