I didn’t have the wires protruding, but had reaction to metal used. You don’t specify whether your sternum is closed or not, or what they plan to do if it isn’t.
I had them removed and they did a double peck flap surgery to close and protect open area of sternum. I did not have the same pain I had with original heart surgery and have no problems since. It was well worth it.
I know what you describe was explained to me as something that can occur. Hope this helps!