There is one metal plate installed in my right leg with support of knee. there was minor gap between joint of lower and upper bone after accident and for filling this gap, bone drafting was done on knee, then plate was installed to support with 6 screws. After two years of this surgery, I don't have any pain normally when I sit. but swelling and minor pain is there on lower side when I walk too much. and always I am stuck in security checks in airport. so, I want to get it removed. pls suggest