Pre-expanded Anterolateral Thigh Perforator Flap for Phalloplasty

[Choice of flaps for phalloplasty: what is the contemporary standard? Consensus Statement of the German-Speaking Society for Microsurgery of Peripheral Nerves and Vessels]

The ever-expanding number of transmen as well as their surgeons share an increasing interest in the construction of a neophallus. While the indication for surgery and the positive effect of a phalloplasty on the quality of life, mental health and sexual function has already been thoroughly analysed, there is a lack of data comparing and evaluating the surgical steps. During the consensus conference on the "choice of flaps for phalloplasty" at the annual meeting of the German-Speaking Society for Microsurgery of Peripheral Nerves and Vessels, the current literature was discussed and a consensus on the surgical technique of a phalloplasty was reached. This manuscript publishes jointly developed recommendations on the following topics: choice of flaps for phalloplasty, preoperative diagnostic tests before phalloplasty, urethral construction in the radial forearm flap and anterior lateral thigh flap, preformation of the urethra at the forearm or thigh, venous drainage of the radial forearm flap, innervation of the phallus, staged phalloplasty, coronaplasty and managing the donor site of a radial forearm flap.

Extensive Defect Reconstruction With Pre-expanded Anterolateral Thigh Flap: Tissue Expansion of the "Outskirts"

BACKGROUND

Previously reported pre-expansion techniques of the anterolateral thigh flap are mainly perforator-based. The expansion will interfere with the flap harvest if the requisite perforator is found unsuitable as a pedicle. Expansion of the peripheral territories of the flap donor site can minimize the interference from the expansion.

METHODS

Forty-eight peripheral pre-expansions of the anterolateral thigh flap were retrospectively reviewed in 38 patients from 2012 to 2021. The reconstructive outcomes, including flap success, increase in flap size, donor-site closure, and complications, were assessed. In addition, subgroup analysis was performed based on the expanded territories.

RESULTS

Rate of successful flap elevation of 100% and flap survival rate of 97.9% were achieved. One patient had total flap necrosis, which was salvaged with skin grafting. Peripheral expansion attained a mean 55.5% ± 19.6% increase in flap width. Primary donor-site closure was accomplished in 95.8% of flaps and fascial restoration in 97.9% of the donor sites. Three patients developed major expansion-related complications, which required surgical intervention. One patient had wound dehiscence in the donor site, which healed by secondary intention. Compared with other subgroups, the lateral-and-medial-side expansion provided a larger flap for reconstruction (P = 0.001).

CONCLUSIONS

If time is not of the essence, peripheral pre-expansion permits direct donor-site closure with size augment of the anterolateral thigh flap. In addition, it preserves the reliability and versatility of the anterolateral thigh flap.

Total Urethra and Penile Shaft Reconstruction with Combined Pedicled Anterolateral Thigh Flap and Radial Forearm Free Flap after Total Penectomy

Total reconstruction of the penis (TPR) represents a challenge for urologists and plastic surgeons, especially when urethral length is severely reduced. We here describe, for the first time in an oncologic scenario, a double flap phalloplasty using a pedicled anterolateral thigh (ALT) flap for penile reconstruction and a radial forearm free flap (RFFF) for complete neourethra and glans reconstruction following penile amputation. A 48-year-old patient came to our department following a total penectomy with inferior urethral derivation. The indication for a double flap phalloplasty was posed as only way to fully reconstruct the urethra on its length avoiding possible complications of single flap reconstruction using tube-into-tube technique. Both flaps healed uneventfully with no neourethral strictures or fistulas described. At 18 months follow-up, the patient was extremely satisfied with the aesthetic result and was able to void in standing position. We think that a double free tissue transfer for TPR should be considered, particularly when a urethral length > 14 cm needs to be reconstructed. While the pedicled ALT can be used to reconstruct a proper penile shaft with an easily concealed scar, the RFFF can provide adequate neourethra length with satisfactory sensory recovery at the neoglans.

