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Author Topic: Knee MRI, Help Interpreting Please?  (Read 3261 times)

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Offline eshofuni

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Knee MRI, Help Interpreting Please?
« on: May 20, 2010, 06:02:19 PM »
I am 32 and have been dislocating my patella over 20+ times since 17. My knee rides up and off the track as told to me by my pt. And it can pop out if I look at it wrong..  I also have flat feet and bow legs. But in general my knee gets stiff, sore, and it hurts often especially in certain positions or when extended. It also gives on me a lot.
Anyway, Here are my MRI Results from Radiology. PLEASE, can someone use lay terms to explain to me what it is saying:

There is a small effusion. This includes a small amount of fluid adjacent to the collateral ligaments. There is linear intermediate slightly increased signal intensity at the posterior horn of the medial meniscus extending to the inferior articulating surface compatible with a meniscal tear. Detail is limited secondary to linear artifacts. This is less likely secondary to an artifact which should be considered if the above finding does not correlate clinically. The anterior horn of the medial meniscus and anterior and posterior horns of the lateral meniscus are normal in appearance. There is a small amount of fluid, joint fluid less likely a meniscal cyst, adjacent to the posterior horn of the lateral meniscus

There is increased signal intensity at the ACL most likely representing joint fluid between the fibers of the ACL which is much more pronounced at the femoral attachment. The ACL appears intact. The PCL appears intact. The collateral ligaments are intact. The patella and quadricepts tendons are intact. Marrow signa intensities are normal

IMPRESSION: There is a small joint effusion. There is a linear signal intensity compatible with a tear of the posterior horn of the medial meniscus extending to the inferior articulating surface.

Ok, so there it is. I am going to go to a pain management Dr. soon. What does the above mean, and do I need surgery? Also could I have OA, DJD (OsteoArthritis)? WHy does it hurt all the time? ANy and all advice is appreciated. Thanks in advance- Dave

Offline crankerchick

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Re: Knee MRI, Help Interpreting Please?
« Reply #1 on: May 20, 2010, 07:37:15 PM »
Your MRI basically says you have tear in your meniscus. The meniscus is the disk of cartilage between the femur (thigh bone) and tibia (shin bone).

That MRI doesn't give much insight into your patella dislocation issue. X-rays and CT scans are generally better for getting a grip on patella issues. Your patella instability problem could be from a variety of things, so it's best to have a patella specialist in your corner.

Your symptoms seem consistent with the meniscus tear but could also be from whatever is causing your patella to dislocate so easily.

I would say you should see a patella specialist to get to the root of your patella issues, including evaluating your bowed legs and getting you into orthotics for your flat feet. I'm obviously not a doctor, i don't know which problem (the meniscus tear or the patella dislocation) is causing you the pain and giving way, but it could be either one, so you need to have a good specialist to evaluate you and figure it out before pursuing any surgical option.

As for surgery, generally speaking, your meniscus tear would be fixed surgically by removing the torn portion. But its important to get to the bottom of if that tear is what is causing your current issues. Otherwise, a surgery to fix the meniscus might not help you.

I highly recommend seeing a patella specialist and having a good set of x-rays and possibly ct scan performed.
1. standing lateral x-ray with knee bent to 30 degrees (to see patella height)
2. standing full leg length x-ray (to get a handle on the degree of bowing of the leg)
3. x-rays of knee bent to various degrees (to see the patella tracking)
4. ct scan (to see if there are femur and tibia rotational deformities and to see if you have any malalignment of the tibial tubercle)
Mar '07 - plica excision
Oct '09 - femoral + tibial derotational osteotomy & TTT
Aug '10 - hardware removal
"You control your leg. Don't let it control you." -Smart trainer
"Get your a$$ in gear and go for it! Nothing will happen until you make it!" -Smart doctor