Revisiting Bipedicled Flaps for Lower Extremity Distal Third Defects.

BACKGROUND: Lower extremity reconstruction of the distal third of the leg is challenging. Free tissue transfer is the criterion standard. The COVID-19 pandemic encouraged seeking alternatives for resource consuming procedures. Bipedicled flaps are flaps with a dual-source subdermal perfusion. The purpose of this study was to assess outcomes of patients who had bipedicled flaps primary or auxiliary local flap for distal third leg/foot reconstruction. METHODS: A retrospective review of patients undergoing lower extremity reconstruction (2020-2021) was performed. Inclusion criteria were patients older than 18 years with lower extremity wounds secondary to traumatic injury for which bipedicled flaps were used in the reconstruction. Exclusion criteria included lower extremity wounds secondary to peripheral vascular disease or diabetes. RESULTS: Fourteen patients were included in the study. All patients had distal third of the leg/foot wounds, and 12 patients (87.5%) had concurrent leg fractures. In 8 patients (57.1%), the bipedicled flap was used to decrease the wound size and facilitate another concurrent flap: hemisoleus (21.4%), anterior tibialis muscle turnover (14.3%), medial plantar artery (14.3%), and posterior tibial artery perforator (14.3%). Mean wound size for bipedicle flaps used alone was 42.0 ± 18.3 cm2, whereas wounds that required a bipedicled flap with an additional flap were 69.9 ± 80.8 cm2 (P = 0.187). Two patients had partial flap necrosis (14.3%) but healed their defect. One patient had nonunion (7.1%). Limb salvage rate was 100%. CONCLUSIONS: Bipedicled flaps can be used as an alternative to free flaps in distal third leg/foot defects in select patients. If distal extremity wounds cannot be covered with a bipedicled flap alone, the flap can be used an accessory flap to facilitate reconstruction with other local flaps.

Microsurgical complication associated with vaccine-induced immune thrombotic thrombocytopenia (VITT): A case report.

RATIONALE: The use of ChAdOx1 nCoV-19 (Astra Zeneca) vaccine has proven beneficial, but in a limited number of the general population, it was found to be associated with vaccine-induced immune thrombotic thrombocytopenia (VITT). However, there have been no reports of this complication occurring in a microsurgical free tissue transfer. PATIENT CONCERNS: A 49-year-old man developed an acute myocardial infarction 3 weeks after receiving his first dose of ChAdOx1 nCoV-19 in June 2021. Three months later, he presented with right third toe wet gangrene with extension into the plantar foot nine days after receiving his second dose of ChAdOx1 nCoV-19 vaccine. DIAGNOSIS: Based on recent exposure to vaccination, the timing of inoculation before the development of his symptoms, and serology tests (platelet, D-dimer, and anti-PF4 antibodies), the patient was diagnosed with VITT. INTERVENTIONS: Fasciectomy and sequestrectomy were performed for wound bed preparation. Limb salvage was done using free vastus lateralis muscle flap and skin graft for reconstruction. OUTCOME: The flap was complicated by persistent microthrombi leading to superficial necrosis without vascular pedicle compromise. Repeated debridement of the superficial necrosis was done. Three months after the development of VITT, no further new superficial necrosis was seen. A well-contoured flap was seen 5 months after the initial surgery. LESSONS: We believe this is the first case describing microthrombi in the free flap due to VITT after microsurgical reconstruction. Patients and surgeons should be advised of this possible risk when contemplating microsurgery once VITT has developed after ChAdOx1 nCoV-19 administration.

Microvascular reconstructions in oral and maxillofacial surgery - Results of a survey among oral and maxillofacial surgeons in Germany, Austria, and Switzerland.

