Manejo de las fracturas maxilofaciales y sus complicaciones / Management of maxillofacial fractures and its complications

RESUMEN Antecedentes: el trauma maxilofacial corresponde a toda lesión traumática del macizo facial. Actualmente representa uno de los problemas de salud más importantes en el mundo. Nuestro objetivo es realizar un análisis de nuestra experiencia en las intervenciones realizadas en pacientes internados y sus complicaciones. Material y métodos: se realizó un estudio descriptivo, retrospectivo y observacional de 205 pacientes con fracturas maxilofaciales desde el año 2011 hasta el año 2019. Resultados: el 81,46% fueron hombres (n: 167) y el rango etario más afectado osciló entre los 21 y 30 años con el 38,54% (n:79). El accidente de tránsito 56,1% (n:115) fue el mecanismo de trauma más frecuente. Los tipos de fracturas faciales fueron: panfaciales 12,2% (n: 25), tercio superior 1,46% (n:3), tercio medio 72,2% (n:148) y tercio inferior 14,15% (n:29). Dentro del tercio superior, el 66,67% (n:2) fueron fracturas del seno frontal asociadas al hueso frontal, en el tercio medio las combinadas en un 54,73% (n:81) y en el tercio inferior, las complejas en el 34,48% (n:10). Fueron intervenidos 199 pacientes (97,07%). Solo el 11,56% (n:23) presentó alguna complicación. No se observaron complicaciones graves. Discusión: según nuestra serie, la mayoría de los pacientes fueron hombres jóvenes; la causa más frecuente, el accidente de tránsito, y el tercio medio, el más afectado, resultados estos similares a los de otros estudios publicados. El tratamiento quirúrgico fue principalmente reducción abierta y fijación con material de osteosíntesis de titanio, un procedimiento seguro y fiable, que permite restablecer la funcionalidad previa al traumatismo, con un índice muy bajo de complicaciones posoperatorias.

ABSTRACT Background: Maxillofacial trauma corresponds to all traumatic injuries affecting the facial bones. Nowadays, it represents one of the main healthcare issues worldwide. The aim of this study is to analyze our experience in the interventions performed in hospitalized and their complications. Material and methods: We performed a retrospective and observational study of 205 patients with maxillofacial fractures from 2011 to 2019. Results: 81.46% were men (n = 167) and 38.54% (n = 79) of the patients were between 21 and 30 years of age. Traffic collision was the most common mechanism of trauma (56,1%, n = 115). The types of facial fractures were panfacial (12.2%; n = 25), of the upper-third (1.43%; n = 3), of the middle-third (72.2%; n = 148) and of the lower third (14.15%; n = 29). In the upper third of the face frontal sinus fractures associated with the frontal bone were the most common (66.67%; n =2); in the middle-third combined fractures were most prevalent (54.73%; n = 81) while complex fractures were most frequent in the lower third (34,48%; n = 10). One-hundred and ninety-one patients were operated on (97.07%). Complications occurred in only 11.56% (n = 23) and were not serious. Discusion: In our series, most patients were young men, traffic collisions were the most common cause of trauma, and the middle third of the face was the most affected region. These results are similar to our publications. Surgical management, mostly by open reduction and fixation with titanium-based osteosynthesis material, is an effective, safe and reliable procedure, which allows the restoration of pre-trauma function, with very low rate of postoperative complications.

Remoção de corpo estranho impactado em região maxilofacial / Removal of impacted foreign body in maxillofacial region

Traumas na região da face são comuns devido a sua topografia e à grande exposição do local. As lesões na região maxilofacial são normalmente causadas devido a traumas por acidentes de trânsito, agressão física, acidentes cotidianos como queda da própria altura e de nível. O objetivo deste trabalho é relatar um caso clínico de trauma facial com a presença de corpo estranho impactado na face, bem como o tratamento cirúrgico empregado. Paciente do sexo feminino, 17 anos, foi regulada para o Hospital Geral Cleristón Andrade com histórico de queda de cavalo, cursando com fragmento de madeira (galho de arbusto) tranfixado em região maxilofacial. A paciente foi encaminhada ao centro cirúrgico para a remoção do galho de arbusto transfixado. O procedimento foi rápido, e sua remoção se deu por meio do movimento contrário ao mecanismo de trauma. Lesão como esta possui aspectos singulares e devem ser avaliados multidisciplinarmente na emergência. A remoção desses objetos deve ser realizada de forma a preservar as estruturas dentro do possível, levando em consideração também os fatores estéticos e funcionais envolvidos(AU)