An Option for Shaft-Only Gender-Affirming Phalloplasty: Vaginal Preservation and Vulvoscrotoplasty. A Technical Description

SUMMARY

Genital masculinizing gender-affirming surgery is a growing field. Because of a spectrum of gender identity, gender expression, sexual expression, patient desires, and patient tolerance for complications, options for surgery vary accordingly. Shaft-only phalloplasty avoids urethral lengthening, but may still be accompanied by hysterectomy, vaginectomy, scrotoplasty, clitoroplasty (burying of the clitoris), glansplasty, and placement of erectile devices and testicular implants. Patients who desire retention of vaginal canal patency are candidates for vaginal preservation vulvoscrotoplasty; however, there is a paucity of literature describing the procedure and its outcomes. In this article, the authors review the technique used by the senior author at Oregon Health and Science University and report surgical outcomes for four patients. Future studies regarding patient-recorded outcome measures, aesthetics, sexual function, urologic function, patient satisfaction, and conversion to other options will help surgeons better understand patients pursuing gender-affirming surgery through shaft-only phalloplasty.

Systematic Review of Tissue Expansion: Utilization in Non-breast Applications

Background

Tissue expansion is a versatile reconstructive technique providing well-vascularized local tissue. The current literature focuses largely on tissue expansion for breast reconstruction and in the context of burn and pediatric skin/soft tissue replacement; however, less traditional applications are also prevalent. The aim of this study was to systematically review the utilization of tissue expansion in such less well-characterized circumstances.

Methods

The authors conducted a systematic review of all publications describing non-breast applications of tissue expansion. Variables regarding expander specifications, expansion process, and complications were collected and further analyzed.

Results

A total of 565 publications were identified. Of these, 166 publications described tissue expansion for "less traditional" indications, which fell into 5 categories: ear reconstruction, cranioplasty, abdominal wall reconstruction, orthopedic procedures, and genital (penile/scrotal and vaginal/vulva) reconstruction. While lower extremity expansion is known to have high complication rates, tissue expander failure, infection, and exposure rates were in fact highest for penile/scrotal (failure: 18.5%; infection: 15.5%; exposure: 12.5%) and vaginal/vulva (failure: 20.6%; infection: 10.3%; exposure: 6.9%) reconstruction.

Conclusions

Tissue expansion enables index operations by providing additional skin before definitive reconstruction. Tissue expanders are a valuable option along the reconstructive ladder because they obviate the need for free tissue transfer. Although tissue expansion comes with inherent risk, aggregate outcome failures of the final reconstruction are similar to published rates of complications without pre-expansion. Thus, although tissue expansion requires a staged approach, it remains a valuable option in facilitating a variety of reconstructive procedures.

Reconstruction of burn contractures of the anterior neck with pre-expanded free anterolateral thigh flaps

Burn contractures of the anterior neck result in severe functional and aesthetic deformities. The release of wide contractures leads to defects that cannot be closed with local flaps. In these cases, tissue expansion of local tissues may be a solution. However, when local tissues are also burned or inadequate, microsurgical free tissue transfer may be necessary. In order to increase the surface are of the transferred flap, pre-expansion of the donor site can be combined with the procedure. Five patients with burn contractures of the anterior neck were treated using pre-expanded free anterolateral thigh (ALT) perforator flaps. The anterolateral thigh was dissected on top of the fascia lata in an avascular plane. The borders of the dissection were kept 2 cm lateral to the pre-identified perforators. A 1000cc rectangular tissue expander was placed. The time of expansion ranged from 4-11 months with a final over expanded volume of 1200cc. The defect sizes ranged from 10 × 21 cm to 20 × 27 cm. There were either one or two perforators included in the flaps. All flaps survived completely with good functional and aesthetic outcomes. Donor areas were closed primarily in one patient and with various amounts of skin grafts in five patients. Overall, pre-expansion decreased the amount of total skin grafted area in the donor site. Pre-expanded ALT perforator flap can be a good option in extensive burns with wide contractures where the regional donor areas are also affected. This technique has several advantages: 1) large flaps can be safely harvested, 2) the expanded skin thins out making it more aesthetically appropriate to resurface superficial defects, 3) expansion period of the thigh is well tolerated by the patients, 4) two teams can work simultaneously, decreasing the operating time, 5) the donor area can be closed either primarily or with minimal skin graft application, and 6) there is no functional loss in the donor area and the donor scar stays under the clothes.

