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2.
Microsurgery ; 44(5): e31213, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-39011824

RESUMO

INTRODUCTION: Complex open long bone fractures present a multidisciplinary surgical challenge. Various treatment options are discussed with no consensus. Fibula flaps (FF) are frequently used in maxillofacial surgery, however their use in limb injuries is less common. With the tremendous improvement in microsurgery, orthoplastic surgery gained importance. Our retrospective study aims to assess the long-term results and the quality of life of the patients operated by FF for complex traumatic limb reconstruction. PATIENTS AND METHODS: We conducted an observational mono centric retrospective study from the year 2011 to the year 2021. Patients operated for complicated traumatic limb fractures using FF were included in the study. Not only long-term clinical results were evaluated, but also Patient-reported outcome measures (PROM). These included the Lower Extremity Functional Scale (LEFS), Quick Disabilities of the Arm, shoulder and hand (Qdash), and the Visual Analogue Scale (VAS). The statistical analysis was done using the R Software. RESULTS: Twenty patients were included in our study. 80% achieved complete union with no re fracture rate at a median follow-up of 41 months. All of the patients (n = 4) who underwent amputation were smokers (p = .09), were operated for lower limb fractures (p = .54), and were males (p = 1). The length of hospital stay was associated with an increased duration to complete bony union (p = .01, coefficient = 2.88). At the end of follow-up, the LEFS median score was 67 for the total population and 63.5 for the lower limb reconstructed sub group. CONCLUSION: VFF is an important tool in the armamentarium of orthoplastic surgeons. Encouraging long term functional and clinical outcomes were obtained in patients with complex traumatic limb fractures.


Assuntos
Fíbula , Retalhos de Tecido Biológico , Procedimentos de Cirurgia Plástica , Humanos , Masculino , Estudos Retrospectivos , Feminino , Adulto , Fíbula/transplante , Procedimentos de Cirurgia Plástica/métodos , Pessoa de Meia-Idade , Seguimentos , Retalhos de Tecido Biológico/transplante , Resultado do Tratamento , Fraturas Expostas/cirurgia , Qualidade de Vida , Adulto Jovem , Medidas de Resultados Relatados pelo Paciente , Idoso , Microcirurgia/métodos
5.
Oral Oncol ; 156: 106945, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39002300

RESUMO

OBJECTIVES: This study aimed to compare the risk of osteoradionecrosis and implant survival in oral cancer patients undergoing immediate dental implants during jaw reconstruction, termed "Jaw in a Day" (JIAD), with those receiving no implants or delayed implants (non-JIAD). PATIENTS & METHODS: Clinicopathologic data were collected from prospectively enrolled JIAD patients (n = 10, 29 implants) and retrospectively from non-JIAD patients (n = 117, 86 implants). Survival analyses were performed to assess implant survival and osteoradionecrosis-free survival. RESULTS: Osteoradionecrosis occurred in 0 % of JIAD cases compared to 19.3 % in non-JIAD cases without implants and 71.4 % in non-JIAD cases with delayed implants (p = 0.008). Osteoradionecrosis-free survival was significantly better in the JIAD group than the non-JIAD group (p = 0.0059). Implants in the JIAD group all survived regardless of radiation therapy (29/29, 100 %) and 95.1 % (58/61) of implants survived in delayed implants in non-irradiated fibula without radiotherapy. Meanwhile, only 11 of 25 implants placed in irradiated fibula flaps survived, even when the implants were placed after a median time interval of 624 days after radiotherapy, and none of them were earlier than 360 days. The survival analysis revealed a significant difference (p < 0.0001). CONCLUSION: JIAD appears to offer superior outcomes in terms of implant survival and osteoradionecrosis prevention compared to delayed implant placement. Placing implants in irradiated fibula, even after years, significantly poses high risk of implant failure and osteoradionecrosis. JIAD represents a promising approach for optimal rehabilitation, particularly in oral cancer patients requiring postoperative radiotherapy. Proper positioning and orientation of implants and flaps are crucial for implant survival.


Assuntos
Implantes Dentários , Fíbula , Retalhos de Tecido Biológico , Osteorradionecrose , Humanos , Osteorradionecrose/cirurgia , Osteorradionecrose/etiologia , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Fíbula/cirurgia , Fíbula/transplante , Estudos Retrospectivos , Procedimentos de Cirurgia Plástica/métodos , Neoplasias Bucais/cirurgia , Neoplasias Bucais/radioterapia , Adulto , Arcada Osseodentária , Estudos Prospectivos
6.
Microsurgery ; 44(6): e31215, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39032017

