Prepectoral Wise-Pattern Staged Implant-Based Breast Reconstruction for Obese or Ptotic Patients.

Introduction: The obese or ptotic breast demonstrates significant difficulty in breast reconstruction after mastectomy with increased rates of perioperative complications compared with the general population, regardless of reconstruction type. Implant-based reconstruction in this patient population with the traditional horizontal elliptical skin-sparing mastectomy tends to have aesthetically displeasing qualities secondary to skin flap redundancy and blunting of the breast contour. Wise-pattern closures have been described with submuscular direct-to-implant and 2-stage reconstructions, with more favorable complication profile when staged. Our study aims to report outcomes and safety of a prepectoral 2-stage wise-pattern closure technique in the obese and/or ptotic population.

Methods: A retrospective chart review was performed to identify all overweight, obese, and/or grade III ptotic patients who have undergone a 2-stage, wise-pattern skin closure with prepectoral placement of tissue expander by a single surgeon. Patient demographics, comorbidities, and perioperative descriptors were reported. Delayed wound healing, infection, seroma formation, and explantation or reoperation were recorded for each patient involved in the study.

Results: Thirty-seven obese and/or ptotic breasts among 21 patients underwent immediate prepectoral tissue expander placement with wise-pattern skin reduction closure with mean body mass index of 35.3 kg/m, and 25% of patients were diabetic The most common complication rates by breast were seroma formation (50%) and wound/dehiscence at T-point (28.6%), which all ultimately healed with intervention as described. One major (2.7%) and 1 minor (2.7%) infection were successfully treated with antibiotics. There were no cases of implant exposure. Two operative complex repairs and 1 elective explantation were performed. Diabetes and increasing body mass index were statistically associated with an increased overall perioperative complication rate.

Conclusions: Prepectoral, 2-stage breast reconstruction with wise-pattern skin reduction performs well in obese and/or ptotic patients with favorable rates of perioperative complications. Wound dehiscence was prevalent but managed with wound care when complex repair was not required to expedite adjuvant chemotherapy. Infection rates and reoperation rates were low, and all patients reported positive aesthetic results at the completion of reconstruction.