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Avulsed anterior cruciate ligament with meniscal tear

Case contributed by Dr Mahmoud Zaki


Twisting and instability of the knee

Patient Data

Age: 21 years
Gender: Male
  1. The posterior horn medial meniscus shows  triangular intermediate signal intensity at PD not reaching the articular surfaces suggesting its degeneration.
  2. The posterior horn lateral meniscus shows a complex linear intermediate signal intensity at the PD with both vertical and transverse component, Also a part of this altered signal became hyper-intense at T2 confirming fluid leakage into the meniscal substance. Features denoting flap tear PHLM.
  3. The medial articular surface of the patella shows irregularity with sub-articula sclerosis suggesting early osteoarthritis of the patello-femoral articulation.
  4. The tibial plateau shows a hyperintense T2 and STIR line extending at the anterior cruciate ligament attachment site with surrounding bone marrow edema and a separated bony fragment attached to ACL lower end. Features suggestive of recent ACL avulsion from tibial insertion. 

Case Discussion

Surgical repair was performed with confirmation of the meniscal tear.

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Case information

rID: 24714
Published: 6th Sep 2013
Last edited: 14th Aug 2019
Inclusion in quiz mode: Included

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