I broke my right collarbone in a race in 2013 and it was plated. A year plus later, I was on a training ride and a car on a cross street came up to a stop sign, stopped, looked both ways for cars, and pulled out about 20 feet in front of me. (To his credit, the guy stopped, waited for the police and ambulance, and had this "I can't believe I did something so stupid" look on his face. He called me the next day to apologize.) I went to the ER where they x-rayed me and told me there were no broken bones. I did a follow-up appointment with my ortho doc; he called up the x-ray, looked at it and cracked up. "C'mere, lookit this!" The plate was bent and the bone was broken at the bend. He decided it was best to leave it as is and let it heal. No problems since, but the collarbone is sensitive to external pressure - if the Army ever recalled me from retirement I wouldn't be able to carry a ruck.