Doc visit MRI: Need to see a doctor and probably get a MRI of your knee. Classic sign of a meniscus tear is that if it is displaced or "jammed" inside the joint it prevents you from straightening your knee out (like a doorstop). Chronic arthritis of a knee can also cause a flexion contracture (cannot straighten knee out) people hurt more at night because of use during day or less stimulation to distract.
Answered 8/20/2015
5.2k views
POSSIBLE: Meniscal tear or chondral lesion. See ortho doc.
Answered 5/24/2016
5.2k views
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