Traumas in the face region are common due to its topography and the great exposure of the place. Injuries in the maxillofacial region are usually caused due to trauma from traffic accidents, physical aggression, everyday accidents such as falling from height and level. The aim of this paper is to report a clinical case of facial trauma with the presence of a foreign body impacted on the face, as well as the surgical treatment used. A 17-year-old female patient was treated at the Cleristón Andrade General Hospital with a history of falling from a horse, taking a wood fragment (shrub branch) transfixed in the maxillofacial region. The patient was referred to the operating room for removal of the transfixed bush branch. The procedure was quick, and its removal took place through a movement contrary to the trauma mechanism. Injuries like this have unique aspects and must be evaluated multidisciplinary in an emergency. The removal of these objects must be carried out in order to preserve the structures as much as possible, also taking into account the aesthetic and functional factors involved(AU)

Retiro de elementos de osteosíntesis en trauma maxilofacial / Osteosynthesis elements removal in maxillofacial trauma

Resumen Objetivo: Analizar la prevalencia y los factores en la remoción de elementos de osteosíntesis (OTS) de pacientes tratados quirúrgicamente debido a fracturas maxilofaciales. Materiales y Método: Estudio retrospectivo descriptivo, donde fueron incluidos todos los pacientes con diagnóstico de fractura maxilofacial y tratados mediante reducción abierta y fijación interna rígida en un intervalo de 10 años, en el Servicio de Cirugía Oral y Maxilofacial en el Hospital Clínico Mutual de Seguridad (HCMS). Resultados: En un total de 807 pacientes intervenidos, con un rango etario entre 22-66 años, fueron utilizados 2.421 OTS. Entre ellos, 58 pacientes (7,2%) fueron sometidos a un segundo procedimiento quirúrgico, retirándose un total de 129 OTS (5,3%). La principal causa de retiro fue infección (41,1%), comúnmente de carácter tardío. El tercio inferior facial fue el más afectado, específicamente, la zona parasinfisiaria. El 39% fue retirado antes de los 12 meses de posicionados. Conclusiones: El retiro de OTS, posterior a trauma maxilofacial tiene una baja prevalencia. El sitio más afectado es el hueso mandibular y la mayoría se retira dentro de los primeros 12-24 meses. La etiología es variable, sin embargo, la infección se mantiene como una de las principales. Los hallazgos sugieren que no sería recomendable realizar este procedimiento de forma universal para todos los pacientes.

Aim: To analyse the prevalence and factors regarding to osteosynthesis elements (OTS) removal from patients surgically treated due to maxillofacial fractures. Materials and Method: Retrospective study in which all patients with diagnosis of maxillofacial fractures and treated with open reduction and internal rigid fixation were included, in an interval of 10 years, in the Maxillofacial Surgery Service of HCMS. Results: In 807 surgically treated patients, with an age between 22-66 years, 2.421 OTS were used. Among them, 58 patients (7.2%) underwent a second surgical procedure, with a total of 129 OTS removed (5.3%). The main cause of removal was infection (41.1%), commonly of a chronic nature. The lower third of the face was the most affected, specifically, the parasymphysis region. 39% of OTS were withdrawn before 12 months. Conclusions: OTS removal after maxillofacial trauma has a low prevalence, the most affected site is the mandibular bone, within the first 12-24 months. The aetiology is variable, however, infection remains one of the main. The findings suggest that it would not be advisable to perform this procedure universally for all patients.

