People do notice quite a difference sometimes after surgery but its not much to do with implants, my old 380s weighd under 2ib and these 460 weigh just over 2ib, so its not a huge amount, after surgery the meds can make a difference, aswell as not been fully mobile, and the constipation. I lost weight first time, but 2nd I gained and I found I seemed to have a lot of fluid retention xx