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Author Topic: Can a MCL sprain lead to a ACL tear?  (Read 6514 times)

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Offline meeru92

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Can a MCL sprain lead to a ACL tear?
« on: June 26, 2012, 07:17:01 PM »
My son sprained his MCL at a football combine (at least we think it was a MCL sprain since we are taking the family Dr. word with no MRI). Two weeks later he felt much better and went to another football camp (no brace or wrap), his knee buckled and a MRI showed a torn ACL, and sprained MCL.
Could the original sprain cause the ACL tear?     

Offline Kaputt_Knee

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Re: Can a MCL sprain lead to a ACL tear?
« Reply #1 on: June 26, 2012, 08:25:27 PM »
Most likely scenario is that the ACL was almost torn or even completely ruptured in the initial incident. If you google "unhappy triad" you will see that MCL injuries are often associated with ACL injuries. ACL injuries are also frequently initially diagnosed as sprains. This is especially true where there is good muscle tone around the knee, such as with a footballer. It was only when your son stressed the knee again at the training camp that the knee gave way.

A sprain almost certainly would not lead to a tear of another structure within the same joint. But the reverse is more than common.

I am a Brit, so I understand the use of the name football as being assigned to a much older game than American Football. Football players this side of the Pond quite often suffer ACL injuries and they are rarely isolated injuries of that structure alone. However, the football players here are not armoured up either so they don't have to worry about the extra weight!  ;)
1989 big trauma R. knee - sorted
1990-2004 3ACL recons and 20+ arthroscopies -RK
3/06 LK ACL torn!
4/06 ACL recon, kneecap broken
09 &10/06- 2x meniscus trims
3/07 - Notch Plastic & Lateral Release
14/8/08 complete revision ACL plus LCL/PLC recon
6/2/09 returned to skiing! Whoopee