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- W4366124611 abstract "Purpose Gender affirmation in trans men requires multiple staged procedures. The final masculinizing step involves phalloplasty or metoidioplasty and further incorporation of penile and testicular prostheses. However, these are functionally suboptimal and associated with high complication rates. Therefore, we sought to investigate the anatomical feasibility of one-stage genitourinary vascularized composite allotransplantation (GUVCA) for such gender-affirming surgeries. Methods Twenty fresh cadaveric dissections were performed to delineate the neurovascular anatomy of the proposed GUVCA. Specifically, in donors (n = 14), besides the penis and scrotum, the GUVCA included an inferior bladder patch with the urinary sphincter, prostate, seminal vesicles, as well as a strip of the pubic bone. In trans men recipients, osteotomies of the pubic bone to match that of the donor GUVCA were required. Five cadaveric GUVCA transplants were then performed to simulate one-stage gender affirmation surgery. Results The GUVCA required (1) vascular anastomoses between the recipient's deep inferior epigastric, external pudendal, and superficial circumflex iliac (or superficial inferior epigastric) vessels to the donor's internal pudendal, external pudendal and genitofemoral vessels respectively; (2) neurosynthesis between the recipient pudendal and dorsal clitoral nerves to the donor pudendal and genitofemoral nerves; and (3) urinary bladder anastomosis at the bladder neck, upstream of the urinary sphincter. Average donor measurements (length (cm), diameter (mm)) were: external pudendal artery (2.5, 2.0) and vein (2.0, 3.5), internal pudendal artery (15.0, 4.0), pudendal (15.0, 3.0) and genitofemoral nerves (8.0, 2.0). Conclusions We have described the anatomical basis for a one-stage GUVCA in trans masculine genitourinary reconstruction." @default.
- W4366124611 created "2023-04-19" @default.
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- W4366124611 date "2023-08-01" @default.
- W4366124611 modified "2023-09-30" @default.
- W4366124611 title "Genitourinary vascularized composite allotransplantation for gender affirmation in trans men: An anatomical feasibility study" @default.
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- W4366124611 doi "https://doi.org/10.1016/j.bjps.2023.04.002" @default.
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