RESUMO

Defects in the distal lower limbs are common in the field of orthoplastic reconstruction. The ankle area presents little subcutaneous tissue and is often affected by high-energy traumas and bone fractures. Wounds in this region are frequently associated with severe edema that might prevent primary closure. Due to its thinness and tension, the skin overlying both the medial and lateral malleoli is prone to necrosis, which can further lead to large soft tissue defects. Vessels, nerves, and tendons can easily become exposed. The reconstructive approach should aim to provide high-quality tissue that is durable enough to withstand the weight-bearing pressures and the friction from shoes, while remaining sufficiently elastic to conform to the shape of the ankle and to permit the foot movement. In this study, we describe the use of an additional propeller flap to reduce skin tension at the recipient site. A superficial circumflex iliac artery perforator (SCIP) flap was utilized to cover a defect below the medial malleolus. However, after flap inset, achieving a primary closure of the proximal wound without tension was not possible. During the dissection of the posterior tibial artery, perforator vessels were identified and preserved. The larger of these vessels was then used to vascularize a propeller flap, which was then rotated toward the defect to aid a tension-free closure. The postoperative course was uneventful. This case may provide a valuable insight into the challenges often faced during wound closure, even after flap inset. Since the flap itself may increase the width of the dissection area, the present case shows the importance of preserving perforator vessels during the proximal dissection since they can allow the harvest of an additional flap to achieve primary closure and further alleviate tension.


Assuntos
Traumatismos do Tornozelo , Retalho Perfurante , Procedimentos de Cirurgia Plástica , Humanos , Procedimentos de Cirurgia Plástica/métodos , Retalho Perfurante/irrigação sanguínea , Masculino , Traumatismos do Tornozelo/cirurgia , Retalhos de Tecido Biológico/transplante , Lesões dos Tecidos Moles/cirurgia , Adulto
7.
Microsurgery ; 44(5): e31211, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38994707

RESUMO

PURPOSE: The superficial temporal artery (STA) and facial artery (FA) are two commonly used recipient vessels when performing free tissue transfer to the head and neck. This meta-analysis compares the impact of recipient vessel location on free flap outcomes in scalp reconstruction. METHODS: A systematic review was conducted following PRISMA-P guidelines using six databases. Studies reporting free tissue transfer using the STA or FA as a recipient vessel for reconstructing scalp defects were included. Outcomes of interest included flap loss, partial flap necrosis, wound dehiscence, venous thrombosis, and infection rates. Quality evaluation was performed using ASPS criteria and the ROBINS-I tool. RESULTS: Of 3270 identified articles, 12 were included for final analysis. In total, 125 free flaps were identified (75 STA, 50 FA). Pooled analysis demonstrated an overall flap survival rate of 98.4% (STA 98.7% vs. FA 98.0%; p = .782). The mean defect size was significantly greater for flaps using the STA compared with the FA (223.7 ± 119.4 cm2 vs. 157.1 ± 96.5 cm2, p = .001). The FA group had a higher incidence of wound dehiscence than the STA group (14.0% vs. 1.3%, p = .005). However, meta-analysis demonstrated no significant difference in rates of wound dehiscence, flap loss, partial flap necrosis, venous congestion, or postoperative infection between groups. CONCLUSION: This is the first systematic review and meta-analysis to assess recipient vessel selection in scalp reconstruction. Our results do not support a single vessel as the superior choice in scalp reconstruction. Rather, these findings suggest that the decision between using the STA or FA is multifaceted, requiring a flexible approach that considers the individual characteristics of each case. Further research is needed to explore additional factors influencing recipient vessel selection, including defect location, radiation therapy, and prior head and neck surgery.


Assuntos
Retalhos de Tecido Biológico , Procedimentos de Cirurgia Plástica , Couro Cabeludo , Artérias Temporais , Humanos , Couro Cabeludo/cirurgia , Couro Cabeludo/irrigação sanguínea , Retalhos de Tecido Biológico/irrigação sanguínea , Retalhos de Tecido Biológico/transplante , Procedimentos de Cirurgia Plástica/métodos , Artérias Temporais/cirurgia , Complicações Pós-Operatórias/epidemiologia , Sobrevivência de Enxerto
9.
Int J Surg Oncol ; 2024: 5339292, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38966634

