Combination of four pedicled flaps for multilayer reconstruction of massive pelvic defect: A case report

Tumors affecting the perineal region are a subtle and difficult to diagnose type of malignancy. In particular, soft tissue sarcomas (STS) may be already very large at time of diagnosis, thus impairing a normal life. In such severe cases, debulking surgery is the only possibility to offer the patient an acceptable quality of life again. These procedures inevitably result in massive defects. Depending on the affected area, there are different reconstructive options available so far, and sometimes a combination of multiple flaps is required. With the present report, we would like to share our experience with a complex genital and perineal defect. A 75-year-old patient presenting a massive epithelioid sarcoma in the ischio-rectal and anal fossae underwent a surgical excision with safe margins, which included the resection of the external genitalia, the pubis, and the rectum. The end result of this procedure was a massive defect measuring 31 cm (length) × 8 cm (width) × 6 cm (depth). To accomplish the requirements of this particular case we planned to utilize mostly the nearby tissues. The reconstruction was performed layer by layer. We resorted to a pedicled chimeric anterolateral thigh (ALT) flap measuring 8 cm × 6 cm, with a large amount of the vastus lateralis (20 cm × 8 cm) to fill the deeper defect, and a duplicated fascia lata (20 cm × 6 cm) to restore the abdominal support of the pubis. Then the external coverage was completed combining a pedicled superficial circumflex (SCIP) flap measuring 9 cm × 8 cm, a pedicled gracilis flap measuring 27 cm × 4 cm and a pedicled posteromedial thigh (PMT) flap measuring 22 cm × 8 cm harvested in vertical fashion. The postoperative course was uneventful, and at 6 months follow up the reconstructive result was successful with a stable soft tissue coverage and no complaints from the patient. With the present case report, we would like to show the importance of mastering different reconstructive procedures, whose combination might be the only solution to cover very large and complex defects.

Soft tissue reconstruction of complex infra-inguinal wounds following revisionary vascular surgery

INTRODUCTION

Large, full thickness infra-inguinal wounds following revision revascularization procedures of the lower extremity are a challenging complication for reconstructive surgery. Frequently, these patients present with various comorbidities and after several previous reconstructive attempts and therefore no straightforward soft tissue reconstruction is likely.

METHODS

Patients who presented with large, complex inguinal wounds for soft tissue reconstruction were analyzed retrospectively in terms of flap choice, outcome and complication rates. A focus was set on the reconstructive technique and a subgroup analysis was assessed.

RESULTS

19 patients (11 men, 8 women) who received 19 flaps (17 pedicled, two free flaps) were included in this retrospective study. Average patient age was 73.3 years (range: 53-88 years). 10 fascio-cutaneous flaps (ALT, 52.6%) and 9 muscle flaps (47.4%) were applied. Among muscle flaps, 3 pedicled gracilis flaps, 4 pedicled rectus abdominis flaps and two free latissimus dorsi flaps were used. No flap losses were observed except one case of limited distal flap necrosis (gracilis group). Body Mass Index (BMI) ranged from 19 to 37, mean 26.8. Mean surgery time in all patients was 165.9 minutes (range: 105-373 minutes). Revision surgery due to local wound healing problems averaged 1.6 in all patients. In all cases sufficient soft tissue reconstruction was achieved and bypasses were preserved. Lengths of stay averaged 27.2 (14 to 59 days). Mortality was considerably (10.5%) due to systemic complications (One patient died due to a heart attack 4 weeks postoperatively, another patient died due to an extensive pulmonary embolism two weeks postoperatively).

CONCLUSION

Soft tissue reconstruction of complex inguinal wounds after revision vascular surgery is challenging and wound-healing problems are expectable. In addition to the rectus abdominis flap the pedicled ALT flap is feasible in a broad variety of medium to large wounds. Free flap reconstruction is recommended for very large defects. A structured interdisciplinary approach is required for the management of complex wounds after vascular surgery to prevent and to deal with complications and perioperative morbidity.

[Coverage of an infected Deep femoral arteria vascular graft bypass by pediculated chimeric antero- lateral thigh flap associated with a vastus lateral muscle]

Scarpa triangle defects with exposure of femoral bypass are challenging to treat. The authors present the case of a 46 years-old male with a groin defect of 10×18cm with an exposure on 5cm of an allograft of the deep femoral artery. Bypass was performed in emergency because of a limb ischemia with deep femoral artery thrombosis and aneurysm of the superficial femoral artery. The reconstructive surgery may propose a large musculo-cutaneous flap to fill the dead spaces surrounding the infected bypass, the flap should be vascularized by the deep femoral arteria, could not be the rectus abdominals flap because of the precedent abdominal incision. The homolateral pediculated ALT-flap with vastus lateral component appeared to be a good solution because of its versatility and the low morbidity of the donor site.

