Anterior cruciate ligament rupture - isolated

Case contributed by Henry Knipe
Diagnosis certain

Presentation

Twisting injury one week ago.

Patient Data

Age: 25 years
Gender: Female

Moderate knee joint effusion.

Complete anterior cruciate ligament rupture appearing proximal-midsubstance. Posterior cruciate ligament is intact. No acute posterolateral corner injury. Collateral ligaments are intact. Menisci are intact. 

Osteochondral impaction fractures through the sulcus terminalis of the lateral femoral condyle as well as both the posteromedial and posterolateral tibial plateaus.

Case Discussion

This case demonstrates an anterior cruciate ligament rupture without any other associated meniscal or ligamentous injury. There is the typical pivot shift pattern of bone marrow edema

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