RESUMO

Objective: Determine the histopathologic features that correlate with head and neck cancer (HNC) cachexia. Methods: A single-institution, retrospective study was performed on adults with HPV-negative, mucosal squamous cell carcinoma of the aerodigestive tract undergoing resection and free flap reconstruction from 2014 to 2019. Patients with distant metastases were excluded. Demographics, comorbidities, preoperative nutrition, and surgical pathology reports were collected. Comparisons of histopathologic features and cachexia severity were made. Results: The study included 222 predominantly male (64.9%) patients aged 61.3 ± 11.8 years. Cachexia was identified in 57.2% patients, and 18.5% were severe (≥15% weight loss). No differences in demographics were identified between the groups. Compared to control, patients with severe cachexia had lower serum hemoglobin (p=0.048) and albumin (p < 0.001), larger tumor diameter (p < 0.001), greater depth of invasion (p < 0.001), and elevated proportions of pT4 disease (p < 0.001), pN2-N3 disease (p=0.001), lymphovascular invasion (p=0.009), and extranodal extension (p=0.014). Multivariate logistic regression identified tumor size (OR [95% CI] = 1.36 [1.08-1.73]), oral cavity tumor (OR [95% CI] = 0.30 [0.11-0.84]), and nodal burden (OR [95% CI] = 1.16 [0.98-1.38]) as significant histopathologic contributors of cancer cachexia. Conclusions: Larger, more invasive tumors with nodal metastases and aggressive histologic features are associated with greater cachexia severity in mucosal HNC.


Assuntos
Caquexia , Neoplasias de Cabeça e Pescoço , Humanos , Caquexia/patologia , Caquexia/etiologia , Masculino , Pessoa de Meia-Idade , Feminino , Estudos Retrospectivos , Neoplasias de Cabeça e Pescoço/patologia , Neoplasias de Cabeça e Pescoço/cirurgia , Neoplasias de Cabeça e Pescoço/complicações , Idoso , Carcinoma de Células Escamosas de Cabeça e Pescoço/cirurgia , Carcinoma de Células Escamosas de Cabeça e Pescoço/patologia , Carcinoma de Células Escamosas de Cabeça e Pescoço/complicações , Prognóstico , Invasividade Neoplásica , Retalhos de Tecido Biológico
10.
Microsurgery ; 44(5): e31210, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38984459

RESUMO

BACKGROUND: Amputation of the wrist or distal forearm after high-energy trauma due to a crushing mechanism is associated with complex tissue defects, making repair, and reconstruction challenging. Given the difficulty of this type of salvage, patients unfortunately experience a high revision amputation rate. However, a higher quality of life has been reported in patients with successful reconstructions. Herein, we described a protocolized approach for revascularization and reconstruction for functional hand salvage after traumatic amputation from a crushing mechanism using an anterolateral thigh flap (ALT). METHODS: A retrospective review was performed between October 2016 and October 2023 for all patients who underwent single-stage emergent debridement, revascularization, and soft tissue coverage using the ALT after amputation at the level of the wrist or distal forearm secondary to high-energy crush injury. Charts were reviewed for the preoperative Mangled Extremity Salvage Score, intraoperative details including what structures were injured and the reconstructive method performed, and postoperative data such as follow-up duration, outcomes, and complications. RESULTS: Eleven patients met the inclusion criteria with an average age of 35.5 (21-49) years old. The average size of the skin soft tissue defects was 17.3 × 8 cm (range, length: 13-25 cm, width: 6-13 cm), and all cases had associated injury to the underlying bone, nerves, and blood vessels. The average size of the ALT flap used for reconstruction was 19.2 × 9.8 cm (range, length: 14-27 cm, width: 7-15 cm). All patients had survival of the replanted limb. One patient experienced partial flap necrosis that required secondary debridement and skin graft. Nine patients healed without requiring any additional debridement procedures. Patient follow-up averaged 24.6 (12-38) months. All patients achieved satisfactory functional recovery with Grade II to III of Chen's criteria. CONCLUSIONS: For patients with traumatic crush amputation to the wrist with surrounding soft tissue injury, thorough debridement, revascularization, and reconstruction of amputated limbs can be performed in a single stage using the ALT. A protocolized approach from two institutions is presented, demonstrating improved survival and reduced complications of the traumatized limb with improved long-term patient outcomes.


Assuntos
Amputação Traumática , Lesões por Esmagamento , Traumatismos do Antebraço , Procedimentos de Cirurgia Plástica , Traumatismos do Punho , Humanos , Estudos Retrospectivos , Adulto , Masculino , Pessoa de Meia-Idade , Traumatismos do Antebraço/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Lesões por Esmagamento/cirurgia , Feminino , Traumatismos do Punho/cirurgia , Amputação Traumática/cirurgia , Adulto Jovem , Salvamento de Membro/métodos , Protocolos Clínicos , Retalhos de Tecido Biológico/transplante , Retalhos de Tecido Biológico/irrigação sanguínea , Retalhos Cirúrgicos/irrigação sanguínea , Retalhos Cirúrgicos/transplante , Resultado do Tratamento , Desbridamento/métodos
11.
Microsurgery ; 44(5): e31209, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38970406