This study aimed to evaluate the use of microvascular free flaps (MFF) in oral and maxillofacial surgery (OMFS) in Germany, Austria, and Switzerland. A dynamic online questionnaire, using 42-46 questions, was sent to OMF surgeons based in hospitals in Germany, Austria, and Switzerland. The questionnaire was evaluated internally and externally. Aside from general information, data were collected on organizational aspects, approaches, MFF types and frequency, presurgical planning, intraoperative procedures, perioperative medications, flap monitoring, and patient management. Participants mostly performed 30-40 MFF each year (11/53). Most stated that the COVID-19 pandemic did influence MFF frequency (25/53) to varying extents. Radial forearm flap was most frequently used (37/53), followed by ALT (5/53), and fibula flap (5/53). Primary reconstruction was performed by most participants (35/48). Irradiated bony transplants were mostly used for implant placement after 12 months (23/48). Most participants (38/48) used reconstruction plates, followed by miniplates (36/48), PSI reconstruction (31/48), and PSI miniplates (10/48). Regarding the postoperative use of anticoagulants, low-molecular-weight (37/48) and unfractioned heparins (15/48) were widely used, most often for 3-7 days (26/48). Clinical evaluation was mostly preferred for flap monitoring (47/48), usually every 2 h (34/48), for at least 48 h (19/48). Strong heterogeneity in MFF reconstructions in OMFS was found, especially regarding the timepoints of reconstruction, types of osteosynthesis, and postoperative MFF management. These findings provide the chance to further compare the different treatment algorithms regarding relevant MFF aspects, such as postoperative management. This could create evidence-based treatment algorithms that will further improve the clinical outcomes in MFF reconstructions.

Vascularized free fibula flap oral rehabilitation using tissue engineered mucosa: Report of 3 cases.

The aim of this report is to introduce the use of the dermal substitute Integra® in the context of free fibula flap prelamination for mandibular reconstruction. Three cases of mandibular reconstruction with prefabricated and Integra-prelaminated vascularized fibula flaps are reported in this article. The patients reported in this case series presented with the following tumours: an extensive cemento-ossyfying fibroma, a multicystic ameloblastoma and an extensive calcifying epithelial odontogenic tumour. Virtual three-dimensional (3D) planning and 3D-printed cutting guides were used for the mandibulectomies, the flap harvest and the positioning of the implants. The dermal substitute Integra was used for prelamination instead of skin grafts. Treatment of all 3 patients was performed in two stages; the first consisted of the fibula prefabrication (dental implant insertion) and prelamination, and the second consisted of tumor resection and reconstruction with the vascularized implant-bearing fibula flap. Integra was shown to be able to generate complete mucosa-like tissue over the fibula flaps and in the peri-implant areas. The patients have been followed up for 1, 3 and 7 years, respectively, with satisfactory prosthetic, functional and aesthetic results. None of the patients developed peri-implant disease. It was observed that prelamination with the dermal substitute Integra leads to development of mucosal lining with clinical features similar to oral mucosa. In this report of three cases, use of Integra as part of the prelamination and prefabrication process, instead of skin grafts, appears able to clinically generate mucosal lining with avoidance of skin grafts.

Using a ChatBot to support clinical decision-making in free flap monitoring.

Flap monitoring charts and escalation protocols are ubiquitous amongst microsurgical departments and can facilitate converting flap observations into flap monitoring decisions. However, human factors in the recognition-communication process of decision-making still pose a threat to timely intervention and thus are a key determinant of success in microvascular surgery. Digitally transforming paper-based pathways may facilitate early recognition and escalation to potentially salvage a free flap with compromised vascularity. We describe the early adoption and use case of a ChatBot to support clinical decision-making support for free flap monitoring - the 'FlapBot'.

Intensive care unit versus floor admission following lower extremity free flap surgery: Is there a difference in outcomes?

BACKGROUND: Free tissue transfer (FTT) lower limb salvage requires costly multidisciplinary care. Traditionally, patients who undergo FTT reconstruction for lower extremity (LE) wounds were admitted to the intensive care unit (ICU) in the immediate postoperative period for close monitoring. During the COVID-19 pandemic, our practice shifted toward admitting FTT patients to the floor postoperatively instead of the ICU. The purpose of this study is to compare surgical outcomes in patients admitted to the floor versus ICU immediately following LE free flap reconstruction. METHODS: We retrospectively reviewed patients undergoing LE FTT reconstruction from 2011 to 2021. Flap monitoring consisted of an implantable Cook-Swartz Doppler probe for muscle flaps and ViOptix tissue oximetry for fasciocutaneous flaps; clinical exam and hand-held dopplers were not the primary flap monitoring techniques. Patients were divided into two groups depending on whether they went to the ICU or floor postoperatively. To ensure proper comparability between cohorts, we corrected for age, BMI and Charlson Comorbidity Index (CCI) using 1:2 propensity score matching (floor: ICU). Primary outcomes included early postoperative complications, flap takeback and salvage, flap success, and postoperative length of stay (LOS). RESULTS: A total of 252 patients were identified. Forty-five patients (17.9%) were admitted to the floor postoperatively and 207 patients (82.1%) to the ICU. Overall, microsurgical success rate was 97.2%, which was similar for floor and ICU patients. Flap takeback and salvage were similar between cohorts. Average postoperative LOS was significantly shorter in floor patients (15.7 vs. 19.1 days, p = 0.043). CONCLUSION: Our findings suggest that postoperative floor admission does not decrease flap success rates and should be considered in patients who undergo FTT to LE reconstruction and are otherwise stable. In the ongoing era of health care cost containment, microsurgery centers should consider appropriate floor training to allow medically stable free flap patients to avoid an ICU stay.

