Prepectoral implant reconstruction in the setting of post-mastectomy radiation

Prepectoral breast reconstruction after mastectomy is a more commonly performed technique in recent years due to its numerous advantages over subpectoral breast reconstruction. This study reviews the current state of clinical outcomes for patients undergoing postmastectomy radiation therapy (PMRT) after prepectoral breast reconstruction. A comprehensive search of the literature was performed using the Preferred Reporting Items for Systematic Review and Meta-Analyses guidelines to identify all relevant studies. Outcome measures included demographics, mean follow-up, and complication measures. Three studies for a total of 175 breasts were identified. Average age was 49.3 years and BMI was 27.7 kg/m². Mean follow up was 18.1 months. A total of 3 (1.7%) hematomas and 4 (2%) seromas were reported. Surgical site infection was the most common complication reported with an overall reported 32 breasts with infections (18%). A total of 9 (5.1%) cases of wound dehiscence were reported. Mastectomy flap necrosis was found in 10 (5.7%) breasts. A total of 22 (12.6%) tissue expanders or implants required explantation. The review of the literature suggests that prepectoral breast reconstruction with acellular dermal matrices in the setting of post mastectomy radiation therapy is a safe and successful surgical option resulting in excellent clinical outcomes. Furthermore, there may be a reduction of capsular contracture and implant migration in this setting, relative to traditional submuscular techniques with PMRT.