RESUMO

BACKGROUND: Instep flaps are commonly used for the reconstruction of weight-bearing areas of the foot. However, in cases of large defects or damage to the instep area, non-instep flaps such as reverse sural flaps (RSF) or free anterolateral thigh flaps (ALTF) can be employed. Previous studies have primarily focused on heel reconstruction when comparing different flaps, without considering the forefoot. This study aims to verify the clinical outcomes of these flaps and determine the appropriate donor site for weight-bearing areas of the foot including forefoot reconstruction. METHODS: In a retrospective study, 39 patients who had undergone flap reconstruction of weight-bearing area defects in the foot with a follow-up period of ≥1 year were included. The patients were categorized into two groups: Group A (n = 19) using instep flaps, and Group B (n = 20) using non-instep flap including RSFs and ALTFs. Surgical outcomes were assessed based on the success of the flap, the presence of partial necrosis, the number of additional surgeries, and complications related to the donor site. Clinical evaluation included visual analogue scale (VAS) and American Orthopedic Foot and Ankle Society (AOFAS) score, and the occurrence of ulcers. RESULTS: All flaps were successful, while partial necrosis occurred in one case in Group B. There were three reclosures after flap border debridement in both groups and one donor site debridement in Group A. The VAS scores during weight-bearing were 2.0 ± 1.1 and 2.2 ± 1.5 for Groups A and B, respectively (p = .716). The AOFAS scores were 52.8 ± 6.8 and 50.2 ± 12.7 for Groups A and B, respectively (p = .435). The occurrence of ulcers was 0.4 ± 0.9 times for Group A and 0.3 ± 0.7 times for Group B, with no significant difference between the two groups (p = .453). CONCLUSION: There was no difference in clinical outcomes between the types of flaps after reconstruction of the forefoot and hindfoot. Therefore, it is recommended to choose the appropriate flap based on factors such as the size of the defect, its location, and vascular status rather than the type of flap.


Assuntos
Traumatismos do Pé , Antepé Humano , Calcanhar , Procedimentos de Cirurgia Plástica , Suporte de Carga , Humanos , Estudos Retrospectivos , Feminino , Masculino , Pessoa de Meia-Idade , Procedimentos de Cirurgia Plástica/métodos , Calcanhar/cirurgia , Calcanhar/lesões , Adulto , Traumatismos do Pé/cirurgia , Antepé Humano/cirurgia , Retalhos Cirúrgicos/transplante , Lesões dos Tecidos Moles/cirurgia , Idoso , Retalhos de Tecido Biológico/transplante , Resultado do Tratamento , Adulto Jovem
12.
Curr Opin Otolaryngol Head Neck Surg ; 32(4): 278-281, 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-38963437

RESUMO

PURPOSE OF REVIEW: Surgery, radiation, and chemotherapy are often utilized in the treatment of head and neck cancer. These treatments can cause extensive scarring within the neck and can limit the viability of recipient vessels for further microvascular reconstruction. Patients with vessel-depleted necks provide a significant challenge for microvascular surgeons and are a topic of much discussion in the field. RECENT FINDINGS: While reconstruction in the vessel-depleted neck is an active area of interest, the patient population is rare. Therefore, single institution series with small numbers comprise the majority of published literature. Recent publications describe techniques for identifying adequate recipient vessel options outside of the field of treatment with excellent free flap outcomes. Further, recent summary articles describe techniques for addressing issues with pedicle length that can arise when using vessels that are far from the defect to be reconstructed. SUMMARY: When viable vessel options are available within the treatment field, these recipient vessels can be used with good reliability and free flap success. If in-field recipient vessels are not available, minimal access incisions can be used to identify superficial temporal, angular, contralateral facial, or transverse cervical vessels. Further away from the treatment field, internal mammary vessels can be harvested through open or robotic approaches. If the use of these distant vessels creates issues with pedicle length, interposition vein grafts, arteriovenous (AV) loops, or flow-through flaps can be used to augment vessel length.


Assuntos
Neoplasias de Cabeça e Pescoço , Procedimentos de Cirurgia Plástica , Humanos , Neoplasias de Cabeça e Pescoço/cirurgia , Procedimentos de Cirurgia Plástica/métodos , Pescoço/irrigação sanguínea , Pescoço/cirurgia , Retalhos Cirúrgicos/irrigação sanguínea , Retalhos de Tecido Biológico/irrigação sanguínea
13.
J Otolaryngol Head Neck Surg ; 53: 19160216241265089, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-39077923

