A 28-year-old member asked:
Can you tear acl/ mcl if a knee cap dislocation, x3weeks later still can't bend knee past 45* i've dislocated b4 and can't remember recovery last4ever.?
4 doctor answers • 10 doctors weighed in

Dr. Jason Torrenteanswered
Family Medicine 24 years experience
Unclear: If you are unable to flex your knee beyond 45 degrees, there may be a mechanical block. You should see a sports medicine specialist or an orthopedist to get hands on exam and likely an mri.
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Dr. J. patrick Tokarz commented
Specializes in Family Medicine
Start with your Primary Provider
Feb 1, 2012

Dr. Frank Holmesanswered
Sports Medicine 25 years experience
Yes, time for MRI: Patellar dislocations may have concurrent acl/mcl tears, but this is relatively uncommon. Inability to bend the knee could be due to a fracture, significant swelling or a mechanical block like a loose body (bone, cartilage piece). It's time to have a further evaluation by your orthopedic specialist, and most likely, an MRI will be ordered.
Created for people with ongoing healthcare needs but benefits everyone.
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Dr. Thomas Kennedyanswered
Orthopedic Surgery 44 years experience
Time 4 medical eval.: At this time you need to seek the advice of an orthopaedic surgeon who you trust. You need to be examined and may need studies such as xrays or an MRI to assess your injury.
Created for people with ongoing healthcare needs but benefits everyone.
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Dr. Theodore Shybutanswered
Sports Medicine 19 years experience
Yes it's possible: You should see a sports medicine specialist whose expertise includes knee reconstruction; acl/mcl and patella dislocation are more commonly independent, but sometimes do occur from the same injury; your md will perform a thorough exam which often can diagnose the injury(ies), get x-rays to rule out fracture, likely order mri, recommend + oversee treatment; you might benefit from surgery. Good luc.
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5.8k viewsReviewed >2 years ago
Last updated Jun 18, 2017
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