External Delta Fixator in the Postoperative Management of Microsurgical Flaps in the Lower Limb: Experience of a Tertiary Hospital.

Objective To evaluate the use of external fixators in the delta-type kickstand configuration as an adjuvant method in the postoperative period of patients submitted to free flaps in the lower limbs. Methods A total of 17 external delta fixators were used in patients submitted to free flaps in the lower limbs. The surgical technique was performed in a standardized manner, with the distal pin located 6 cm proximally to the anastomosis, and the proximal pin, 6 cm distally to the anterior tuberosity of the tibia. Results The mean age of the sample was of 34.76 years (range: 15 to 66 years). In total, 11 men and 6 women were selected. The posterior tibial artery was used in 14 cases, and the anterior tibial artery, in 3 cases. The mean time of use of the external fixators was of 3.88 weeks. The rate of reoperation was of 17.64%; that of retail loss was of 11.76%; that of success rate was of 88.23%; and the rate of infection was of 5.9%. Conclusion The use of delta-type fixators as an adjunct method in the postoperative period is reliable; however, more studies are needed to evaluate its true role in the postoperative period.

External Delta Fixator in the Postoperative Management of Microsurgical Flaps in the Lower Limb: Experience of a Tertiary Hospital / Fixador externo tipo delta no manejo pós-operatório de retalhos microcirúrgicos no membro inferior: Experiência de um hospital terciário

Abstract Objective To evaluate the use of external fixators in the delta-type kickstand configuration as an adjuvant method in the postoperative period of patients submitted to free flaps in the lower limbs. Methods A total of 17 external delta fixators were used in patients submitted to free flaps in the lower limbs. The surgical technique was performed in a standardized manner, with the distal pin located 6 cm proximally to the anastomosis, and the proximal pin, 6 cm distally to the anterior tuberosity of the tibia. Results The mean age of the sample was of 34.76 years (range: 15 to 66 years). In total, 11 men and 6 women were selected. The posterior tibial artery was used in 14 cases, and the anterior tibial artery, in 3 cases. The mean time of use of the external fixators was of 3.88 weeks. The rate of reoperation was of 17.64%; that of retail loss was of 11.76%; that of success rate was of 88.23%; and the rate of infection was of 5.9%. Conclusion The use of delta-type fixators as an adjunct method in the postoperative period is reliable; however, more studies are needed to evaluate its true role in the postoperative period.

Resumo Objetivo Avaliar o uso de fixadores externos, na configuração kickstand do tipo delta, como método adjuvante no período pós-operatório de pacientes submetidos a retalhos livres nos membros inferiores. Métodos Ao todo, 17 fixadores externos do tipo delta foram utilizados em pacientes submetidos a retalhos livres nos membros inferiores. A técnica cirúrgica foi realizada de forma padronizada, com o pino distal localizado 6 cm proximal à anastomose, e o pino proximal, 6cm distal à tuberosidade anterior da tíbia. Resultados A idade média da amostra foi de 34,76 anos (variação: 15 a 66 anos). Foram selecionados 11 homens e 6 mulheres. Utilizou-se a artéria tibial posterior em 14 casos, e a tibial anterior, em 3 casos. O tempo médio de uso dos fixadores externos foi de 3,88 semanas. A taxa de reoperação foi de 17,64%; a de perda do retalho foi de 11,76%; a de sucesso foi de 88,23%; e a taxa de infecção foi de 5,9%. Conclusão O uso de fixadores do tipo delta como método adjuvante no pós-operatório é confiável; porém, mais estudos são necessários para avaliar seu verdadeiro papel no pós-operatório.

The cloverleaf plate and proximal humerus fractures / A placa em trevo e fraturas do úmero proximal / La placa en trébol y las fracturas del húmero proximal

Background: Fractures of the proximal humerus are challenging injuries. They have a functional impairment and can be managed by non-operative or operative methods. Surgical methods can be intramedullary nails, tension-band wiring, or plates and screws. Aim of the study: This study aims to show the outcomes of managing fractures of the proximal humerus using the trefoil plate method. Methods: Eight young patients with type 2 or 3 part proximal humerus fractures were retrospectively analyzed concerning the cloverleaf plate fixation and consolidation method. Patients with 4-part fractures were excluded. Results: We obtained 100% consolidation with a mean ROM of 109 degrees for abduction, 4.4 degrees for external rotation, and good internal rotation. Conclusion: the trefoil plate osteosynthesis method can be used in young patients with 2-or 3-part fractures of the proximal humerus(AU)

