Clinical effects of free latissimus dorsi myocutaneous flap combined with artificial dermis and split-thickness skin graft in the treatment of degloving injury in lower extremity / 中华烧伤杂志

Objective: To observe the clinical effects of free latissimus dorsi myocutaneous flap combined with artificial dermis and split-thickness skin graft in the treatment of degloving injury in lower limbs. Methods: A retrospective observational study was conducted. From December 2017 to December 2020, 8 patients with large skin and soft tissue defect caused by degloving injury in lower extremity were admitted to Ningbo No.6 Hospital, including 5 males and 3 females, aged from 39 to 75 years, with wound area of 25 cm×12 cm-61 cm×34 cm. The free latissimus dorsi myocutaneous flap with latissimus dorsi muscle in the width of 12-15 cm and flap area of 20 cm×8 cm-32 cm×8 cm was used to repair the skin and soft tissue defect of bone/tendon exposure site or functional area. The other defect was repaired with bilayer artificial dermis, and the flap donor site was sutured directly. After the artificial dermis was completely vascularized, the split-thickness skin graft from thigh was excised and extended at a ratio of 1∶2 to 1∶4 and then transplanted to repair the residual wound, and the donor site of skin graft was treated by dressing change. The survival of latissimus dorsi myocutaneous flap, artificial dermis, and split-thickness skin graft after operation was observed, the interval time between artificial dermis transplantation and split-thickness skin graft transplantation was recorded, and the healing of donor site was observed. The appearance and function of operative area were followed up. At the last outpatient follow-up, the sensory recovery of flap was evaluated by British Medical Research Council evaluation criteria, the flap function was evaluated by the comprehensive evaluation standard of flap in Operative Hand Surgery, the scar of lower limb skin graft area and thigh skin donor area was evaluated by Vancouver scar scale, and the patient's satisfaction with the curative effects was asked. Results: The latissimus dorsi myocutaneous flap survived in 6 patients, while the distal tip of latissimus dorsi myocutaneous flap was partially necrotic in 2 patient and was repaired by skin grafting after resection at split-thickness skin grafting. The artificial dermis survived in all 8 patients after transplantation. The split-thickness skin graft survived in 7 patients, while partial necrosis of the split-thickness skin graft occurred in one patient and was repaired by skin grafting again. The interval time between artificial dermis transplantation and split-thickness skin graft transplantation was 15-26 (20±5) d. The donor site of latissimus dorsi myocutaneous flap healed with linear scar after operation, and the thigh skin graft donor site healed with scar after operation. The patients were followed up for 6-18 (12.5±2.3) months. The color and elasticity of the flap were similar to those of the surrounding skin tissue, and the lower limb joint activity returned to normal. There was no increase in linear scar at the back donor site or obvious hypertrophic scar at the thigh donor site. At the last outpatient follow-up, the sensation of the flap recovered to grade S2 or S3; 3 cases were excellent, 4 cases were good, and 1 case was fair in flap function; the Vancouver scar scale score of lower limb skin graft area was 4-7 (5.2±0.9), and the Vancouver scar scale score of thigh skin donor area was 1-5 (3.4±0.8). The patients were fairly satisfied with the curative effects. Conclusions: In repairing the large skin and soft tissue defect from degloving injury in lower extremity, to cover the exposed bone/tendon or functional area with latissimus dorsi myocutaneous flap and the residual wound with artificial dermis and extended split-thickness skin graft is accompanied by harvest of small autologous flap and skin graft, good recovery effect of functional area after surgery, and good quality of healing in skin grafted area.

