ADMs and synthetic meshes improve implant-based breast reconstruction aesthetics, but at what cost?

Acellular dermal matrices (ADMs) have shown promise for use in reconstructive breast surgery as they improve aesthetic outcomes and decrease capsular contracture rates. However, concerns about their use remain because of the higher cost and complication profile. We report a single institution's implant-based-reconstruction (IBR) experience between 2007 and 2021, including cases performed by 51 plastic surgeons. For each stage of IBR, data on age, comorbidities, type of mesh used, and acute complications were collected. Of 1379 patients who underwent subpectoral IBR, 937 received an ADM or synthetic mesh as part of their reconstruction. 256 patients out of 264 treated with prepectoral IBR received an ADM or mesh. Infection and wound dehiscence rates were highest for patients who underwent prepectoral IBR with ADM. Both subpectoral and prepectoral IBR with ADM were associated with higher rates of infection and wound complications compared to without ADM or mesh, but only the difference among the subpectoral cohort reached statistical significance. Prepectoral IBR with ADM or mesh had the lowest rates of capsular contracture and aesthetic reoperations. Although the use of Vicryl® mesh in subpectoral IBR was associated with a higher risk of capsular contracture and skin flap necrosis compared to reconstruction with ADMs (10.53% versus 3.29%; p < 0.05), Vicryl® was associated with fewer aesthetic revisions. Our study demonstrated that prepectoral IBR with ADM or mesh resulted in the fewest aesthetic reoperations and the lowest rates of capsular contracture. Infection and wound dehiscence rates were notably higher for patients who had reconstruction with ADM.