Preexpansion in Phalloplasty Patients: Is It Effective?

BACKGROUND

Phalloplasty is performed as genital gender-affirming surgery in transmasculine persons. It requires the harvest of sizeable autologous fasciocutaneous flaps, which is associated with donor-site morbidity and extensive scarring. Flap preexpansion has been used to facilitate wound closure and reduce scarring, but the efficacy of flap preexpansion in phalloplasty is unclear. The objective of this study was to assess the safety and effectiveness of preexpansion before phalloplasty.

METHODS

Transmasculine persons who underwent phalloplasty between December 2006 and July 2014 at our institution were identified and invited to participate. A chart review was performed to obtain patient demographics and expander-related complications. Outcomes regarding the donor-site scar (Patient Observer Scar Assessment Scale, scar size, patient satisfaction) were measured at the outpatient clinic and compared between transmasculine persons treated with and transmasculine persons treated without preexpansion.

RESULTS

Of 33 transmasculine persons who underwent phalloplasty, 17 underwent preexpansion. Phalloplasty techniques included the use of the radial forearm free flap, the anterolateral thigh flap, or a combination of both. In total, 34 tissue expanders were placed in the forearm (n = 12) and/or thigh (n = 22). Complications occurred in 18 (52.9%) of 34 tissue expanders and in 13 (76.5%) of 17 transmasculine persons. Seven reoperations were performed because of extrusion (n = 2), infection (n = 2), port failure (n = 2), or leakage (n = 1). Sixteen transmasculine persons visited our clinic for scar assessment (8 with and 8 without preexpansion). Primary closure was achieved in 4 (31%) of 13 expanded donor sites. Relative scar size was reduced when the wound could be closed primarily, but overall scar size, quality, and satisfaction did not differ significantly between groups.

CONCLUSION

Donor-site expansion before phalloplasty was associated with high rates of expander-related complications and expander failure. Primary closure of the donor site was achieved in less than a third of the cases. Primary closure may potentially lead to smaller scars and greater satisfaction; however, we concluded that the potential advantages of preexpansion do not outweigh the high risk of complications and lack of success.

Total aesthetic subunit reconstruction of the burned anterior abdomen using pre-expanded pedicled anterolateral thigh flap-A case report

Combination of tissue expansion and perforator flaps broadened the reconstructive options in burn cases with wide scar contractures. We report a case of total aesthetic subunit reconstruction of the anterior abdominal skin using a pre-expanded pedicled anterolateral thigh (ALT) perforator flap in a patient with postburn contractures. Seventeen-year-old girl had a history of scalding burn to the anterior abdomen, resulting in tight contractures inhibiting her mobility. After an expansion period of 6 months, the flap of 27 × 30 cm was elevated at the suprafascial plane and tunneled to the anterior abdomen. The flap was used to resurface the defect from xyphoid process down to the mons pubis and bilaterally at linea semilunaris. Postoperative course was uneventful. A good quality aesthetic and functional reconstruction was achieved at the 10-year follow-up. Pre-expanded pedicled ALT flaps may be considered as an option in extensive scarring requiring large amounts of tissue.

Das Radialispenoid mit präformierter Harnröhre – Eine Analyse der Komplikationen anhand der Clavien-Dindo Klassifikation

Das Radialispenoid hat sich im Rahmen der geschlechtsangleichenden Operationen (gaOP) Frau zu Mann (FzM) etabliert. Neben den Verfahren nach Chang und Gottlieb gibt es jedoch für die Variante mit präformierter Harnröhre ein Erfahrungsdefizit. Diese Arbeit soll die Komplikationen der verschiedenen Operationsteilschritte aufführen und anhand der Clavien-Dindo Klassifikation einteilen.

