The implants can be used for an immediate reconstruction positioned under the pectoral muscles or with the support of a mesh or with donor tissue in the shape of a hammock. They are used mainly when the skin is preserved and also the nipple areola complex.
The expanders are used mainly in a delayed reconstruction, that means that when a mastectomy is performed, the expander is implanted under the pectoral muscles to prepare the space for a future reconstruction when the oncological treatment is finished. The expander is placed under the muscles at the time of the mastectomy and slowly expands each week until the desired size is obtained.
It is left in place for a few months and in a second operation, it is replaced by a silicone implant.