Application of the Jigsaw Puzzle Flap Based on Freestyle Perforators to Repair Large and Deep Ulcers on the Buttocks

Background

Decubitus ulcers are common skin injuries in plastic and burn surgery departments, usually occur in patients with a long disease course and poor underlying health. Designing a reconstruction procedure with safety blood supply to a large volume soft tissue and resulting in minimal trauma is a priority for surgeons.

Methods

The free-style perforators on the potential donor sites surrounding the ulcers were detected by Doppler, and the area of the ulcer was divided into several sections based on the location of pre-design perforator flaps. According to the insertion point of the perforators, small V-Y advancement flaps, propeller flaps and rotation flaps pedicled with freestyle perforators were formed and moderately modified during surgery. All of the small flaps were transplanted from donor sites to the defect and reassembled into a new composite flap to repair the ulcer. The donor sites were directly closed. The area of the flaps ranged from 7.0 × 10.5 cm to 8.0 × 22.0 cm and the diameter of the pedicle perforators ranged from 0.5 to 4.0 mm.

Results

In 30 patients, 65 flaps were constructed, and all of the flaps survived with direct closure of all donor sites. One case with effusion healed 1 month postoperatively through draining and application of a mild pressure dressing. After a 3–24 months follow-up period, all of the patients were satisfied with post-operative function and appearance, and only one case had a local recurrence 6 months postoperatively.

Conclusion

The jigsaw puzzle flap based on freestyle perforators can repair the large skin and soft tissue defects caused by decubitus ulcers on the buttocks, with direct donor flap area closure. This method is easy to perform with a safe blood supply and minimal trauma resulting from the avoidance of microvascular anastomosis and the conventional myocutaneous flap.

Soft Tissue Defect Reconstruction and Lymphatic Complications Prevention: The Lymphatic Flow-Through (LyFT) Concept

Background and Objectives: When a lymphatic-rich area is severely damaged, either after trauma or a surgical procedure, both soft tissue defect reconstruction and lymphatic drainage restoration are necessary. In this setting, we aim to show the potential of the lymphatic flow-through flap (LyFT) concept, which might be an attractive new solution to reduce postoperative lymphatic complications. Materials and Methods: Between 2018 and 2021, 12 patients presenting a soft tissue defect involving damage to the lymphatic drainage pathway received a lymphatic flow-through flap for volume and lymphatic drainage restoration. Different flaps were employed: 3 pedicled superficial circumflex iliac artery perforator (SCIP) flaps, 2 free SCIP flaps, 3 pedicled deep inferior epigastric perforator (DIEP) flaps, 2 pedicled vertical posteromedial thigh (vPMT) flaps, and 2 pedicled anterolateral thigh (ALT) flaps. A range of 1 to 3 lymphovenous anastomosis (LVA) with flap’s veins was performed (mean 1.9). For a better dead space obliteration, an additional vastus lateralis muscle flap was performed in one case. Indocyanine green (ICG) lymphography was used in all cases to identify the lymphatic pathway, make the preoperative markings, and check the patency of the anastomoses. Results: In all cases, the reconstructive results were satisfactory from both the functional and aesthetic points of view. No secondary surgeries were required, and only one minor complication was encountered: an infected seroma that was managed conservatively. The mean follow-up was 9.9 months (range 6–14 months). Conclusions: Lymphatic flow-through flaps seem to effectively reduce the risk of lymphatic complications after the reconstruction of soft tissue defects with a compromised lymph pathway. This is a versatile solution that might be used in different body regions resorting to different flap types.