Patienten und Methoden Eingeschlossen wurden alle Patienten, die vom 01.01.2011 bis 30.06.2017 eine Radialislappenplastik mit präformierter Harnröhre im Rahmen der gaOP in unserer Klinik erhalten haben. Es konnten 39 Patienten in diese retrospektive Studie eingeschlossen werden. Erfasst wurden die Komplikationen der Kolpektomie, der Harnröhrenpräformierung, der Penoidkonstruktion, der Hodenprothesenimplantation und der Glansplastik. Der Nachbeobachtungszeitraum vom Datum des Penoidaufbaus betrug zwischen 6 und 80 Monaten, im Durchschnitt 32 Monate. Die Komplikationen wurden nach Clavien Dindo eingeteilt.

Ergebnisse Die Penoidkonstruktion verlief bei 5 von 39 Patienten (12,8 %) ohne Komplikation. Bei 22 Patienten (56,4 %) kam es zu einer Grad I Komplikation. Bei vier Patienten (10,3 %) kam es zu einer Grad II Komplikation. Bei 16 Patienten (41,0 %) trat eine Komplikation Grad IIIb auf. Ein Patient erlitt eine Grad IV Komplikation (2,6 %).

28 der 39 Patienten (71,8 %) hatten postoperativ eine Fistel. Jedoch mussten diese Fisteln nur bei acht der 28 Patienten chirurgisch verschlossen werden (20,5 % des Gesamtkollektivs). Bei 5 Patienten kam es zu einer Stenose (12,8 %), bei zwei Patienten mehrfach (insgesamt 8 Stenosen). Unter den 16 Patienten mit einer drittgradigen Komplikation kam es bei zwei Patienten (5,1 %) zu einem Lappenverlust.

Schlussfolgerung Das Radialispenoid mit präformierter Harnröhre stellt mittlerweile ein etabliertes Verfahren zur Penoidkonstruktion bei FzM-Transidenten Patienten dar. Im Rahmen unserer Lernkurve und aufgrund einer technischen Modifikation mit einer Visierlappenplastik i. B. der Harnröhrenanastomose konnte die Quote der urologischen Komplikationen im Hinblick auf die Fisteln deutlich gesenkt werden. Die vorliegende große Serie liefert eine Datenbasis an klassifizierten Komplikationen nach Clavien-Dindo für zukünftige Vergleiche zu neuen Techniken oder Innovationen bekannter Verfahren.

Overview of surgical techniques in gender-affirming genital surgery

Gender related genitourinary surgeries are vitally important in the management of gender dysphoria. Vaginoplasty, metoidioplasty, phalloplasty and their associated surgeries help patients achieve their main goal of aligning their body and mind. These surgeries warrant careful adherence to reconstructive surgical principles as many patients can require corrective surgeries from complications that arise. Peri-operative assessment, the surgical techniques employed for vaginoplasty, phalloplasty, metoidioplasty, and their associated procedures are described. The general reconstructive principles for managing complications including urethroplasty to correct urethral bulging, vaginl stenosis, clitoroplasty and labiaplasty after primary vaginoplasty, and urethroplasty for strictures and fistulas, neophallus and neoscrotal reconstruction after phalloplasty are outlined as well.

Urethral Reconstruction in Anterolateral Thigh Flap Phalloplasty: A 93-Case Experience

BACKGROUND

Urethral reconstruction in anterolateral thigh flap phalloplasty cannot always be accomplished with one flap, and the ideal technique has not been established yet. In this article, the authors' experience with urethral reconstruction in 93 anterolateral thigh flap phalloplasties is reported.

METHODS

Ninety-three anterolateral thigh phalloplasties performed over 13 years at a single center were retrospectively reviewed to evaluate outcomes of the different urethral reconstruction techniques used: anterolateral thigh alone without urethral reconstruction (n = 7), tube-in-tube anterolateral thigh flap (n = 5), prelaminated anterolateral thigh flap with a skin graft (n = 8), anterolateral thigh flap combined with a free radial forearm flap (n = 29), anterolateral thigh flap combined with a pedicled superficial circumflex iliac artery perforator flap (n = 38), and anterolateral thigh flap combined with a skin flap from a previous phalloplasty (n = 6). Seventy-nine phalloplasties were performed for female-to-male sex reassignment surgery. The others were performed in male patients with severe penile insufficiency.

