I must be a rarity .... or have a wonderful surgeon! From what I understand, mine was ‘isolated’ (ie cut away from the surrounding Skin and tissue) but not actually cut OFF! The tumour removal went ahead UNDER the skin of my boob, with the extra fat of the boob used to fill in the holes from the tumours .... I had stitches surrounding the whole nipple, as it was sewn back on. So, over the last 18 months, it has healed well.
I now have a small ‘dent’ above the nipple, where some subsidence occurred but I chose not to have further surgery to fill in the dent.
I probably have about 75%+ sensation on my ‘replaced’ nipple .... it isn’t the ‘same’ - but is still as sensual as it can be.
You would need discuss it with your surgeon and go with his recommendations.