The benefits of dual-consultant operating in complex breast reconstruction: A retrospective cohort comparison study.

BACKGROUND: Dual-consultant operating (DCO) has been introduced in a multitude of surgical specialities. This retrospective cohort comparison study seeks to delineate any benefits DCO may confer on list utilisation, patient safety and training opportunities. METHODS: A retrospective cohort comparison of all free-flap breast reconstruction cases conducted at a single centre by five consultant plastic surgeons in the period May 2016-May 2020. RESULTS: A total of 281 patient records were used for analysis; 146 cases were dual consultants compared with 135 single consultants, representing 186 and 158 free flaps, respectively. Patient demographics were near identical in terms of patient age, BMI and ASA grade. Operating times were significantly reduced for both unilateral (mean reduction 59.49 min) and bilateral cases (mean reduction 38.14 min) with the presence of dual consultants. The mean length of stay for dual-consultant cases was on average 0.35 days less than for single consultant cases (p = 0.04). Dual-consultant case complications were less severe than those of single consultant cases (mean Clavien-Dindo severity 1.35 vs 0.96, p = 0.05). The rates of trainee one-to-one consultant training were increased in dual-consultant cases when preparing vessels (0.08 vs 0.35, p=<0.01) and performing anastomosis (0.63 vs 0.77, p = 0.03). CONCLUSIONS: DCO for complex breast reconstruction confers significant benefits to operating time, list utility and patient safety whilst protecting training opportunities for trainees. Plastic surgery departments looking to redesign services in the post-SARS-CoV-19 era should consider its adoption into their enhanced recovery protocols.

Microsurgical autologous breast reconstruction in the midst of a pandemic: A single-unit COVID-19 experience.

INTRODUCTION: COVID-19 has disrupted the provision of breast reconstructive services throughout the UK. Autologous free flap breast reconstruction was restarted in our unit on 3 June 2020. We aimed to compare the unit's performance of microsurgical autologous breast reconstruction in the "post-COVID" period compared with the exact time period in the preceding year. METHODS: We retrospectively reviewed prospectively collected data in the "pre-COVID" (from 3 June 2019 to 31 December 2019) and "post-COVID" period (from 3 June 2020 to 31 December 2020). Patient demographics included age, body mass index, co-morbidities, Anaesthesiologists (ASA) grade and smoking status. Surgical factors included neoadjuvant chemotherapy, previous chest wall radiotherapy, unilateral or bilateral reconstruction, reconstruction timing, number of pedicles, contralateral symmetrisation and other procedures. dependant variables were ischaemic time, operative time, mastectomy weight, flap weight, length of stay, return to theatre and complication rates. The number of trainers and trainees present in theatre was recorded and analysed. RESULTS: Fewer DIEP flaps were performed in the "post-COVID" period (45 vs. 29). No significant difference was observed in mastectomy resection weight, but flap weight was significantly increased. No significant difference was found in ischaemic time as well. The postoperative length of stay was significantly reduced. No significant difference was found in rates of return to theatre, unplanned admission, infection, haematoma, seroma or wound dehiscence. No cases of venous thromboembolism or flap failures were recorded. The mean number of trainers and trainees, and the trainee-to-trainer ratio was not found to be significantly different between cohorts. CONCLUSION: Although fewer cases were performed, autologous breast reconstruction was safely delivered throughout the COVID-19 pandemic in the first wave without affecting training.

Flap coverage for necrotising soft tissue infections: A systematic review.

