The “Sombrero-Shape” Super-Thin Pedicled ALT Flap for Complete Scrotal Reconstruction Following Fournier's Gangrene

Pelvic and Perineal Reconstruction

LEARNING OBJECTIVES

After studying this article, the participant should be able to: 1. Classify types of bony pelvic resections. 2. Outline reconstructive options for pelvic and perineal defects. 3. Identify advantages and drawbacks of various reconstructive techniques. 4. Recognize the functional benefits of bony and soft-tissue reconstruction.

SUMMARY

Defects of the pelvis and perineum arise from tumors, trauma, infection, congenital differences, and gender incongruence. Pelvic resections can result in bony instability and soft-tissue deficiency. The goals of reconstruction are maintenance of spinopelvic continuity, elimination of dead space, resurfacing of cutaneous defects, and prevention of hernias. Perineal reconstruction has important functional considerations. Abdominoperineal resection and pelvic exenteration defects benefit from flap reconstruction to decrease pelvic wound complications. Vulvovaginal reconstruction is performed with flaps from the perineum, thigh, or abdomen. Scrotal and superficial penile defects are most commonly reconstructed with scrotal flaps and skin grafts. Total penile reconstruction most commonly uses a radial forearm free flap.

Pushing boundaries: Anterolateral thigh free flaps for extensive scalp defects beyond previous limits, leveraging imaging modalities with ultrasound and indocyanine green

BACKGROUND

Scalp defect reconstruction poses considerable challenges, with ongoing debates regarding the most effective strategies. While the latissimus dorsi (LD) flap has traditionally been favored, the anterolateral thigh (ALT) flap has been well described as a versatile alternative for addressing extensive scalp defects. This study underscores the success of scalp reconstruction using ALT flaps, notably pushing the boundaries of previously reported flap sizes. Our approach leverages the use of indocyanine green (ICG) perfusion to guide precise preoperative planning and vascular modification, contributing to improved outcomes in challenging cases.

METHODS

We performed 43 ALT flap reconstructions for scalp defects between 2016 and 2023. We collected patients' demographic and clinical data and evaluated flap size and recipient vessels and additional surgical techniques. Detailed preoperative plans with ultrasound and ICG use for intraoperative plans were performed to find perforators location. The cohort was divided into two, with or without complications on flaps, and analyzed depending on its surgical details.

RESULTS

This study involved 38 patients with extensive scalp defects (mean age: 69.4 ± 11 years) who underwent ALT perforator flap transfers (mean flap size: 230.88 ± 145.6 cm2). There was only one case of unsuccessful flap transfer, and four cases had a few complications. The characteristics of the complication group included a large flap size (303.1 ± 170.9 vs. 214.9 ± 136.6 cm2, P = .211), few perforator numbers without pedicle manipulation, lack of intraoperative indocyanine green administration (75% vs. 25%, P = .607), and the use of superficial temporal vessels as recipient vessels.

CONCLUSIONS

Scalp reconstruction using large ALT free flaps with the aid of imaging modalities facilitates the optimization of surgical techniques, such as pedicle manipulation, perforator numbers, and vein considerations, thereby contributing to successful reconstruction.

Crafting Contours: A Comprehensive Guide to Scrotal Reconstruction

This review delves into reconstructive methods for scrotal defects arising from conditions like Fournier's gangrene, cancer, trauma, or hidradenitis suppurativa. The unique anatomy of the scrotum, vital for thermoregulation and spermatogenic function, necessitates reconstruction with thin and pliable tissue. When the scrotal defect area is less than half the scrotal surface area, scrotal advancement flap can be performed. However, for larger defects, some type of transplantation surgery is required. Various options are explored, including testicular transposition, tissue expanders, split-thickness skin grafts, local flaps, and free flaps, each with merits and demerits based on factors like tissue availability, defect size, and patient specifics. Also, physicians should consider how testicular transposition, despite its simplicity, often yields unsatisfactory outcomes and impairs spermatogenesis. This review underscores the individuality of aesthetic standards for scrotal reconstruction, urging surgeons to tailor techniques to patient needs, health, and defect size. Detailed preoperative counseling is crucial to inform patients about outcomes and limitations. Ongoing research focuses on advancing techniques, not only anatomically but also in enhancing post-reconstruction quality of life, emphasizing the commitment to continuous improvement in scrotal reconstruction.

