Anterior cruciate ligament (ACL) (tibial eminence) avulsion fracture

Case contributed by Dr Amr Farouk

Presentation

25 years old presenting with severe pain following a direct blow to the knee.

Patient Data

Age: 25 years
Gender: Male

Avulsion fracture of the  anterior cruciate ligament attachment invovling the majority of the tibial eminence with complete seperation of the fracture fragment.

LCL is thickened & presented with areas of intermediate signal intensity in all pulse sequences along its course.

mild to moderate intra articular joint effusion with hemorthrosis  (blood / fluid level) is noted.

the opposing lateral femoral & tibial condyles as well as the opposing bones of proximal tibio-fibular articulation shows patchy areas of high STIR signal intensity.

Case Discussion

Avulsion fracture of the  anterior cruciate ligament attachment involving the majority of the tibial eminence with complete separation of the fracture fragment. Picture impressive of type 3B avulsion fracture of the ACL attachment according to the Meyers and McKeever system.

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Case information

rID: 43509
Case created: 14th Mar 2016
Last edited: 15th Mar 2016
Inclusion in quiz mode: Included

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