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.
After a mastectomy, a tissue expander is inserted beneath chest wall muscles, where it is positioned within a pocket of tissue. Because your expander and your implant are surrounded by muscle, instead of being on top of muscle or only partly under muscle, the weight of the device will be well-supported.