Use of human acellular dermal matrix in implant- based breast reconstruction: evaluating the evidence

The use of acellular dermal matrix (ADM) in implant based breast reconstruction has become increasingly popular to the point that a subset of surgeons use ADM for virtually every tissue expander/implant based reconstruction. While there may be a number of perceived and anecdotal advantages such as decreased post-operative pain, increased initial expander fill volume, and improved aesthetic outcome, it remains unclear as to whether there is sufficient evidence to support these as well as other claims or its routine use. In this review, we identified all papers in the PubMed and Medline databases that addressed outcomes of the use of ADM in single and multiple staged implant based breast reconstruction. Papers were evaluated for any claim of benefit in using ADM in breast reconstruction. The following perceived advantages were supported solely by anecdotal reports and opinions: reduction in post-op pain, decreased operative time, precise control of the lateral and IMF, maximal use of mastectomy skin flaps, and improved lower pole expansion. There was inconsistent data for commonly perceived advantages, such as: eliminating the need for expanders, increased initial fill volumes, fewer expansions, faster time to reconstruction completion, decreased rate of revision, and improved aesthetic outcome. We found consistent support for a decreased incidence of capsular contracture; however the existing reports have limited long term follow-up. Despite the many heralded benefits of ADM in breast reconstruction, the data supporting these claims is mostly anecdotal. Both long term outcomes and randomized controlled prospective studies are needed in order to definitively evaluate the perceived advantages of ADM in breast reconstruction.