I'm sorry to hear you're still getting volume reflux. Bill might be the one to answer you question best. My question is this...what were the credentials of the surgeon who did your wrap? How many of the surgeries had he/she done?
This surgery is an art form, and it takes hundreds and hundreds of procedures to really get it down.
If you're not feeling that your first surgery was a success I'd suggest that you research surgeons in your area or even within driving distance (a medical center like Cleveland Clinic, Mayo, or Johns Hopkins, etc.) and get a second opinion from another surgeon. It doesn't make sense to me to go back to the same person you suspect has done the first one incorrectly.
Just something to think about.