My daughter recently had an explant so I asked for her input to your question. It is as follows: I would recommend a doctor that does a lot of fat grafts and uses a safe and small removal needle so that the fat is harvested well and replaced in a healthy manner otherwise I have heard of cases where the fat will necrosis and cause hard deposits in the breast. I had a fat graft after my explant and have been very happy with the results. I can not tell you how much fat stayed as I had my implants for almost 20 years and don't remember the look I had before but some fat may dissolve after which is another reason to invest in a good doctor. This is a straightforward and easy procedure to recover from. You will be more sore in the areas the fat was harvested/removed from then your breast after. I went to Dr. Whitfield in Austin, TX.