A member asked:

My knee popped wednesday evening and since i haven't been able to put any weight on it, now my leg and foot are very cold... what do i need to do?

A doctor has provided 1 answer

Exam needed: I recommend that you have your leg and knee examined by an orthopedic surgeon for diagnosis and treatment. It's possible that you sustained a simple sprain, but a torn ligament or cartilage is also a possibility. The cold sensation may simply be reflex reaction but the leg circulation(arteries and veins) will also be examined.

Answered 2/26/2017

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