RESULTS

Urethral complication rates (fistulas and strictures) were as follows: tube-in-tube anterolateral thigh flap, 20 percent; prelaminated anterolateral thigh flap, 87.5 percent; free radial forearm flap urethra, 37.9 percent; superficial circumflex iliac artery perforator urethral reconstruction, 26.3 percent; and skin flap from previous phalloplasty, 16.7 percent.

CONCLUSIONS

When tube-in-tube urethra reconstruction is not possible (94.2 percent of cases), a skin flap such as the superficial circumflex iliac artery perforator flap or the radial forearm flap is used for urethral reconstruction in anterolateral thigh phalloplasties. Flap prelamination is a second choice that gives high stricture rates. If a penis is present, its skin should be used for urethral reconstruction and covered with an anterolateral thigh flap. With these techniques, 91.86 percent of patients are eventually able to void while standing.

CLINICAL QUESTION/LEVEL OF EVIDENCE

Therapeutic, IV.

Flap Combination Phalloplasty in Female-to-Male Transsexuals

BACKGROUND

Although phalloplasty with a free radial forearm (RF) flap is the gold standard for sex reassignment surgery in female-to-male transsexuals, it can result in unsightly scars, lymphedema, and numbness of the hand.

AIM

To introduce the concept of flap combination phalloplasty and its clinical application.

METHODS

This is a retrospective chart review study of patients undergoing phalloplasty using various multiple flaps. Demographic data, surgical data, and outcomes were recorded.

OUTCOMES

Of the 15 cases, 5 were urethral fistulas; 4 were venous thrombosis; 2 were urethral calculus; and 1 was a partial flap loss.

RESULTS

15 patients were included (age range 25-43 years, median 34 years). An RF flap and a deep inferior epigastric artery perforator flap combination were most frequently used. The median operative time for flap combination phalloplasty was 10.5 hours (range 6.5-12.5 hours). There was no total flap necrosis, but there was 1 case of partial flap loss. There were urethral fistulas in 5, venous thrombosis in 4, and urethral calculus in 2 cases.

CLINICAL IMPLICATIONS

Flap combination phalloplasty will become the third option when both the RF flap and the anterolateral thigh pedicle flap are not useful.

STRENGTH & LIMITATIONS

Flap combination phalloplasty is a complex operative procedure with a prolonged operative time, but it can provide more flap selection and reduce the morbidity at each donor site. Choosing from many different options can be beneficial to patients.

CONCLUSION

Flap combination phalloplasty has a similar complication rate to other procedures and has advantages in terms of flexibility and less donor site morbidity; it may thus be an option when either the RF flap or the anterolateral thigh pedicle flap cannot be used. Namba Y, Watanabe T, Kimata Y. Flap Combination Phalloplasty in Female-to-Male Transsexuals. J Sex Med 2019;16:934-941.

Masculinizing Genital Gender Confirmation Surgery

INTRODUCTION

This article is the third in a 3-part series focused on the comprehensive treatment of gender dysphoria. Multidisciplinary gender dysphoria care may involve a combination of counseling, social gender transition, hormone therapy, and gender confirmation surgery (GCS) to maximize physical characteristics congruent with a patient's gender identity. Nonoperative management of gender dysphoria was covered in part 1. The focus of part 2 was feminizing GCS. In part 3, surgical considerations for masculinizing GCS are summarized, including a review of different phalloplasty techniques. This installment also includes information about adjunctive procedures, therapies, and products used by transgender men and women to express their gender identity.

AIM

To provide an overview of both genital and nongenital masculinizing gender confirmation procedures. To review phalloplasty techniques, preoperative considerations, complications, and outcomes. To summarize ancillary services and procedures available to transgender patients to facilitate their gender presentation.

METHODS

A review of relevant literature through May 2017 was performed via PubMed.