Tratamiento endoscópico y esclerosis de la lesión de Morel-Lavallée. A propósito de un caso / Endoscopically treatment and sclerosis of Morel-Lavallée lesion. Case report

La lesión de Morel-Lavallée es una patología cerrada de partes blandas, ocasionada por la separación traumática de la piel y tejido celular subcutáneo de la fascia muscular. Debido a su asociación con traumatismos de alta energía puede pasar desapercibida y llevar a un diagnóstico tardío. Su localización es variable, y la región lumbar es poco frecuente. Generalmente con el diagnóstico precoz y el tratamiento conservador se obtienen buenos resultados.Presentamos un reporte de caso de una paciente de sexo femenino, de veinte años, que sufrió un accidente automovilístico, con una colección localizada en región dorsolumbar diagnosticada tardíamente. Fue tratada de forma endoscópica y con la aplicación de agentes esclerosantes. Se obtuvieron buenos resultados con remisión de la colección. Nivel de Evidencia: V

The Morel-Lavallée lesion is closed soft tissue pathology, caused by the traumatic separation of the skin and subcutaneous cellular tissue of the muscular fascia. Due to its association with high-energy trauma, it can go unnoticed, generating a late diagnosis. Its location is variable, the lumbar region being rare. Generally, with early diagnosis and conservative treatment, good results are obtained.We present a case report of a twenty-year-old female patient suffering a car accident with a late-diagnosed collection located in the thoracolumbar region. She was treated endoscopically and with the application of sclerosing agents. Good results were obtained with remission of the collection. Level of Evidence: V

Uso de dermis artificial (Integra®) en reparación de lesiones traumáticas extensas de cuero cabelludo / Use of artificial dermis (INTEGRA®) in repair of extensive traumatic scalp injuries

Resumen Objetivo: Presentar 4 casos clínicos en los cuales el uso de dermis artificial Integra® resultó ser una solución segura y confiable para defectos de cuero cabelludo. Materiales y Método: Revisión de fichas clínicas de pacientes ingresados al Departamento de Cirugía Plástica y Quemados del Hospital del Trabajador de Santiago con diagnóstico de lesión traumática extensa de cuero cabelludo entre los años 2005-2013 que se resolvieron con uso de Integra®. Resultados: 4 pacientes de sexo femenino con lesión traumática que comprometían entre 70-98% de la superficie de cuero cabelludo, tiempo promedio entre aplicación de Integra® e injerto dermoepidérmico fue 18 días con 100% de cobertura; solo hubo complicaciones menores (ulceración crónica de vertex y dolor neuropático). El tiempo promedio de alta laboral fue 368 días, usando órtesis capilar. Discusión: La cobertura inmediata del tejido es fundamental para la reconstrucción exitosa del cuero cabelludo. Aparte del tejido autólogo, la dermis artificial constituye una alternativa para la reconstrucción rápida del cuero cabelludo con excelentes resultados. Conclusiones: Integra® es una solución segura y confiable para reconstruir defectos complejos del cuero cabelludo.

Aim: To present 4 clinical cases in which the use of artificial dermis (Integra®) turned out to be a safe and reliable solution for scalp defects. Materials and Method: review of clinical records of patients admitted to the Department of Plastic Surgery and Burns of the Hospital of the Worker of Santiago with a diagnosis of extensive traumatic injury of the scalp between the years 2005-2013 that were resolved with use of Integra®. Results: 4 female patients with traumatic injury that compromised between 70-95% of the surface of scalp, average time between application of integra and dermoepidermal graft was 18 days with 100% coverage; there were only minor complications (chronic vertex ulceration and neuropathic pain). The average time of high labor was 368 days, using capillary orthosis. Discussion: The immediate coverage of the tissue is essential for the successful reconstruction of the scalp. Apart from autologous tissue, the artificial dermis is an alternative for rapid reconstruction of the scalp with excellent results. Conclusions: Integra is a safe and reliable solution to reconstruct complex defects of the scalp.

Um infusor autônomo para um expansor de pele subcutâneo / An autonomous infuser for a subcutaneous skin expander

