Nipple-areola complex reconstruction in transgender patients undergoing mastectomy with free nipple grafts: a systematic review of techniques and outcomes

Nipple-areola complex (NAC) reconstruction in transgender and gender non-binary (TGNB) individuals undergoing chest wall masculinization surgery is critical for adequate satisfaction and aesthetic results. Here, we conducted a systematic review to find the various techniques and outcomes of NAC reconstruction in double-incision mastectomy and free nipple grafts (DIM-FNG). A comprehensive search of several databases was conducted based on PRISMA guidelines. We included studies that described the NAC reconstruction technique after DIM-FNG, and evaluated the surgical outcomes, or satisfaction, or aesthetic results after a minimum duration of follow-up of 6 months. Studies were assessed for risk of bias. A qualitative synthesis was performed. A total of 19 studies, comprising 1,587 patients (3,174 breasts), were included. There was a total of 14 studies using the conventional FNG technique, 4 describing new approaches for NAC reconstruction in FNG and 1 study comparing the conventional FNG technique to another alternative technique. A total of 1,347 patients underwent DIM-FNG with conventional FNG and 240 underwent alternative techniques for NAC reconstruction after DIM-FNG. Postoperative complications were low, and satisfaction was high for conventional and alternative techniques. Newer techniques aim to reshape the new NACs in an oval shape, reduce nipple size and place the NACs using the pectoralis major lateral and inferior borders as reference. In addition, a horizontal oval incision at the recipient site may avoid an undesired vertical NAC.