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Gig Harbor, WA
A 37-year-old female asked:

What does slight lateral positioning of the patella and shallow trochlear groove with min. anterior lateral femoral condyle ridge reactive change mean?

1 doctor answer2 doctors weighed in
Dr. David Trettin
Orthopedic Surgery 33 years experience
Common MRI : It means that your kneecap sits slightly off to the side on the end of the thigh bone( trochlea) @ 90degrees of bend. ( flexion), and your 'groove' ( trochlea) is slightly shallow on your femur. Very common radiologic ' diagnosis' , seen most commonly in patients w/ 'mild' patellar instability or ' kneecap' pain. See your ORS for significance . Best of Luck!

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Last updated May 21, 2014

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