MAIN OUTCOME MEASURES

To summarize ancillary products and services used by transgender patients and to review surgical considerations for masculinizing genitoplasty.

RESULTS

A variety of nonsurgical ancillary services exist for transgender patients to aid their transition. A variety of phalloplasty procedures have been developed for transgender men who seek genital GCS. Most surgeons prefer radial forearm phalloplasty, including the authors whose surgical technique is described. Each phalloplasty approach is associated with its own benefits, drawbacks, and complications.

CONCLUSION

A variety of ancillary services and procedures that help transgender men and women communicate their gender identity in society is available and is an important adjunct to medical or surgical treatment of gender dysphoria. Pre-operative, intra-operative, and post-operative considerations of masculinizing genital gender confirmation procedures were reviewed. Hadj-Moussa M, Agarwal S, Ohl DA, et al. Masculinizing Genital Gender Confirmation Surgery. Sex Med Rev 2019;7:141-155.

The Pedicled Anterolateral Thigh Phalloplasty

The anterolateral thigh (ALT) flap is a viable and reliable option for phalloplasty. The primary advantages of the ALT flap remain an inconspicuous donor site and flexibility in phallus length. The disadvantages of the ALT flap are a higher incidence of both flap and urethral complications compared with a radial forearm phalloplasty. Although the ALT phalloplasty can achieve the primary goals of standing micturition, penetrative intercourse, and an aesthetic phallus, multiple stages and revisions are often necessary. Careful patient selection is paramount in attaining acceptable results with the ALT phalloplasty technique.

Anatomy of the pedicled anterolateral thigh flap for phalloplasty in transitioning-males

Incidence of transexualism and request for neophalloplasty is increasing yielding a current prevalence of trans-male in the USA of 1:2500. Surgeons have explored various techniques to improve desirable outcomes of neophallic construction, decrease the length of surgery, and minimize stigmatizing scars. The anterolateral thigh (ALT) flap is an alternative to the traditional radial forearm flap for patients who do not want a forearm scar. Surgical text descriptions were enhanced by the creation of new anatomic illustrations. Anatomy of the donor and recipient sites as well as the surgical technique leading to creation of the neophallus are demonstrated in detail with new relevant illustrations. The ALT flap is a skin, fat and fascia flap that is usually supplied by the descending branch of the lateral circumflex femoral vessels and the lateral femoral cutaneous nerve. However, variability in neurovascular supply does exist with important clinical implications. In the pedicled surgical procedure, neurovascular supply is left partly attached to the donor site ("pedicle") and simply transposed to the perineum, keeping the pedicle intact as a conduit to supply the tissue with blood and innervation. ALT flap offers clinical advantages of less obvious donor site concealable with clothing, decreased surgical time, preservation of erogenous sensation and vascular supply of the flap without microsurgical anastomosis of nerves and vessels, and good potential for urethroplasty. This surgery may be difficult in patients with thicker skin and more subcutaneous thigh fat. Clin. Anat, 2017. © 2017 Wiley Periodicals, Inc. © 2017 Wiley Periodicals, Inc.

[Phalloplasty: Microsurgical options and management algorithm]

The free radial forearm flap is considered as the gold standard in penile reconstruction for good functional and aesthetic results. The scar on donor site could be considered as pathognomonic of their situation by transsexual patients. The development of microsurgical flaps provides new therapeutic options. This options are discussed and a therapeutic algorithm is presented. The main techniques used are the pedicled anterolateral thigh perforator flap and free muscle sparing latissimus dorsi flap. Principal criteria are listed, the choice of patient and the local anatomical conditions are the most important. Antebrachial flap stay the first choice. In case of non-feasibility of this flap, phalloplasty with pedicle ALT flap or free MSLD flap will be proposed. Urethral reconstruction will be done by a narrow free forearm flap or by a delayed thin skin graft or buccal mucosa graft. Microsurgical phalloplasty options are not limited to the forearm flap. Satisfactory results can be obtained using alternative procedure. The use of a therapeutic algorithm allows to choose the most optimal solution for each patient.