The posterolateral corner (PLC) of the knee is composed of numerous ligamentous and tendinous structures that provide restraint and stability. This anatomy is complex, and at times controversial. We present a comprehensive review of the normal anatomy and pathology of the PLC. We highlight potential pitfalls of image interpretation and detail what the referring physician needs to know.
Keywords: Arcuate ligament; Biceps femoris; Fabellofibular ligament; Fibular collateral ligament; Lateral collateral ligament; Popliteofibular ligament; Popliteus; Posterolateral corner.
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