Follow up Study Groups

I had surgery almost 26 years ago, Dr. Fobi himself, along with I think...a Dr. Lee did my surgery. I would like to know if there is any sort of on going study of long term pat. who's had surgery and are doing just great?  I have never had one problem, and I never gained any of my weight back. I've lost 200 amazing pounds.  I'm healthy and happy and honestly thinking about calling Dr. Fobi's office myself to see if he'd like to see me once more. Please if anyone has any info that might help me, would you pass in on?  Thank you.