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.
Keywords
posterolateral corner - knee - stabilizers - magnetic resonance imaging
