Oncoplastic mammoplasty as a strategy for reducing reconstructive complications associated with postmastectomy radiation therapy

Given the high complication rates in patients who require radiation therapy (XRT) after mastectomy and immediate reconstruction, and the low local recurrence rates following neo-adjuvant chemotherapy and breast conservation therapy, we sought to determine if using neo-adjuvant chemotherapy and oncoplastic mammoplasty as an alternative to mastectomy and immediate reconstruction is an effective strategy for reducing complication rates in the setting of XRT. A prospectively maintained data base was queried for patients who received neo-adjuvant chemotherapy and XRT between 2001 and 2010 and underwent either oncoplastic mammoplasty or mastectomy with immediate reconstruction. Rates of postoperative complications between groups were compared using Fisher's exact test. Outcomes from 37 patients who underwent oncoplastic mammoplasty were compared to 64 patients who underwent mastectomy with immediate reconstruction. Mean follow-up was 33 months (range 4-116 months). Rates of postoperative complications, including unplanned operative intervention for a reconstructive complication (2.7% versus 37.5%, p < 0.001), skin flap necrosis (10.8% versus 29.7%, p = 0.05), and infection (16.2% versus 35.9, p = 0.04) were significantly higher in the mastectomy group. Overall, 45.3% of patients who underwent mastectomy developed at least one breast complication, compared to 18.9% of patients who underwent oncoplastic mammoplasty (p = 0.01). If XRT is indicated after mastectomy, attempts should be made to achieve breast conservation through the use of neo-adjuvant therapy and oncoplastic surgery in order to optimize surgical outcomes. Breast conservation with oncoplastic reconstruction does not compromise oncologic outcome, but significantly reduces complications compared to postmastectomy reconstruction followed by XRT.