Phalloplasty is a complex operation aimed at giving the patient an aesthetic phallus, a normal scrotum, the ability to void while standing, and to perform sexual intercourse, all while protecting erogenous sensation, with minimal morbidity and mortality. Dr. Monstrey reported that he has performed 600-700 phalloplasties.
The most common technique has been to use a free vascularized flap from another bodily site with the artery, vein, and nerves to reconnect at the phalloplasty site. Because the skin is very thin on the inner forearm, it is often used and allows forming an inner tube for the urethra and an outer tube for the penis. The surgery may have to be done in three or four stages for the best results. From pictures that Dr. Monstrey showed, it was obvious that the constructed penises were not absolutely natural in appearance, but he said most patients were “rather happy” with them, despite many of these patients being quite demanding. A scrotum is constructed from transposition of the labia minora.
Unfortunately, voiding while standing is often a problem, with 197 out of 562 patients (35%) having a fistula and urine leakage, but this issue frequently corrects itself. “More difficult to treat are the strictures with stenosis, which can be a problem voiding,” he said (occurring in 78/562). Other complications were 5 complete and 43 partial flap failures, 4 cases of compression syndrome, 58 cases of delayed wound healing, and 15 cases of transient ischemia. Flap failures occurred mainly in smokers, “so we don’t operate on smokers anymore,” he said.
One year after the constructive surgery, a penile prosthesis is implanted for those who want it, allowing sexual intercourse. Most individuals had orgasmic function, not because of reconnected nerves in the flap, but, Dr. Monstrey said he believes, because the clitoris, placed beneath the phallus, is denuded and stimulated during sexual activity. He said the problem is that the prostheses are usually intended for elderly men “who have sex a couple of times a month and who have a normal anatomy.” Young transmen may engage in more sexual activity, “so we have a lot of problems with exposure [of the prosthesis], infection, technical defects, and so on,” he said.
A technique gaining popularity is to use a skin flap from the groin area to make a urethra and one from the thigh to construct a penis. Although a penile transplant has recently been performed for a patient who had lost his penis to cancer, transplants are not being considered at this point, both for surgical technical reasons and because of a need for lifelong immunosuppressive drugs.
Proper referrals and counseling
The World Professional Association for Transgender Health in its Standard of Care guidelines 7 recommends one mental health professional referral for the breast surgery and two such referrals for genital surgery. The issue of possible parenthood should be discussed with patients, along with early counseling about fertility options. The age of majority and consent in different countries is important. Dr. Monstrey said genital surgery may be possible before the age of 18 years if all members of a multidisciplinary team of health professionals agree on a case by case basis that the adolescent can understand the risks, benefits, and alternatives to the surgery with the same degree of competence as someone 18 years of age or older.
Dr. Monstrey reported having no financial disclosures.