n. 1  The act or process of dividing. 2  Cell division. 3  The operation of determining how many times one quantity is contained in another; the inverse of multiplication.
Research is looking at implant reconstruction with a tissue expander using a dermal matrix product to cover the implant compared to using skin and muscle to cover the implant. The dermal matrix essentially forms a âslingâ that helps form a pocket and support the lower portion of the implant, holding it in position.
Expander Implant. Post Mastectomy Reconstruction. Post mastectomy reconstruction with a tissue expander and implant involves a staged approach. A tissue expander is a temporary device that is placed on the chest wall deep to the pectoralis major muscle. This may be done immediately following the mastectomy, or as a delayed procedure.