Probably legitimate: There are several structures in the knee that can cause you knee to feel like it has popped and make it give way. Probably most common is a meniscal tear (cartilage tear) where the the torn piece of cartilage jams in your knee, causes pain and your bodies reflex is to let your leg collapse to reduce the pain in your knee. You may have you knee cap or patella or ligament injury. Needs examinatio
Answered 12/19/2016
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Well : And general anybody falling down with a knee problem needs to see an orthopedic doctor this is generally a torn ligament or Meniscus
Answered 1/1/2017
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