And, it requires what would likely (in the past) be considered an over-expansion
of the breast
that is to be radiated. Then, it is about a year wait - AFTER - radiation is complete before you put in the implant.
As far as silicone vs saline, well, saline will can show wrinkles through the skin - if you have had a skin sparing type of mastectomy. Whereas a silicone implant will not. But, again, you need a surgeon to give you these answers.