The P1 Method: Prepectoral Breast Reconstruction to Minimize the Palpable Implant Edge and Upper Pole Rippling.

BACKGROUND: Prepectoral prosthetic-based breast reconstruction has become increasingly popular as an alternative to the partial or total submuscular approach. Potential issues with the prepectoral approach include a noticeable superior implant edge and implant rippling. These concerns are particularly apparent in thin patients. We introduce a novel muscle-sparing technique in which a partial-thickness slip of pectoralis muscle is created in an otherwise prepectoral plane to mask these upper pole defects, mask superior implant rippling, and provide greater implant support (The P1 Method). METHODS: A retrospective review of all patients undergoing modified prepectoral (P1) breast reconstruction at a single institution over 2 years was undertaken. Data pertaining to patient demographics, mastectomy type/weight, reconstruction type, and esthetic and surgical outcomes were collected. Outcomes were analyzed using Fisher exact and Student t tests. RESULTS: Fifty patients (93 breasts) were identified during the study period. Mean final follow-up was 63 weeks (range, 53-85 weeks). Patients undergoing P1 reconstructions achieved improved esthetic results with less implant rippling and complete elimination of animation deformity seen on postoperative clinical images or at final follow-up. CONCLUSIONS: As prepectoral prosthetic-based breast reconstruction becomes more popular, architectural adaptations will be made to improve surgical and patient-centered outcomes. The P1 Method is effective in improving the superomedial contour in thin patients, minimizes upper pole rippling, and provides greater overall implant support.