Double-bundle posterior cruciate ligament

Case contributed by Eric Errampalli
Diagnosis certain

Presentation

Right knee pain with frequent clicking and popping sounds.

Patient Data

Age: 25 years
Gender: Male

Normal anatomy of right knee with incidental double-bundle posterior cruciate ligament (PCL) noted on axial, sagittal, and coronal MRI.

Case Discussion

This case shows an incidental double-bundle posterior cruciate ligament (PCL). A double-bundle PCL consists of two separate bundles that originate adjacent to each other on the medial femoral condyle and insert on the posterior tibial plateau 1. It should be differentiated from the double PCL sign which can occur in a bucket handle tear of the medial meniscus or mimicked by normal anatomical ligaments 2,3.

Case co-author: Sriya Kosaraju (University of Missouri–Kansas City School of Medicine)

Case advisor: Anjum Shariff, MD FACR

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