Posterior root ligament tear

Case contributed by Dr Ahmed Abd Rabou

Presentation

Knee pain, swelling and sense of giving away 2 weeks following trauma

Patient Data

Age: 43 years old
Gender: Male
Modality: MRI

There is complete ACL tear and PCL sprain. The medial meniscus is extruded medially with torn posterior root ligament. Parameniscal cyst at lateral meniscus yet no definite tear. joint effusion.

Modality: Annotated image

The orange circle and the green arrow refers to the torn posterior root ligament of the medial meniscus

Case Discussion

Root ligaments hold the menisci in place. Posterior root ligament of the medial meniscus is the most injured one and result in meniscal detachment and displacement.

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Case Information

rID: 33366
Case created: 9th Jan 2015
Last edited: 6th Jan 2016
Inclusion in quiz mode: Included

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