MRI
Sagittal PD
Sagittal T2
Coronal T1
Coronal STIR
Axial T2
The patient encountered a hyperextension injury of the knee with the resultant constellation of findings:
- avulsion fracture of the PCL with bony fragment from its tibial attachment
- horizontal tear of the lateral meniscus with large parameniscal cyst
- abnormal signal within the belly of popliteus muscle likely hematoma with intact popliteal tendon
- bone bruise at the posterolateral corner of the tibial plateau
Lateral collateral ligament, biceps femoris tendon, popliteo-fibular ligament, arcuate ligament and iliotibial tracts are intact.