Hit head, lost grafts 3 days after surgery, what to do?

You have a surgeon, so your surgeon should address your problem. That has happened in my 16,000 surgeries over the past 29 years twice. Once I was able to retrieve the grafts from the car door, wash them and replace them and they grew just fine as it happened in front of my office. The second time, I replaced them at no charge to the patient. I always do the right thing for my patients, so should your surgeon.