Hi Gab66, I didn't have radiation but did have a skin and nipple saving mastectomy with immediate reconstruction using a silicone implant. My implant is under my pec muscle and is held in place using a mesh insert to act as a sling. My surgeon didn't know whether I was going to need radiation but advised me that if I did need it the team would be able to perform the therapy anyway. She advised that there were issues that could arise but that was the plan going into surgery and turned out I didn't need radiation so didn't have to face that hurdle. More than happy to answer any questions you may have if I can help. Xx Cath