Retrospective Study of AlloMend Acellular Dermal Matrix (ADM) Allograft and Pre-Pectoral Breast Reconstruction

A Study to Evaluate the Safety and Effectiveness of AlloMend® Acellular Dermal Matrix Used in Post Mastectomy Pre-Pectoral Breast Reconstruction and Followed for Up To 12-Months Post-Operatively

This retrospective, single-site study will provide information regarding the efficiency of AlloMend® Acellular Dermal Matrix allograft in Pre-Pectoral Breast Reconstruction surgery following a single or double mastectomy.

AlloMend® Acellular Dermal Matrix AlloMend® is a sterile, ready-to-use, human-derived acellular dermal matrix (ADM) allograft that can be used in a number of reconstructive and other surgical procedures. It is made from donated human full-thickness skin. After the epidermal and hypodermal layers are removed, the tissue is treated by a proprietary cleansing process.

AlloMend® is intended to be used in conjunction with a breast implant or tissue expander to stabilize implant position and minimize implant loss during post-single or double mastectomy, unilateral or bilateral pre-pectoral breast reconstruction in women 18 years of age or older. AlloMend® may be used in either one-stage (direct-to-implant) or two-stage (expander-to-implant) procedures.

This retrospective study will be performed at one center in the United States.

Information from the preoperative clinical visit and Pre-Pectoral Breast Reconstruction surgery utilizing AlloMend® Acellular Dermal Matrix allograft, approximately 200 breasts (and up to 100 patients), and the follow-up clinical visits at approximately 2 weeks, 6 weeks, 3 months, 6 months, and 12 months, including clinical assessments, imaging, and patient-reported outcomes, will be collected.

Inclusion Criteria:

Patients must meet the following inclusion criteria to participate in this study:

• Female ≥ 18 years old.
• Patients have undergone a single or double mastectomy, followed by AlloMend® Acellular Dermal Matrix -assisted, pre-pectoral breast reconstruction.
• Patients have undergone either one-stage (direct-to-implant) or two-stage (expander-to-implant), unilateral or bilateral pre-pectoral breast reconstruction using AlloMend®.

Exclusion Criteria:

Patients must not meet any of the following criteria to be considered for this clinical trial:

• Did not utilize AlloMend® Acellular Dermal Matrix allograft during pre-pectoral breast reconstruction
• Did not have post-operative evaluations at the clinical site.