Sir:FigureStudies have shown that although more patients undergo breast reconstruction with implants than with autologous tissue transfer, better symmetry is observed in flap-based reconstructions.1,2 As surgery to treat breast cancer becomes more conservative with regard to skin and pectoralis major muscle preservation, the indications for breast reconstruction with silicone implants tend to increase. Obtaining long-lasting symmetry on implant-based reconstructions is a major challenge. Implant-reconstructed breasts have particular characteristics, including increased firmness, decreased mobility, and maintenance of their shape over time. These factors make contralateral symmetry difficult to achieve using mammaplasty techniques. Although the reconstructed breast maintains its shape, the opposite breast evolves with ptosis, leading to breast asymmetry. A new approach to breast symmetrization for implant-based reconstructions was idealized based on the following goals: achievement of dynamic breast symmetry, with similar firmness and a more permanent result. We called this procedure structured mammaplasty. In the breast anatomy, the critical structure for mobility is the Chassaignac bursa, located on the retromammary space, just below the superficial fascia. It is connected to the Cooper suspensory ligaments and allows the breast to move over the chest wall.3 Our rationale is that resection of the breast base, including the Chassaignac bursa, decreases breast mobility. Breast support is achieved through the insertion of a retromuscular silicone implant. It increases breast consistency and provides a supportive structure to the symmetrized breast. The goal is to create an internal support pillar for the breast. The reduction of the breast volume and insertion of an implant increases the proportion of silicone in the final breast, leading to increased mammary firmness. Regarding surgical technique, the thoracic midline, mammary folds, and the mammary gland edges are drawn on the skin. The gland limits correspond to the basilar resection. An incision is made on the mammary fold, involving the skin, subcutaneous tissue, and superficial fascia, down to the fascia of the pectoralis major muscle. The mammary gland is then released from the pectoralis major muscle in a suprafascial plane. The resection of the gland base, involving the bursa described previously, is performed above the superficial fascia. After this basilar resection, a retromuscular pocket is dissected beneath the pectoralis major muscle. The implant is placed in this space, and the inferolateral aspect of the implant is covered with the serratus muscle. The nipple-areola complex is displaced with a superior pedicle, and excess skin is resected as needed. This technique was performed in 10 patients. After 1 year, photographic records of these patients were compared with the photographs of patients submitted to classic mammaplasty symmetrization, performed by the same surgeon, with similar follow-up. Independent, board-certified plastic and breast surgeons evaluated these photographs. All patients presented with better symmetry when compared with the patients on the mammaplasty symmetrization (Figs. 1 and 2). The preliminary results with this new approach are promising, but longer follow-up periods and randomized prospective studies are needed to demonstrate its effectiveness.Fig. 1: Photograph obtained 2 years postoperatively of a left breast reconstruction with an expander implant and right breast symmetrization using the structured mammaplasty technique.Fig. 2: Photograph obtained 2 years postoperatively of a left breast reconstruction with an expander implant and right breast symmetrization using a mammaplasty technique without implant. The breast asymmetry is evident at long-term follow-up.Marcelo M. C. Sampaio, M.D. Division of Plastic Surgery, Hospital Sírio Libanês Murillo Fraga, M.D., Ph.D. Division of Plastic Surgery, Santa Casa de Misericórdia de São Paulo Ana Paula Ferreira, M.D. Alfredo Carlos S. D. Barros, M.D., Ph.D. Division of Plastic Surgery, Hospital Sírio Libanês, São Paulo, Brazil DISCLOSURE The authors have no financial interest to declare in relation to the content of this article.
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