BACKGROUND: Necrotising soft tissue infections (NSTI) are destructive and often life-threatening infections of the skin and soft tissue, necessitating prompt recognition and aggressive medical and surgical treatment. After debridement, the aim of surgical closure and reconstruction is to minimize disability and optimize appearance. Although skin grafting may fulfil this role, techniques higher on the reconstructive ladder, including local, regional and free flaps, are sometimes undertaken. This systematic review sought to determine the circumstances when this is true, which flaps were most commonly employed, and for which anatomical areas. METHODS: A systematic review of the literature was conducted utilising electronic databases (Medline, Embase, Cochrane Library). Full text studies of flaps used for the management of NSTI's (including Necrotising Fasciitis and Fournier Gangrene) were included. The web-based program 'Covidence' facilitated storage of references and data management. Data obtained in the search included reference details (journal, date and title), the study design, the purpose of the study, the study findings, number of patients with NSTI included, the anatomical areas of NSTI involved, the types of flaps used, and the complication rate. RESULTS: After screening 4555 references, 501 full text manuscripts were assessed for eligibility after duplicates and irrelevant studies were excluded. 230 full text manuscripts discussed the use of 888 flap closures in the context of NSTI in 733 patients; the majority of these were case series published in the last 20 years in a large variety of journals. Reconstruction of the perineum following Fournier's gangrene accounted for the majority of the reported flaps (58.6%). Free flaps were used infrequently (8%), whereas loco-regional muscle flaps (18%) and loco-regional fasciocutaneous flaps (71%) were employed more often. The reported rate of partial or complete flap loss was 3.3%. CONCLUSION: Complex skin and soft tissue defects from NSTIs, not amenable to skin grafting, can be more effectively and durably covered using a spectrum of flaps. This systematic review highlights the important contribution that the plastic surgeon makes as an integral member of multidisciplinary teams managing these patients.

Changing trend in the management of head neck cancers during the COVID-19 pandemic.

BACKGROUND: In the present study, we have shared our experience in managing head neck cancers, especially the oral malignancies, during the crisis of COVID 19. MATERIALS AND METHODS: Patients with oral cancers underwent pedicle/local flaps and free flaps reconstruction based on the availability of intensive care unit and comorbidities of the patients. The clinical outcomes were compared at the end of one week, one month, and three months after the primary surgery. RESULTS: Pedicle/local flaps were used in 25 cases and radial/fibular free flaps were used in 8 cases for the reconstruction of soft tissue defects. Patients with pedicle flap reconstruction had better clinical outcomes, including lesser ICU stay as compared to free flaps. CONCLUSION: Pedicle flap can be a valid alternative to the free flap for the soft tissue reconstruction in advanced oral malignancies during the COVID pandemic period in the Indian subcontinent, especially with limited infrastructure of the hospitals.

A Protocol for Performing Reconstructive Microsurgery on Patients With COVID-19.

On March 11, 2020, the World Health Organization declared COVID-19 to be a pandemic, challenging health care systems all over the world. National health care systems have reorganized to cope with the disease. Surgical services departments around the world have been affected and elective surgical procedures have been postponed to conserve medical resources. When a patient with COVID-19 requires an urgent microsurgical free flap due to trauma or a tumor, personnel from the health care facility must have a protocol in place to follow for the patient's care and follow-up. In this article, we present our protocol for patients with COVID-19 requiring reconstructive microsurgery.

Delayed presentation of head and neck cancer patients during COVID-19 pandemic.

PURPOSE: Impact of COVID-19 pandemic on healthcare is huge. We intended to demonstrate how COVID-19 pandemic affected primary head and neck oncology patient's referral and admission to a tertiary center by comparing the retrospective patient data in March-September 2020 and the same period in 2019. METHODS: In this cross-sectional study, from March 15th, 2020 to September 15th, 2020, medical records of 61 patients (Group 1) diagnosed and scheduled for surgery for head and neck cancer in our tertiary care center were revised and compared with 64 head and neck cancer patients treated in the same institution in the same time period of the previous year (Group2). Surgical site, TNM stages, need for reconstruction with flap, time from first symptom occurrence to first admission to our institution, and time to surgery were noted. RESULTS: In Group 1, out of 56 patients, 26 were diagnosed with T1-2 tumor, while 30 had T3-4 tumor. In Group 2, 43 of 60 patients had T1-2 tumor, while only 17 of them were diagnosed with T3-4 tumor. The rate of T3-4 tumors had significantly increased in 2020 when compared to 2019 (p = 0.049). In oral cavity cancer patients, N stage was significantly increased in Group 1 when compared to Group 2 (p = 0.024). Need for reconstruction with regional or free flaps were significantly increased in oral cavity cancer patients (p = 0,022). The mean time from the beginning of the first symptom to the admission was 19.01 ± 4.6 weeks (ranging between 11 and 32 weeks) in Group 1, while it was 16.6 ± 5.9 weeks in Group 2 (ranging between 6 and18 weeks); with significant increase (p = 0,02). The time to surgery from first admission was 3.4 ± 2.5 and 2.9 ± 1.2 weeks in Group 1 and 2, respectively, with no statistically significant difference (p = 0.06). CONCLUSION: The COVID-19 pandemic has caused delay in the diagnosis and treatment of many diseases as such in head and neck cancers. Admission with advanced stage disease and the need for more complex reconstructive procedures were increased. During the pandemic, the management of other diseases that cause mortality and morbidity should not be neglected and priorities should be determined.

