Difference between Alloderm and Strattice?

Alloderm is human skin and hence is defined as an allograft.  Xenografts are grafts from non humans such as the pig (porcine).  Strattice is a porcine graft and hence is a xenograft.  Both work in the human because of the processing by the company which removes antigens that cause rejection.  Both are well accepted in human surgery and have many millions of uses in man.  The choice in using them is related often to the surgeons preference.  Alloderm is softer and easier to sew through.  Strattice is typically thicker and tougher and sometimes preferable because of the thickness and strength it provides.  

Alloderm is derived from human cadaver skin, it has been processed to be acellular and therefore the recipient immune system doesn't reject it. The only problem I have seen with it when, it is used for cosmetic breast implant surgery, is the thickness of the alloderm is variable and doesn't seem to give much support.
Strattice is derived from pig skin and is also processed to be acellular and the immune system doesn't reject it. The advantage is the thickness of the tissue is consistent and, like alloderm, the body's blood vessels and collagen will grow into the tissue. Therefore reinforcing the support of the breast implant. This will diminish the risk of "bottoming out" and diminishes capsule contracture risks.
The Acellular status of the implant doesn't have the human nor porcine proteins. Therefore you, basically don't have a rejection risk with either tissues.

Hi! Thank you for the question. Strattice and Alloderm are both produced by the same company. One difference between them is in their origin: porcine vs. human. Strattice is derived from pigs but just as Alloderm, after processing it becomes acellular and your body doesn't reject it. They can both be use to correct bottoming out but Sttratice is significantly cheaper. Therefore it has become the go to product for some cosmetic procedures that require revisions.  I hope this helps and best of luck!