As marcas da violência por arma de fogo em face / The marks of gunshot wounds to the face

Resumo Introdução: Este artigo aborda a ocorrência de agravos à saúde em virtude de ferimentos na face por arma de fogo, entre os policiais militares, na Região Metropolitana do Estado do Rio de Janeiro, operados pela Clínica de Cirurgia e Traumatologia Bucomaxilofacial do Hospital Central da Polícia Militar. Objetivo: Identificar o perfil dos pacientes operados em decorrência de ferimentos na face por arma de fogo, a distribuição anatômica das fraturas maxilofaciais, as sequelas e complicações encontradas, as especialidades em saúde envolvidas na reabilitação desses pacientes, além de discutir sobre as repercussões sociais, emocionais e relativas ao desempenho do trabalho entre esses sujeitos. Método: Foi feito um estudo epidemiológico retrospectivo a partir de dados secundários referentes aos policiais militares operados no Hospital Central da Polícia Militar em decorrência de ferimentos por arma de fogo em face, de junho de 2003 a dezembro de 2017. Resultado: Durante o período estudado foram feitas 778 cirurgias em centro cirúrgico pelo serviço de Clínica de Cirurgia e Traumatologia Bucomaxilofacial no Hospital Central da Polícia Militar, 186 em decorrência de ferimentos por arma de fogo (23,9%). Todos os pacientes eram do sexo masculino e com média de 34,7 anos. A perda de segmento ósseo foi a sequela mais encontrada. O comprometimento estético facial e os relatos de insônia foram as repercussões tardias de impacto na saúde e no convívio social mais encontradas. Sobre as repercussões laborais do ferimento sofrido, o tempo médio de afastamento por licença de saúde para tratamento dos ferimentos maxilofaciais foi de 11,7 meses. Conclusão: O tratamento de pacientes vítimas de ferimentos por arma de fogo em face demanda múltiplas intervenções cirúrgicas e o envolvimento de diferentes especialidades da saúde para sua reabilitação. São necessários mais estudos que analisem qualitativamente o impacto desse tipo de traumatismo em face para a vida dos pacientes e seus desdobramentos sociais.

Effectiveness of simplified predictive intubation difficulty score and thyromental height in head and neck surgeries: an observational study / Eficácia do escore simplificado preditivo de dificuldade de intubação e da altura tiromentoniana em cirurgias de cabeça e pescoço: estudo observacional

Abstract Background and objectives: In this study, we aimed to investigate the predictive value of different airway assessment tools, including parts of the Simplified Predictive Intubation Difficulty Score (SPIDS), the SPIDS itself and the Thyromental Height Test (TMHT), in intubations defined as difficult by the Intubation Difficulty Score (IDS) in a group of patients who have head and neck pathologies. Methods: One hundred fifty-three patients who underwent head and neck surgeries were included in the study. The Modified Mallampati Test (MMT) result, Thyromental Distance (TMD), Ratio of the Height/Thyromental Distance (RHTMD), TMHT, maximum range of head and neck motion and mouth opening were measured. The SPIDSs were calculated, and the IDSs were determined. Results: A total of 25.4% of the patients had difficult intubations. SPIDS scores >10 had 86.27% sensitivity, 71.57% specificity and 91.2% Negative Predictive Value (NPV). The results of the Receiver Operating Curve (ROC) analysis for the airway screening tests and SPIDS revealed that the SPIDS had the highest area under the curve; however, it was statistically similar to other tests, except for the MMT. Conclusions: The current study demonstrates the practical use of the SPIDS in predicting intubation difficulty in patients with head and neck pathologies. The performance of the SPIDS in predicting airway difficulty was found to be as efficient as those of the other tests evaluated in this study. The SPIDS may be considered a comprehensive, detailed tool for predicting airway difficulty.

