Abstract
161 Background: We perform nipple-sparing subcutaneous mastectomies since 2002. Herein we report on 352 cases, in 156 of which acellular dermis (ADM) or meshs (tetanized polypropylene-mesh) as tissue interponates were used. The standard procedure of subpectoral implant positioning with or without caudo-lateral tissue interponates (acellular dermis or mesh) can lead to postoperative problems due to detachment of muscle. Against this background we did not form a submuscular pocket in individual cases, but instead placed the implant in a cranially and caudally covering ADM or mesh pocket. Methods: Between 06/11 and 03/12 17 patients were operated according to the above protocol, and the short-term follow up analyzed. Patients that had to get radiation therapy were not admitted to the study. Furthermore, we only included patients that were planned to get a second, contralateral operation so that corrections of the first operation were possible. Patients were between 34 and 58 years old. One patient had to receive radiotherapy due to a nodal involvement not diagnosed before. Results: Four patients had received prior surgery. Indications for subcutaneous mastectomies comprised invasive carcinomas with large DCIS, R1 resections or secondary prophylaxis. Mastectomy weights ranged between 225 and 1100 g; implant volumes ranged between 225 and 800 cm3. The cosmetic outcome was excellent, the margins of the implants were not visible. In three cases there was a partial necrosis of the nipple and in two cases a partial skin necrosis with the necessity of a wound revision. Conclusions: Using a ADM- or mesh-pocket instead of subpectoral positioning of the implant makes the operation in individual cases easier. Post-operative mobility is immediate and unrestricted. Since the implant size has to be chosen according to the tissue weight removed, a bilaterally identical cosmetic result can be archieved. Complications inculde a mild seroma formation without the necessity to puncture. However, the small number of cases and the short term follow up do not allow to make any statements about consecutive capsular fibrosis.
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