I am going to have a metal plate put in my back during spine surgery. I've heard that bodies sometimes reject implants. Could this happen to me?

It rarely happens with surgical implants. The metal screws, rods, and plates used in back surgery are usually made of stainless steel, titanium, or alloys. These metals have been tested and chosen for their acceptance by the body.

Implants do sometimes need to be removed because they become infected. But the infection is not a sign that the body is rejecting the implant. Infection is simply a risk of all surgeries.