RESUMO

BACKGROUND: In microvascular head and neck reconstruction, ischemia of the free flap tissue is inevitable during microsurgical anastomosis and may affect microvascular free flap perfusion, which is a prerequisite for flap viability and a parameter commonly used for flap monitoring. The aim of this study was to investigate the influence of the number of ischemia intervals and ischemia duration on flap perfusion. METHODS: Intraoperative and postoperative flap blood flow, hemoglobin concentration, and hemoglobin oxygen saturation at 2 and 8 mm tissue depths, as measured with the O2C tissue oxygen analysis system, were retrospectively analyzed for 330 patients who underwent microvascular head and neck reconstruction between 2011 and 2020. Perfusion values were compared between patients without (control patients) and with a second ischemia interval (early or late) and examined with regard to ischemia duration. RESULTS: Intraoperative and postoperative flap blood flow at 8 mm tissue depth were lower in patients with early second ischemia intervals than in control patients [102.0 arbitrary units (AU) vs 122.0 AU, P = .030; 107.0 AU vs 128.0 AU, P = .023]. Both differences persisted in multivariable analysis. Intraoperative and postoperative flap blood flow at 8 mm tissue depth correlated weakly negatively with ischemia duration in control patients (r = -.145, P = .020; r = -.124, P = .048). Both associations did not persist in multivariable analysis. CONCLUSIONS: The observed decrease in microvascular flap blood flow after early second ischemia intervals may reflect ischemia-related vascular flap tissue damage and should be considered as a confounding variable in flap perfusion monitoring.


Assuntos
Retalhos de Tecido Biológico , Neoplasias de Cabeça e Pescoço , Isquemia , Procedimentos de Cirurgia Plástica , Humanos , Retalhos de Tecido Biológico/irrigação sanguínea , Estudos Retrospectivos , Masculino , Feminino , Pessoa de Meia-Idade , Procedimentos de Cirurgia Plástica/métodos , Neoplasias de Cabeça e Pescoço/cirurgia , Idoso , Isquemia/cirurgia , Isquemia/fisiopatologia , Microcirurgia/métodos , Adulto , Fatores de Tempo , Fluxo Sanguíneo Regional/fisiologia
14.
BMC Anesthesiol ; 24(1): 258, 2024 Jul 29.
Artigo em Inglês | MEDLINE | ID: mdl-39075344

RESUMO

BACKGROUND: The epidemiology and risk factors for postoperative complications related to free flap reconstruction in head and neck cancer patients admitted to the Intensive Care Unit (ICU) are unknown. METHODS: We performed a retrospective cohort study of patients with free flap reconstruction of head and neck cancer between September 2015 and April 2023 admitted to the ICU of Beijing Tongren Hospital. The univariate and multivariate analyses were used to explore the risk factors for postoperative complications related to free flap reconstruction admitted to ICU, including flap necrosis, bleeding, fistula, and infection. RESULTS: A total of 239 patients were included in this study, and 38 (15.9%) patients had postoperative complications related to free flap reconstruction. The median length of ICU stay was 1 day (interquartile range, 1-2 days). Multivariate analysis found that low BMI (P < 0.001), high postoperative CRP (P = 0.005), low hemoglobin (P = 0.012), and inadequate fluid intake (P < 0.05) were independent risk factors for complications. CONCLUSIONS: Postoperative complications related to free flap reconstruction were common in this ICU population. Careful fluid management and monitoring of CRP and hemoglobin levels may reduce complications.


Assuntos
Retalhos de Tecido Biológico , Neoplasias de Cabeça e Pescoço , Unidades de Terapia Intensiva , Procedimentos de Cirurgia Plástica , Complicações Pós-Operatórias , Humanos , Estudos Retrospectivos , Masculino , Feminino , Complicações Pós-Operatórias/epidemiologia , Complicações Pós-Operatórias/etiologia , Pessoa de Meia-Idade , Neoplasias de Cabeça e Pescoço/cirurgia , Fatores de Risco , Procedimentos de Cirurgia Plástica/métodos , Procedimentos de Cirurgia Plástica/efeitos adversos , Estudos de Coortes , Idoso , Tempo de Internação , Adulto
15.
Microsurgery ; 44(6): e31214, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39031998

RESUMO

BACKGROUND: In breast reconstruction, arterial coupling has been reported to be more favorable in the thoracodorsal artery (TDA) than the internal mammary artery (IMA). This technique may help overcome anastomosis in a small, deep space. Understanding the arteries' mechanical properties is crucial for breast reconstruction's safety and success. METHODS: Abdominal-based free flap breast reconstructions performed by a single surgeon between 2020 and 2022 were retrospectively analyzed. The patients were classified by microanastomosis technique (handsewn and coupler device) to compare the rate of vascular revision. Histomorphometric analysis of arterial coupling in TDA and IMA was performed in 10 fresh cadavers for comparing wall thickness and composition, including densities of elastic fiber, smooth muscle, and collagen. RESULTS: A total of 309 patients (339 reconstructed breasts) were included. There were 29 patients in the TDA handsewn group (A), 38 patients in the TDA coupler group (B), and 242 patients in the IMA handsewn group (C). The rates of arterial revision in groups A, B, and C were 0.00% (95%CI: 0.00%-11.03%), 2.5% (95%CI: 0.44%-12.88%), and 1.49% (95%CI: 0.58%-3.77%), respectively, with no statistically significant differences (p-value = .694). Histologically, the thickness of the tunica media and adventitia between IMA and TDA showed no significant difference. The density of elastic fiber was significantly higher in IMA (16.70%) than in TDA (0.79%) (p-value <.001). CONCLUSION: The histologic characteristics of TDA are more favorable for arterial coupling than those of IMA. Arterial coupling is a safe option in situations where TDA anastomosis must be performed through a narrow and deep incision.


