Introduction
Some transgender men express the wish to undergo genital gender-affirming surgery. Metoidioplasty and phalloplasty are procedures that are performed to construct a neophallus. Genital gender-affirming surgery contributes to physical well-being, but dissatisfaction with the surgical results may occur. Disadvantages of metoidioplasty are the relatively small neophallus, the inability to have penetrative sex, and often difficulty with voiding while standing. Therefore, some transgender men opt to undergo a secondary phalloplasty after metoidioplasty. Literature on secondary phalloplasty is scarce.
Aim
Explore the reasons for secondary phalloplasty, describe the surgical techniques, and report on the clinical outcomes.
Methods
Transgender men who underwent secondary phalloplasty after metoidioplasty were retrospectively identified in 8 gender surgery clinics (Amsterdam, Belgrade, Bordeaux, Austin, Ghent, Helsinki, Miami, and Montreal). Preoperative consultation, patient motivation for secondary phalloplasty, surgical technique, perioperative characteristics, complications, and clinical outcomes were recorded.
Main Outcome Measure
The main outcome measures were surgical techniques, patient motivation, and outcomes of secondary phalloplasty after metoidioplasty in transgender men.
Results
Eighty-three patients were identified. The median follow-up was 7.5 years (range 0.8–39). Indicated reasons to undergo secondary phalloplasty were to have a larger phallus (n = 32; 38.6%), to be able to have penetrative sexual intercourse (n = 25; 30.1%), have had metoidioplasty performed as a first step toward phalloplasty (n = 17; 20.5%), and to void while standing (n = 15; 18.1%). Each center had preferential techniques for phalloplasty. A wide variety of surgical techniques were used to perform secondary phalloplasty. Intraoperative complications (revision of microvascular anastomosis) occurred in 3 patients (5.5%) undergoing free flap phalloplasty. Total flap failure occurred in 1 patient (1.2%). Urethral fistulas occurred in 23 patients (30.3%) and strictures in 27 patients (35.6%).
Clinical Implications
A secondary phalloplasty is a suitable option for patients who previously underwent metoidioplasty.
Strengths & Limitations
This is the first study to report on secondary phalloplasty in collaboration with 8 specialized gender clinics. The main limitation was the retrospective design.
Conclusion
In high-volume centers specialized in gender affirming surgery, a secondary phalloplasty in transgender men can be performed after metoidioplasty with complication rates similar to primary phalloplasty.
Perineogenital and pelvic surgery is challenging due to the complex anatomy and physiology, multi-organ involvement and microbial environment of this region. In reconstructive surgery local and pedicled flaps are usually applicable. Microvascular flaps are rarely needed. Positioning of the scars, tension in the wound edges and pressure conditions must be taken into account, because failed correction may create more functional and aesthetic problems as the defect itself. This brief review focuses on the reconstructive methods of perineum, genitals and pelvic floor, site by site, with special emphasis on functional details.
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