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Old 10-03-2012
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Rheumatology/Orthopedics Knee injury; Unhappy triad

Hey everybody, I need your help, I am studying the FA QB and in one question the unhappy triad is the injury in Anterior Cruziate Ligament (ACL), the Medial Collateral Ligament(MCL) and the Medial Meniscus MM, but in the FIrst Aid 2012 USMLE step 1 book, the Unhappy triad is: ACL, MCL and Lateral Meniscus, not Medial Meniscus...now I am confused, it's the Medial Meniscus or the Lateral Meniscus?
I will appreciate all your interventions.
Thank.
Daily
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Old 10-03-2012
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Medial meniscus injury occurs 5x more than Lateral meniscus but in contact sports injury,Lateral M. is more commonly torn.
So it depends on how pxt got injured
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Old 10-03-2012
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please download errata changes made to F.A------it has changed lateral meniscus to medial meniscus......so dont worry
medial meniscus is correct
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http://firstaidteam.com/wp-content/u...ata-110817.pdf


http://firstaidteam.com/wp-content/u...a-120425v2.pdf

thanx vencky,they did make the correction in 2012 errata
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Old 10-04-2012
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The unhappy triad was redefined in the early 1990s to include the lateral meniscus and not the medial meniscus.

Ref:
http://ajs.sagepub.com/content/19/5/474

Many ortho docs and teachers are still debating this issue and different texts mention different combinations of the unhappy triad; therefore, I firmly believe that you won't get a question about the unhappy triad in the USMLE exam because it's controversial.

More and more people are saying that we should just say meniscus (without specifying the lateral or medial) as injury can affect any of them.

This issue has been discussed several times in the forums before, just look at the list of similar threads at the bottom of this page.

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