Assuntos
Retalhos de Tecido Biológico , Mamoplastia , Artéria Torácica Interna , Humanos , Artéria Torácica Interna/cirurgia , Artéria Torácica Interna/anatomia & histologia , Feminino , Estudos Retrospectivos , Mamoplastia/métodos , Pessoa de Meia-Idade , Retalhos de Tecido Biológico/irrigação sanguínea , Adulto , Anastomose Cirúrgica/métodos , Idoso , Cadáver
16.
Microsurgery ; 44(6): e31212, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-39046178

RESUMO

INTRODUCTION: A reconstructive option for extensive chest wall reconstruction is the free myocutaneous vastus lateralis muscle (VL) flap which can be performed in isolation or in conjunction with a fasciocutaneus anterolateral thigh (cVLALT) and/or myofasciocutaneous tensor fascia lata flap (cVLTFL). We aimed to directly compare the outcomes of these reconstructive options. METHODS: Patients who underwent oncological chest wall reconstruction with a free VL, cVLALT, or cVLTFL flap between February 2010 and 2022 were included in this retrospective study. Patient demographics, surgical characteristics, as well as medical and reconstructive outcomes, were evaluated. The operative outcomes between myocutaneous VL, cVLALT, and cVLTFL flap reconstructions were compared. RESULTS: A total of 41 patients underwent chest wall reconstruction with a free myocutaneous VL (n = 25; 61%), cVLALT (n = 14; 34%), or cVLTFL Three acute flap thromboses occurred in the entire cohort (3/41, 7%), with one myocutaneous VL flap failing because of recurrent venous thrombosis during the salvage procedure. Total flap necrosis was seen in two cases (5%; VL flap: n = 1; cVLALT flap: n = 1), and partial flap necrosis in one VL flap (1/25, 4%) and in the distal ALT portion of three cVLALT flaps (3/14, 21%). No significant difference was seen between isolated VL and conjoined VL flaps regarding the partial (p = .28) or total flap necrosis rate (p = .9). CONCLUSION: The free (conjoined) VL flap provides reliable outcomes for obliterating dead space achieving durable reconstruction of complex chest wall defects.


Assuntos
Fascia Lata , Retalhos de Tecido Biológico , Procedimentos de Cirurgia Plástica , Músculo Quadríceps , Coxa da Perna , Parede Torácica , Humanos , Masculino , Feminino , Estudos Retrospectivos , Pessoa de Meia-Idade , Procedimentos de Cirurgia Plástica/métodos , Parede Torácica/cirurgia , Fascia Lata/transplante , Retalhos de Tecido Biológico/transplante , Idoso , Adulto , Coxa da Perna/cirurgia , Músculo Quadríceps/transplante , Músculo Quadríceps/cirurgia , Retalho Miocutâneo/transplante , Neoplasias Torácicas/cirurgia , Resultado do Tratamento
17.
Ann Plast Surg ; 93(2): 200-204, 2024 Aug 01.
Artigo em Inglês | MEDLINE | ID: mdl-39023408

RESUMO

PURPOSE: Frostbite is often managed conservatively; however, in severe cases, microsurgical free tissue transfer is required for soft tissue coverage and limb salvage. Given its rarity, the techniques and outcomes of these cases are not well described. The purpose of this report is to present the largest case series, to date, of frostbite injuries requiring microsurgical reconstruction for limb salvage. METHODS: A single-center retrospective review was conducted of all patients who underwent free tissue transfer by a single surgeon from 2008 to 2022. Patients of all ages were included if they suffered a frostbite injury requiring free tissue transfer. Demographics, operative details, and surgical outcomes were recorded. RESULTS: Eight patients with frostbite injuries were included in the report. Patients had frostbite injuries either to the lower extremities (n = 4) or to both upper and lower extremities (n = 4). Sixteen free flaps were done in total including four paired chimeric and eight single free flaps. Flap recipient sites included knees (n = 5), foot/ankle (n = 3), dorsal hands (n = 2), and thumbs (n = 2). All 16 flaps survived. Five patients had complications: four with major complications requiring operative management and two with minor complications requiring conservative management. Mean follow-up time was 505.7 days (range 115-1564). All lower extremity reconstructions were able to weight-bear at an average of 125.2 days post-injury (range 87-164). CONCLUSIONS: This case series demonstrates that free tissue transfer is a robust option for soft tissue coverage and functional limb salvage in patients with severe frostbite injuries to both upper and lower extremities.


