Who is the oldest knee surgeon

I'm a paraplegic (since I was 13 years old - 8/9/67) A car hit me (again) 12/24/92 (I was riding my father in laws scooter). Dr Vaughn did emergency surgery on my leg that night and placed a steel rod from my hip to my knee. Never had any problems with it afterwards. I did lose my leg btk 6 months later - gang green set up the night I had the accident, in my heel) When I started having pain shots from Dr Wyker several years ago, he showed Dr Vaughn my xray and he had really aged since he did my surgery! But all of the doctors I've met at Raleigh Ortho are really great!! Steven Smith is a PA but he's one of my favs!

I don't know if he does knees but my sister just had total hip replacement and Dr. Vaughn and his team did it and it's not quite two weeks and she's doing great. PT have her just using a cane now.