The COVID-19 Pandemic: The effect on open lower limb fractures in a London major trauma centre - a plastic surgery perspective.

BACKGROUND: COVID-19 has created huge pressures on healthcare systems. The ongoing provision of major trauma services during this time has proved challenging. We report our experience of managing open lower limb fractures (oLLFs) during the pandemic in a London major trauma centre (MTC). METHODS: This was a prospective study of all open lower limb fractures presenting to our unit over the initial 48 days of UK government lockdown - 24th March till 10th May 2020. Results were compared to the same time period in 2019 retrospectively. Epidemiological data, mechanism, Gustilo-Anderson (G-A) severity grading, time to initial debridement and definitive coverage were analysed. RESULTS: There was a 64% reduction in emergency department (ED) attendances (25,264 vs 9042). There was an 18% reduction in oLLFs (22 vs 18). Approximately three-quarters of injuries were in males across both cohorts (77% vs 78%) and tended to occur in younger patients (median age, 37 vs 35). Road-traffic-accidents (RTAs) were the most common injury mechanism in both 2019 and lockdown, but a rise in jumpers from height was seen in the latter. A similar pattern of G-A severities were seen, however only 3 injuries during lockdown required major soft tissue reconstruction. There was no significant difference in times taken for initial debridement (p = 0.72786) or definitive wound coverage (p = 0.16152). A greater proportion of independent operating was seen during lockdown between orthopaedics and plastic surgery. CONCLUSIONS: Despite government lockdown measures, oLLFs still placed significant burden on our MTC. Notwithstanding significant staffing alterations and theatre pressures, we have been able to ensure these lower limb emergencies remain a surgical priority and have managed to utilise resources appropriately.

Maxillo-facial reconstruction following cancer ablation during COVID-19 pandemic in southern Italy.

In COVID-19 pandemic era, one major concern is related to ensure optimal management to oncologic patients, even though a context of radical uncertainty. The aim of our effort is to guarantee high-quality and timely care, minimizing COVID-19 infection risk, according to our head and neck (HN) reconstructive mission, still more challenging because of the criticality of the period. Thus, our reconstructive decision algorithm is changed. Microvascular free flaps, reported to be the gold standard for surgical reconstruction, represent extremely specialized procedures necessitating an extended resource allocation not affordable in the adversities of the period. Therefore, we are obliged to define a paradigm shift in our approach, based on free-style reconstructive surgery principles of propeller flap concept. According to our experience, we believe that this viable and feasible surgical technique could represent a reconstructive landmark in this pandemic era, since any guideline is missing, besides HN reconstructive surgery is most likely heading towards a new reconstructive approach.

Breast reconstruction with immediate autologous free tissue transfer in a peri-operative COVID-19 positive patient: A case report illustrating feasibility of aftercare.

Globally, there has been a measured response to rationalise elective operating during the Coronavirus disease 2019 (COVID-19) pandemic. In terms of breast cancer care, this has led to a restricted provision of reconstruction with autologous free tissue transfer. A primary concern is the risk of mortality in elective surgery patients who develop COVID-19. The aim of this report is to describe the observed physiological impact of the virus on our patient, and to address how outpatient care after autologous free tissue transfer can be delivered to COVID-19 positive patients. In March 2020, we performed a bilateral breast reconstruction with a deep inferior epigastric perforator flap and a superficial inferior epigastric perforator flap. The patient became symptomatic on day three post-operatively, tested positive for COVID-19 and was discharged home. Drain and dressing management was continued through the use of telemedicine. Two weeks following the operation, a breast seroma formed that was drained semi-electively in the COVID-19 positive area of the Emergency Department. The patient visited the dressing clinic twice in total and healed after three weeks. Despite undergoing complex surgery and having pre-operative chemotherapy, our patient suffered a mild form of the virus limited to upper respiratory symptoms. Physiologically we did not see any significant difference to that of the normal post-operative course. This case demonstrates the possibility of managing autologous breast reconstruction patients using telemedicine. Although COVID-19 can complicate, or even be fatal, in the perioperative course, our patient thankfully suffered no discernable negative outcome from her infection.