Safety and Clinical Performance of a Biological Matrix Used in Implant-based Breast Reconstruction

Inclusion Criteria: * Patient aged ≥18 years, * Patient with an indication of breast reconstruction after mastectomy (therapeutic or prophylactic), * Patient being informed of her participation to the study and of the follow-up visits, and having no objection to the clinical data collection and medical file access, * Patient being informed of the porcine origin of the device in advance of the procedure. Exclusion Criteria: * Patient with known hypersensitivity to porcine materials, * Patient with an existing infection at the site of implantation, * Patient having refused to participate to the study, * Patient refusing to return for the follow-up visits, * Patient who is pregnant.