Assuntos
Retalhos de Tecido Biológico , Congelamento das Extremidades , Salvamento de Membro , Microcirurgia , Procedimentos de Cirurgia Plástica , Humanos , Congelamento das Extremidades/cirurgia , Estudos Retrospectivos , Salvamento de Membro/métodos , Retalhos de Tecido Biológico/transplante , Masculino , Feminino , Adulto , Microcirurgia/métodos , Procedimentos de Cirurgia Plástica/métodos , Pessoa de Meia-Idade , Resultado do Tratamento , Adulto Jovem , Adolescente , Escala de Gravidade do Ferimento , Lesões dos Tecidos Moles/cirurgia , Criança
18.
JAMA Netw Open ; 7(7): e2424299, 2024 Jul 01.
Artigo em Inglês | MEDLINE | ID: mdl-39058486

RESUMO

Importance: Meticulous postoperative flap monitoring is essential for preventing flap failure and achieving optimal results in free flap operations, for which physical examination has remained the criterion standard. Despite the high reliability of physical examination, the requirement of excessive use of clinician time has been considered a main drawback. Objective: To develop an automated free flap monitoring system using artificial intelligence (AI), minimizing human involvement while maintaining efficiency. Design, Setting, and Participants: In this prognostic study, the designed system involves a smartphone camera installed in a location with optimal flap visibility to capture photographs at regular intervals. The automated program identifies the flap area, checks for notable abnormalities in its appearance, and notifies medical staff if abnormalities are detected. Implementation requires 2 AI-based models: a segmentation model for automatic flap recognition in photographs and a grading model for evaluating the perfusion status of the identified flap. To develop this system, flap photographs captured for monitoring were collected from patients who underwent free flap-based reconstruction from March 1, 2020, to August 31, 2023. After the 2 models were developed, they were integrated to construct the system, which was applied in a clinical setting in November 2023. Exposure: Conducting the developed automated AI-based flap monitoring system. Main Outcomes and Measures: Accuracy of the developed models and feasibility of clinical application of the system. Results: Photographs were obtained from 305 patients (median age, 62 years [range, 8-86 years]; 178 [58.4%] were male). Based on 2068 photographs, the FS-net program (a customized model) was developed for flap segmentation, demonstrating a mean (SD) Dice similarity coefficient of 0.970 (0.001) with 5-fold cross-validation. For the flap grading system, 11 112 photographs from the 305 patients were used, encompassing 10 115 photographs with normal features and 997 with abnormal features. Tested on 5506 photographs, the DenseNet121 model demonstrated the highest performance with an area under the receiver operating characteristic curve of 0.960 (95% CI, 0.951-0.969). The sensitivity for detecting venous insufficiency was 97.5% and for arterial insufficiency was 92.8%. When applied to 10 patients, the system successfully conducted 143 automated monitoring sessions without significant issues. Conclusions and Relevance: The findings of this study suggest that a novel automated system may enable efficient flap monitoring with minimal use of clinician time. It may be anticipated to serve as an effective surveillance tool for postoperative free flap monitoring. Further studies are required to verify its reliability.


Assuntos
Inteligência Artificial , Retalhos de Tecido Biológico , Humanos , Masculino , Feminino , Pessoa de Meia-Idade , Idoso , Adulto , Idoso de 80 Anos ou mais , Fotografação/métodos , Monitorização Fisiológica/métodos , Monitorização Fisiológica/instrumentação , Adulto Jovem , Adolescente , Procedimentos de Cirurgia Plástica/métodos , Reprodutibilidade dos Testes
19.
BMC Musculoskelet Disord ; 25(1): 603, 2024 Jul 30.
Artigo em Inglês | MEDLINE | ID: mdl-39080622

