Long-term Follow-up and Trends in Breast Augmentation in 527 Transgender Women and Nonbinary Individuals: A 30-year experience in Amsterdam

Background Transgender women and transfeminine spectrum nonbinary individuals may opt for breast augmentation. The aim of the study is to analyze the complications, surgical trends, and long-term follow-up of breast augmentations in this population over the past 30 years. Methods All transgender women and nonbinary individuals who underwent breast augmentation at our center between 01-1990 and 01-2020 were retrospectively identified. A retrospective chart study was conducted, recording individual demographics, implant characteristics, surgical timing, postoperative complications or other reasons requiring reoperation, and implant survival. A literature search was performed in MEDLINE on clinical outcomes and revision surgery of this procedure. Results A total of 527 individuals were identified. Median clinical follow-up time was 11.2 years (interquartile range 3.3-17.5). Median implant size increased significantly over the last years (1990-1990 median 275cc, 2000-2009 252cc, 2010-2019 375cc, p<0.01). Most individuals underwent breast augmentation and genital gender-affirming surgery in one-stage. Reoperations due to short-term complications were infrequent (hematoma (0.4%) or infection (0.4%)). Reoperations due to long-term complications comprised: implant rupture (5.7%), capsular contracture (4.9%), aesthetic problems (3.8%), low-grade infection (0.4%), or seroma (0.6%). In total, 2.5% of individuals requested larger implants. After performing the literature search and manuscript screening, 9 out of 115 identified studies were included for review. Follow-up time ranged from 30 days to 5.5 years. Reported complications requiring reoperation were capsular contraction (range 0.0-5.6%), asymmetry (3.6%), hematoma (range 0.0-2.9%), infection (range 0.0-0.9%) and implant rupture (0.7%), Conclusion Implant-based breast augmentation is a safe procedure in transgender individuals.