@rundocuri- I'm guessing that the surgery itself is not nearly as painful as breaking your collarbone! Anyone who has experienced this injury is probably relieved to have the surgery to correct it.
I use to work with athletes and have been there when several of them broke their collarbones while playing sports. Some people experienced sudden, severe pain while others didn't even know they had broken collarbones until they had x-rays. I think that the pain depends on the person and the severity of the break. But I think that surgery to correct the problem is less painful because a doctor is able to manage the patient's symptoms following the procedure.