AlloDerm Vs Strattice in Terms of Rejection Rate?

Both products consist of a sheet of collagen matrix from skin with all cells removed. They act as a framework to support the ingrowth of your own tissue over time, and so they are proving very useful in breast  implant surgery, both in reconstruction  and revisions of augmentation. Alloderm is from donated human skin, and it has been in use for more than 10 years with an excellent safety record. It is used primarily for breast reconstruction to support implants. Strattice is a newer product that is porcine derived, and processed so as to be very biocompatible. In other words, even though it is non-human sourced, it behaves the same way as Alloderm in the body. It is used for revisions of augmentation for certain problems, and also for abdominal hernias because it is quite strong. More info on Strattice at renewingyou.com.

I personally consider them to be the same in terms of incorporation, which is to say "rejection rates" but I would not make a decision to use either one based on that factor, but rather on what you are trying to achieve with the product. 
If you are considering a cosmetic operation to repair a problem with an augmentation (symmastia, rippling, bottoming out, double bubble), or with a lift and an implant (recurrent ptosis, implant malposition), then I personally use Strattice as the properties of the material are better because you need a firm supportive material to correct most of these problems. However, in breast reconstruction I prefer to use Alloderm because it is a softer, more pliable product and can allow the expander and then implant to sit in a more natural position or provide coverage of an implant in reconstructive cases that go directly to implant.

Depends on the application.  Like Dr Baxter, I have used these tissues and other scaffolds for over 10 years and I believe each surgeon develops his or her own algorithm on when they recommend each product.  I use Alloderm in Insurance based cases because many insurance companies still reimburse for Alloderm and would recommend it when you are looking for the tissues to stretch and expand like in patients having breast reconstruction...over very poor areas of perfusion of bad blood flow...radiated tissue---heavy scarring---thin tissues etc.If looking for support or particularly for capsular contracture repair particularly in cosmetic patients I prefer Strattice.  Strattice is also less expensive.Some patients have ethical or religious objections to products that are porcine/pig or human based donor tissue as well which we discuss with every patient.The bottom line however is these tissues are treated to remove all cells and impurities that our bodies would react to and are very safe and effective.  Plus many time patients will require additional tissues like these ADM's because their bodies cannot effectively heal without bringing in some additional tissues.We all know the definition of insanity...doing the same thing over and over hoping for a different outcome.  In some patients we have to do something different and add tissue to break the cycle of revision.All my Best!Dr B