The use of pedicled chimeric superficial circumflex iliac artery perforator (SCIP) flap as lymphatic interpositional flap for deep thigh defect reconstruction: A case report

The tumors affecting the thigh region are complex to manage, requiring a patient-tailored and multidisciplinary approach. Because of their aggressiveness, soft tissue sarcomas (STS) often grow very quickly and they must be removed before they might cause major impairments. A safe margin excision may lead to large defects that require a surgical reconstruction with either free or pedicled flaps. Another relevant aspect, which is gaining more and more attention in the last few years, regards the lymphatic complications that commonly occur after these procedures. The thigh region anatomically accommodates the major lymphatics responsible for the whole leg drainage, and these vessels are often inevitably compromised during the tumor removal. For this reason, plastic surgeons should take into account not only to the aesthetic and functional result, but they should also try to prevent lymphatic sequelae such as lymphocele and lymphedema. The purpose of this report is to describe the potential of a pedicled SCIP flap, used as a lymphatic interpositional flap, in order to restore the lymphatic drainage of the thigh after a major impairment. A 57-year-old patient presenting a thigh sarcoma received a surgical excision leaving a 35 cm × 25 cm defect affecting the anterior compartment. To fulfill all these concerns, a lymphatic interpositional SCIP flap was performed, in pedicled and chimeric fashion. It allowed to completely bury a large (35 cm × 16 cm) soft tissue island, preserving a smaller (5 cm × 4 cm) skin paddle to monitor the whole flap survival. Moreover, the lymphatic issue was faced by preserving the lymphatic vessels running into the flap and moving them into the affected area in order to enhance the lymphatic neo-angiogenesis and offering an additional pattern for lymph drainage. Post-operative course was uneventful and at 9 months follow up the reconstructive result was successful with no signs of lymphatic sequelae. Therefore, we believe that the SCIP flap might be a promising solution for small-to-moderate size thigh defect reconstructions since it is able to satisfy all the typical requirements of this delicate region.

The Anatomic Feasibility of a Functional Chimeric Flap in Complex Abdominal Wall Reconstruction

BACKGROUND

Dynamic and functional abdominal wall reconstruction (FAWR) remains a complex challenge. The ideal flap should have a minimal donor-site morbidity and cover a large surface area with motor and sensory capabilities. The goal was to investigate the feasibility of using a free chimeric flap with anterolateral thigh (ALT) and rectus femoris (RF) components pedicled only on the motor nerve branch.

METHODS

Ten fresh cadavers were dissected with a designed chimeric thigh flap including ALT and RF flaps. Anterolateral thigh was designed and raised with the lateral femoral cutaneous nerve integrated, and the descending branch of the lateral circumflex femoral artery was preserved. Rectus femoris was elevated and the common pedicle was dissected up to the femoral origin. Accompanying motor nerve branches were carefully dissected to their femoral origin.

RESULTS

Twenty RF flaps were dissected and 9 were harvested as a true chimeric flap with ALT. The mean number of neurovascular bundles associated with RF flap was 2.11 ± 0.47, and the mean primary motor nerve average length was 9.40 ± 2.42 cm. The common vascular bundle in all 9 chimeric flaps was ligated, and the flap was rotated toward the abdomen pedicled only by primary motor nerve of the RF muscle. Nerve length was adequate for reach up to xiphoid area in all 20 flaps.

CONCLUSIONS

This study demonstrates the feasibility of the chimeric ALT/RF muscle free flap pedicled only by the motor nerve branch, with adequate flap rotation. Even with the limitations in a live patient, this flap would be an excellent option for FAWR in the right patient.

Total groin defect reconstruction by lymphatic flow-through (LyFT) pedicled deep inferior epigastric artery perforator (DIEP) flap resorting to its superficial veins for lymphovenous anastomosis (LVA): A case report

Extensive surgical removal is often required to treat soft tissue sarcomas. When they are localized in the groin-upper medial thigh region, the excision is particularly demanding because of the rich lymphatic network and lymph nodes present in that area. The lymphatic vessels with respective lymph nodes draining the whole leg are most of the time inevitably damaged, causing a series of debilitating sequelae such as lymphocele and lymphedema. To prevent these issues, together with the defect coverage, additional lymphovenous anastomoses (LVA) showed encouraging results. Here we present a case of resected groin sarcoma reconstructed by means of pedicled lower deep inferior epigastric perforator (DIEP) flap combined with multiple LVAs. In particular, the superficial veins of the DIEP flap have been employed as the donor veins for LVAs. A 76-year-old patient presented a leiomyosarcoma in the right trigonum femorale which was surgically excised leaving a defect of about 12 cm × 7 cm with exposed femoral vessels and nerves. The remaining defect was then filled with a pedicled DIEP flap, and three leaking lymphatic vessels in the thigh were anastomosed with three branches of a superficial vein originating from the DIEP flap. The postoperative course was uneventful and at 12 months follow-up no signs of either seroma or lymphocele. This result suggests that the concept of lymphatic flow-through (LyFT) DIEP flap might be a modern and particularly useful solution for those cases that require both dead space obliteration and lymphatic drainage restoration.

