The First Experience of Using the Pedicled Labia Minora Flap for Urethral Lengthening in Transgender Men Undergoing Anterolateral Thigh and Superficial Circumflex Iliac Artery Perforator Flap Phalloplasty: A Multicenter Study on Clinical Outcomes.

Objective: To describe the novel surgical technique of urethral lengthening in anterolateral thigh and superficial circumflex iliac artery perforator flap phalloplasty with a pedicled labia minora flap (PLMF) and report on the clinical outcomes.

Methods: Between March 2014 and August 2018, 16 transgender men underwent phalloplasty with a PLMF for urethral lengthening at the Amsterdam UMC (VU university), the Netherlands and the Belgrade University Hospital, Serbia. Patient demographics, surgical characteristics, neourethra characteristics, intra- and postoperative complications, pre-and postoperative voiding evaluation, and the length of hospital stay were retrospectively identified from chart reviews.

Results: The mean neourethral length was 16.8 ± 2.3 cm, and the pars pendulans 11.7 ± 2.2 cm. The neomeatus was localized on top of the neophallus in 12 (75%) patients. No intraoperative complications occurred. Urethral fistula formation occurred in 4 (25%) patients and strictures in 6 (37.5%) patients. In 3 (18.7%) patients a (temporary) perineostomy had to be performed. Voiding from a standing position was possible in 9 (56.3%) patients.

Conclusion: The PLMF for urethral reconstruction, both pars fixa and pars pendulans, in phalloplasty is a feasible surgical technique in transgender men undergoing anterolateral thigh or superficial circumflex iliac artery perforator flap phalloplasty with sufficient labia minora tissue.