Introdução: As fraturas do úmero proximal são lesões desafiadoras. Associam-se a deficiência funcional e podem ser gerenciadas por métodos não operatórios ou operatórios. Os métodos cirúrgicos podem ser hastes intramedulares, fiação de banda de tensão ou placas e parafusos. Objetivo do estudo: Este estudo visa mostrar os resultados do tratamento das fraturas do úmero proximal pelo método da placa trifólio. Métodos: Oito pacientes jovens com fratura proximal do úmero do tipo 2 ou 3 partes foram analisados retrospectivamente quanto à fixação da placa de trevo e método de consolidação. Pacientes com fraturas em 4 partes foram excluídos. Resultados: Obtivemos 100% de consolidação com ADM média de 109graus para abdução, 4,4 graus para rotação externa e boa rotação interna. Conclusão: o método de osteossíntese de placa trifólio pode ser utilizado em pacientes jovens com fratura em 2 ou 3 partes do úmero proximal(AU)

Antecedentes: las fracturas del húmero proximal son lesiones desafiantes. Tienen un deterioro funcional y pueden ser manejados por métodos quirúrgicos o no quirúrgicos. Los métodos quirúrgicos pueden ser clavos intramedulares, alambres con bandas de tensión o placas y tornillos. Objetivo del estudio: Este estudio tiene como objetivo mostrar los resultados del tratamiento de las fracturas del húmero proximal mediante el método de la placa de trébol. Métodos: Se analizaron retrospectivamente ocho pacientes jóvenes con fracturas de húmero proximal de tipo 2 o 3 en relación con el método de fijación y consolidación con placa entrébol. Se excluyeron los pacientes con fracturas en 4 partes. Resultados: Obtuvimos una consolidación del 100% con un ROM medio de 109 grados para abducción, 4,4 grados para rotación externa y buena rotación interna. Conclusión: el método de osteosíntesis con placa de trébol se puede utilizar en pacientes jóvenes con fracturas en 2o 3 partes del húmero proximal(AU)

Resistance training improves cardiovascular autonomic control and biochemical profile of rats exposed to Western diet in the perinatal period. / Treinamento resistido melhora controle autonômico cardiovascular e perfil bioquímico de ratos expostos a dieta ocidental no período perinatal.

INTRODUCTION AND OBJECTIVES: Consumption of a Western diet during the perinatal period is associated with development of cardiovascular disease. Resistance training (RT) has been used to treat cardiovascular disorders. The aim of this work was to assess the effect of RT on cardiometabolic disorders in rats exposed to a Western diet in the perinatal period. METHODS: Female Wistar rats were fed with control or Western diet during pregnancy and lactation. The pups were divided into three groups: Control (C), Western Diet Sedentary (WDS) and Western Diet + RT (WDRT). At 60 days of age, all animals started the RT protocol (five times a week for four weeks). At the end, blood pressure was recorded for analysis of heart rate variability and baroreflex sensitivity (BRS). Blood samples were collected for biochemical analysis. RESULTS: RT reduced blood pressure and vascular sympathetic modulation and increased BRS. There were improvements in biochemical profile, with reductions in fasting blood glucose, total cholesterol and low-density lipoprotein, and an increase in high-density lipoprotein. CONCLUSION: RT led to beneficial adaptations in the cardiovascular system, mediated by changes in the mechanisms of autonomic control and biochemical profile of animals exposed to a Western diet in the perinatal period.

Percutaneous versus Cut-Down Technique for Indwelling Port Placement.

The superiority of surgical cut-down of the cephalic vein versus percutaneous catheterization of the subclavian vein for the insertion of totally implantable venous access devices (TIVADs) is debated. To compare the safety and efficacy of surgical cut-down versus percutaneous placement of TIVADs. This is a single-institution retrospective cohort study of oncologic patients who had TIVADs implanted by 14 surgeons. Primary outcomes were inability to place TIVAD by the primary approach and postoperative complications within 30 days. Multivariate analysis was performed by logistic regression. Secondary outcomes included operative time. Two hundred and forty-seven (55.9%) percutaneous and 195 (44.1%) cephalic cut-down patients were identified. The 30-day complication rate was 5.2 per cent: 14 patients (5.7%) in the percutaneous and nine (4.6%) in the cut-down group. The technique was not a significant predictor of having a 30-day complication (odds ratio = 0.820; 95% confidence interval 0.342-1.879). Implantation failure was observed in 16 percutaneous patients (6.5%) and 28 cut-down patients (14.4%) (adjusted odds ratio for cephalic vs cut-down = 2.387; 95% confidence interval 1.275-4.606). The median operative time for percutaneous patients was 46 minutes (interquartile range = 35, 59) versus 37.5 minutes (interquartile range = 30, 49) for cut-down patients(P < 0.0001). Both the percutaneous and cut-down technique are safe and effective for TIVAD implantation. Operative times were shorter and the odds of implantation failure higher for cephalic cut-down. As implantation failure is common, surgeons should familiarize themselves with both techniques.