Pedicled anterolateral thigh flap: A versatile flap for complex regional defect reconstruction

Objectives

Soft-tissue defects of the lower abdomen, perineum, groin, and trochanteric area often involve the loss of composite tissue components and are technically challenging to reconstruct. The goals of reconstruction should include the replacement of the defect with a suitable soft-tissue flap that provides stable coverage while protecting important exposed structures. However, there are limited locations in this region for the creation of pedicled flaps for complex defect reconstruction. The pedicled anterolateral thigh (ALT) flap is considered superior to other comparable flaps due to its varying soft-tissue components and long pedicle with consistent anatomy that allow the reconstruction of locations that are difficult to reach without significant flap donor site morbidity. Herein, we present a case series of our experience of using a pedicled ALT flap to reconstruct regional defects over a range of locations.

Methods

The present study comprised ten patients who underwent surgical reconstruction of soft-tissue defects of the lower abdomen, groin, trochanteric, scrotal, and penoscrotal defects using a pedicled ALT flap over a two-year period. The flap was customized according to the defect when required.

Results

In our case series, flap loss was not observed with only a few minor complications. All patients accepted the aesthetic appearance of the flap recipient site area without requesting revision surgery. The donor site was closed primarily in half of all cases, with split skin grafting applied in the remaining patients. Graft take at the flap donor site was satisfactory in all cases.

Conclusion

A pedicled ALT flap is a reliable and suitable option for complex soft-tissue reconstruction for regional soft-tissue defects of the lower abdomen and perineum.

Reconstruction of Acquired Defects of the External Genitalia: A 24-Patient, Single-Institution Experience

PURPOSE

Patients undergoing resection of the external genitalia are often faced with significant deformity and decreased quality of life. Plastic surgeons are tasked with the challenge of reconstructing these defects to minimize morbidity and increase patients' quality of life. The authors have set out to investigate the efficacy of local fasciocutaneous and pedicled perforator flaps in external genital reconstruction.

METHODS

A retrospective review was conducted of all patients undergoing reconstruction of acquired defects of the external genitalia from 2017 to 2021. In total, 24 patients met inclusion criteria for the study. Patients were allocated into 2 cohorts: patients with defects reconstructed using local fasciocutaneous flaps (FF) versus patients with defects reconstructed using pedicled islandized perforator flaps (PF). Comorbid conditions, ablative procedures, operative times, flap size, and complications were compared across all groups. Fisher exact test was used to analyze differences in comorbidities, while independent t tests were used to analyze age, body mass index, operative time, and flap size. Significance was set at P < 0.05.

RESULTS

Of the 24 patients included in the study, 6 underwent reconstruction with islandized PFs (either profunda artery perforator or anterolateral thigh), and 18 underwent reconstruction with FFs. The most common indication for reconstruction was vulvectomy for vulvar cancer, followed by radical debridement for infection, and lastly penectomy for penile cancer. The PF cohort had a significantly higher percentage of previously irradiated patients (50% vs 11.1%, P = 0.019). Although mean flap size was larger in the PF cohort, this difference did not reach statistical significance (176 vs 143.4 cm2, P = 0.5). Perforator flaps had significantly longer operative times when compared with FFs (237.33 vs 128.99 minutes, P = 0.003). Average length of stay was 6.88 days in FF and 5.33 days in PF (P = 0.624). Complication profile including flap necrosis, wound healing delays, and infection were similar between groups despite a significantly higher rate of prior radiation in the PF cohort.

CONCLUSIONS

Our data suggest that PFs such as profunda artery perforator and anterolateral thigh flaps are associated with longer operative times but may offer a suitable option for reconstruction of acquired defects of the external genital compared with local FFs, especially in the setting of prior radiation.