RESUMO

BACKGROUND: There are several surgical options for osteonecrosis of the lunate, and confirming the effectiveness of various surgical methods remains challenging. Here, we present a case of stage IIIB osteonecrosis of the lunate repaired with a free medial femoral condyle osteocutaneous flap. CASE PRESENTATION: A 43-year-old male construction worker was admitted to our hospital due to right wrist pain, impaired mobility, and pain aggravated by activity for 10 months. The patient was diagnosed with stage IIIB osteonecrosis of the lunate based on the orthopantomogram and magnetic resonance imaging of the right wrist. Considering the patient's medical history, physical examination, auxiliary examination, and wishes, reconstruction was performed using a free medial femoral condyle osteocutaneous flap. After the flap survived completely, the K-wires were removed one month after the operation, the external brace was removed two months after the operation, and functional wrist rehabilitation was initiated. After six months of follow-up, the wrist swelling and pain resolved, and the reconstructed lunate bone was viable. Additionally, the last follow-up was conducted in the sixth month after surgery; the affected hand grip strength improved from about 70% (28 kg) to 80% (32 kg) compared with the healthy side (40 kg); the visual analog scale score decreased from 6.5 points before the operation to 1 point; and the MAYO score increased from 60 points before the operation to 85 points. CONCLUSIONS: The success of this case reinforces the potential of the free medial femoral condyle osteocutaneous flap as a new treatment option for stage IIIB osteonecrosis of the lunate and further expands the existing treatment options. Using a free medial femoral condyle osteocutaneous flap to reconstruct the lunate and restore the carpal anatomy may.


Assuntos
Fêmur , Retalhos de Tecido Biológico , Osso Semilunar , Osteonecrose , Humanos , Masculino , Adulto , Osteonecrose/cirurgia , Osteonecrose/diagnóstico por imagem , Fêmur/cirurgia , Fêmur/diagnóstico por imagem , Fêmur/patologia , Osso Semilunar/cirurgia , Osso Semilunar/diagnóstico por imagem , Retalhos de Tecido Biológico/transplante , Resultado do Tratamento , Procedimentos de Cirurgia Plástica/métodos , Transplante Ósseo/métodos
20.
Microsurgery ; 44(5): e31202, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38887138

RESUMO

INTRODUCTION: One of the biggest challenges with gender-affirming vaginoplasty was the creation of a long-lasting, durable, patent, and self-lubricating neovaginal canal that allowed for spontaneous, pain-free sexual intercourse. The jejunum was a durable, physiologic, and intestinal option to create the neovaginal canal that minimizes the adverse effects of skin graft, peritoneal, and colonic vaginoplasties. Free jejunal vaginoplasties had been performed in cis females for congenital genitourinary anomalies like Mullerian agenesis or after gynecologic-oncologic surgery but had yet to be reported for gender-affirming vaginoplasties. The purpose of this report was to present a technique for a physiologic, intestinal, gender-affirming vaginoplasty without the disadvantages of colonic vaginoplasties. PATIENTS AND METHODS: This report presented six patients, all natal males who identified as female, undergoing robotic-assisted free jejunal flap gender-affirming vaginoplasty. Mean age was 35.8 years (range: 21-66). Mean body mass index was 33.2 kg/m2 (range: 28.0-41.0). The proximal aspect of the neovaginal canal was created intra-abdominally by elevating peritoneal flaps from the posterior bladder wall to be reflected downward into the external neovaginal canal. The jejunal flap was harvested. The greater saphenous vein was harvested to create an arteriovenous loop between the flap vessels and the recipient femoral artery in an end-to-side fashion and a branch of the femoral vein. The jejunal flap was passed intra-abdominally through the groin incision and then trans-peritoneally into the neovaginal canal. The jejunal segment was inset to the proximal peritoneal flaps and the distal inverted penoscrotal skin of the neovaginal introitus. RESULTS: Mean length of the harvest jejunal segment was 19.2 cm (range: 15-20). Mean time to ambulation, foley removal, and first vaginal dilation were 3.3 (range: 3-4), 4.0 (range: 3-5), and 4.5 days (range: 4-6), respectively. By a mean follow-up duration of 8.0 months (range: 1-14), mean vaginal depth and diameter were 7.0 and 1.3 cm (range: 1.0-1.5), respectively. Two (33.3%) patients experienced postoperative complications, including groin hematoma (n = 1, 16.7%) and reoperation for correction of dehiscence of the jejunal flap to the vaginal introitus (n = 1, 16.7%). CONCLUSION: Gender-affirming surgeons should consider a free vascularized segment of jejunum as an option to line the neovaginal canal in the correct patients.


Assuntos
Retalhos de Tecido Biológico , Jejuno , Procedimentos Cirúrgicos Robóticos , Cirurgia de Readequação Sexual , Vagina , Humanos , Feminino , Vagina/cirurgia , Vagina/anormalidades , Masculino , Jejuno/transplante , Jejuno/cirurgia , Retalhos de Tecido Biológico/transplante , Adulto , Procedimentos Cirúrgicos Robóticos/métodos , Cirurgia de Readequação Sexual/métodos , Pessoa de Meia-Idade , Idoso , Adulto Jovem , Procedimentos de Cirurgia Plástica/métodos , Resultado do Tratamento , Estudos Retrospectivos , Estruturas Criadas Cirurgicamente
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