Introdução: A expansão da pele é um processo fisiológico definido como a capacidade de aumentar sua área superficial em resposta a uma tensão ou a uma dada deformação. Para realizar a cirurgia reconstrutiva, os expansores de pele são implantados sob a pele e periodicamente infiltrados com uma solução salina para fornecer um retalho extra de pele. Quando o volume interno prescrito do expansor é alcançado, a cirurgia reconstrutiva é realizada. Métodos: Foi desenvolvido um dispositivo semiautomático e portátil para facilitar um procedimento de expansão da pele. O dispositivo tem como objetivo simplificar o processo de infiltração, proporcionando mobilidade e independência para o paciente, e assegurando ao médico a qualidade e a precisão das infiltrações realizadas. O dispositivo também permite expansão contínua em pacientes hospitalizados. Resultados: Usando um código, o médico tem acesso ao menu do dispositivo e define a pressão máxima e/ou o valor máximo para cada expansor do paciente. O paciente pode realizar a infiltração e ter acesso ao controle da velocidade de infiltração, reverter ou parar a operação. Todos os dados são gravados em um SIM Card e incluem data, hora, volumes inicial e final, e pressão inicial e final de cada procedimento para cada expansor. Conclusões: O dispositivo automatiza e otimiza a expansão, de modo que o que o médico possa prescrever um limite para cada expansão, seja uma pressão máxima ou voluma infiltrado. Todos os dados são gravados, fornecendo um importante banco de dados sobre o comportamento de pele relacionado a gênero, raça, idade e local da expansão.

Introduction: Skin expansion is a physiological process defined as the ability of human skin to increase its superficial area in response to a stress or given deformation. In reconstructive surgery, skin expanders are implanted beneath the skin and periodically infiltrated with a saline solution to provide an extra flap of skin. When the prescribed internal volume of the expander is reached, reconstructive surgery is performed. Methods: A semiautomatic and portable device was developed and built to facilitate a skin expansion procedure. The device aims to simplify the infiltration process, providing mobility and independence to the patient and assuring the physician of the infiltration quality and precision. The device also enables continuous expansion in hospitalized patients. Results: Using a code, the doctor accesses the menu of the device and sets the maximum pressure and/or value for each expander of the patient. The patient can control the infiltration velocity and reverse or stop the operation. All data are recorded on a simcard and include date, time, initial and final volumes, and initial and final pressures of each procedure for each expander. Conclusions: The device motorizes and optimizes the expansion, allowing the doctor to prescribe a maximum infiltration pressure or volume. All data are recorded to provide an important database of skin behavior related to sex, race, age, and expansion site.

Effect of cilostazol in experimental model of degloving injuries in rat limbs

Abstract Purpose: To evaluate the effect of the cilostazol on the evolution of partially avulsed flaps, using experimental model of cutaneous degloving in rat limbs. Methods: A controlled and randomized experimental study was carried out in which the blood flow and the percentage of flap necrosis were evaluated. We compared the study group, which received cilostazol, and the control group, which received enteral saline solution in the postoperative period. The blood flow in the flap was evaluated through Laser Doppler flowmetry, and a planimetry using the IMAGE J® software was employed for the calculation of the area of necrosis. Results: Enteral administration of cilostazol was associated with a higher mean blood flow in all regions of the flap, with a statistically significant difference in the proximal and middle regions (p<0.001) and a lower percentage of necrotic area in the flap (p<0.001). Conclusion: Postoperative enteral administration of cilostazol increased blood flow and decreased the total area of necrosis of avulsed cutaneous flaps of rat limbs.

Transplante de grande omento para reconstrução de lesão complexa na mão / Transplant of the greater omentum for reconstruction of a complex hand injury

O grande omento, uma larga prega de peritônio, pode ser usado como retalho livre em numerosos procedimentos devido à vasta e calibrosa rede de seu pedículo vascular e à sua versatilidade para ser manipulado. Neste relato de caso, nós apresentamos um paciente vítima de complexa lesão de desenluvamento, cujo retalho de grande omento se provou como a melhor opção para a reconstrução da mão dentre as outras opções terapêuticas. O retalho de grande momento é uma opção viável para lesões complexas da mão, oferecendo boa cobertura da lesão e bom resultado funcional e estético.

The greater omentum, a large fold of the peritoneum, can be used as a free flap in numerous procedures due to the extensive network of its broad vascular pedicle and its versatility when manipulated. In this case report, we present a patient with a complex degloving injury, in which an moment flap was the best therapeutic option for reconstruction of the hand. The greater omental flap is a viable option for complex lesions of the hand, and provides good coverage of the lesion and good functional and aesthetic results.