Combined pedicled superficial circumflex iliac artery perforator (SCIP) flap with lymphatic tissue preservation and lymphovenous anastomosis (LVA) for defect reconstruction and lymphedema-lymphocele prevention in thigh sarcoma surgery: Preliminary results

BACKGROUND

Sarcoma surgery often requires large tissue resection to be treated safely. When the tumor is localized in the groin and/or medial thigh, lymphocele and lymphedema are common complications because of the rich lymphatic network present there. The aim of this study is to share the outcome of seven patients who received defect reconstruction in this area with combined pedicled superficial circumflex artery perforator (SCIP) flap with lymphatic tissue preservation and lymphovenous anastomosis (LVA) for prevention of lymphatic complications.

PATIENTS AND METHODS

Seven patients who underwent surgical resection of sarcoma in the groin and/or adductors compartment received defect reconstruction with pedicled SCIP flap combined with LVA. For a better dead space obliteration, four of them also received an additional tissue flap: two pedicled deep inferior epigastric perforator flaps and two free anterolateral thigh flaps. Indocyanine green lymphography was performed in all cases to identify the lymphatic pathway, make the preoperative marking and check the patency of the anastomoses.

RESULTS

All seven patients were successfully treated reaching a good aesthetic result and a full range of motion. No immediate nor delayed complications such as lymphocele or lymphorrhea and early extremity lymphedema were observed during the follow up (range: 6-9 months; mean: 7.3) and no secondary procedures were required.

CONCLUSIONS

The combination of the pedicle SCIP lymphatic tissue transfer with LVA seems to be effective in preventing the development of lymphatic sequelae after large resections in the medial thigh.

Application of a chimeric ALT perforator flap with vastus lateralis muscle mass in the reconstruction of the defects after radical resection of a buccal carcinoma: A retrospective clinical study

BACKGROUND AND OBJECTIVES

Aggressive resection of buccal cancer simultaneously leaves both oral and lateral facial defects. It is unknown whether a perforator-based chimeric anterolateral thigh (ALT) flap, with a muscular component, is suitable for the reconstruction of these complicated defects.

METHODS

In this retrospective study, 48 patients with a buccal carcinoma (T2 N0-1 M0), who underwent extensive surgical resection, were enrolled. Twenty-seven cases underwent reconstruction using the classical ALT perforator flap (classical group), and 21 cases used the chimeric ALT perforator flap with vastus lateralis muscle mass (chimeric group). The incidence of wound infection, lower limb extremity function, facial appearance, survival curves, and quality of life were compared between groups.

RESULTS

The incidence of wound infection or effusion was lower in the chimeric group than in the classical group. The aesthetic result achieved in the chimeric group was better than in the classical group. Meanwhile, there was no significant difference in the function of the donor site between groups.

CONCLUSIONS

The chimeric ALT perforator flap, with a muscular component, can reconstruct both the oral and lateral face defects accurately. It sustains the profile of the lateral face and decreases the incidence of wound infection.

A pedicled split extended vertical deep inferior epigastric (s-vDIEP) flap and an adipo-dermal thigh local flap for the reconstruction of the medial thigh compartment after sarcoma resection: A case report

Large upper medial thigh defects in prior irradiated tissue require challenging reconstructions. Several techniques have been reported to reconstruct this region and according to the literature, pedicled perforator flaps are the first reconstructive option. The anterolateral thigh flap is considered the gold standard, while surprisingly the pedicle deep inferior epigastric (DIEP) flap in vertical fashion has not been frequently employed, if compared with its muscular counterpart, the pedicle vertical rectus abdomins flap (vRAM). We report a case of a multilayered flaps reconstruction of the left medial thigh after an excision of a sarcoma involving the whole adductors compartment. A 75-year-old male patient underwent a free margins resection of the sarcoma. After the resection, a soft tissue defect of 24 cm × 14 cm × 14 cm spreading from the groin to the medial tuberosity of the tibia, was left. We performed a reconstructive technique based on a pedicled split extended vertical deep inferior epigastric (s-vDIEP) flap and an adipo-dermal thigh local flap in order to fill and cover the thigh defect. The s-vDIEP had 2 islands: a cranial de-epithelialized island to fill the dead space and a caudal for the skin closure. The postoperative follow-up was complicated by seroma formation and it was managed by sclerotherapy and at the 6 months follow-up the patient showed good cosmetic and functional outcomes with no sign of tumor relapse. Our result suggests that the proposed multilayered reconstruction may be employed for the restoration of large and deep upper medial thigh defects.