Resumo Justificativa e objetivos: Neste estudo, avaliamos o valor preditivo de diferentes ferramentas de avaliação das vias aéreas, incluindo componentes do Escore Simplificado Preditivo de Intubação Difícil (ESPID), o próprio ESPID e a Medida da Altura Tireomentoniana (MATM), em intubações definidas como difícies pelo Escore de Dificuldade de Intubação (EDI) em um grupo de pacientes com patologia de cabeça e pescoço. Método: Incluímos no estudo 153 pacientes submetidos a cirurgia de cabeça e pescoço. Coletamos os resultados do Teste de Mallampati Modificado (TMM), Distância Tireomentoniana (DTM), Razão Altura/Distância Tireomentoniana (RADTM), MATM, amplitude máxima de movimentação da cabeça e pescoço e da abertura da boca. Os ESPIDs foram calculados e os EDIs, determinados. Resultados: Observamos intubação difícil em 25,4% dos pacientes. Os escores de ESPID > 10 tiveram sensibilidade de 86,27%, especificidade de 71,57% e valor preditivo negativo de 91,2% (VPN). O resultado da análise da curva de operação do receptor (curva ROC) para os testes de avaliação das vias aéreas e ESPID mostrou que o ESPID tinha a maior área sob a curva; no entanto, foi estatisticamente semelhante a outros testes, exceto para o TMM. Conclusões: O presente estudo demonstra o uso prático do ESPID na previsão da dificuldade de intubação em pacientes com patologia de cabeça e pescoço. O desempenho do ESPID na predição de via aérea difícil mostrou-se tão eficiente quanto os demais testes avaliados neste estudo. O ESPID pode ser considerado ferramenta abrangente e detalhada para prever via aérea difícil.

Epidemiología del trauma maxilofacial, tratado quirúrgicamente en el Hospital de Urgencia Asistencia Pública: 3 años de revisión / Epidemiology of maxillofacial trauma, surgically treated in the Emergency Hospital Public Assistance: 3 years of revision

Resumen Introducción: El trauma maxilofacial (TMF) constituye un problema de relevancia en los centros hospitalarios de alta complejidad. Objetivo: Evidenciar y actualizar la epidemiología del trauma maxilofacial de resolución quirúrgica bajo anestesia general, en pabellón central tratado en el Hospital de Urgencia Asistencia Pública durante el período comprendido entre diciembre de 2014 a diciembre de 2017 y compararla con la realidad epidemiológica de otros centros hospitalarios de alta complejidad en Chile y en el extranjero. Materiales y Método: Se realizó un estudio retrospectivo en el que se analizaron los protocolos operatorios de los pacientes intervenidos quirúrgicamente por trauma maxilofacial, en pabellón central, bajo anestesia general, en un período de 37 meses. Las variables analizadas fueron diagnóstico, edad, género, tercio facial y zona anatómica afectada. Resultados: Se realizaron 127 procedimientos quirúrgicos, para resolver 259 fracturas. La edad promedio de los pacientes intervenidos fue de 33 años, con predominio del género masculino (85,8%); el tercio inferior fue el más afectado (77,2%), específicamente en la zona parasinfisiaria mandibular (22,4%). Discusión: Los resultados expuestos concuerdan con estudios realizados internacionalmente, pero tiene discordancia en relación a la zona anatómica más afectada al comparalo con los otros centros que analizaron su epidemiología. Conclusión: Resulta necesario continuar la investigación epidemiológica de estas patologías y unificar criterios de diagnóstico y tratamiento para poder establecer políticas de prevención y tratamiento eficientes en relación a cada servicio y en conjunto a nivel de salud pública.

Introduction: Maxillofacial trauma (MFT) is a relevant problem in highly complex hospital centers. Aim: To show and update the epidemiology of the maxillofacial trauma of surgical resolution under general anesthesia, in a major operating room, treated in the Emergency Hospital Public Assistance during the period from December 2014 to December 2017 and to compare it with the epidemiological reality of other high complexity hospital centers in Chile and abroad. Materials and Method: A retrospective study was carried out and the surgical protocols of the patients operated for maxillofacial trauma, in a major operating room, under general anesthesia, in a period of 37 months, were analyzed. The variables considered were diagnosis, age, gender, facial third and affected anatomic area. Results: 127 surgical procedures were performed, for the resolution of 259 fractures. The average age of the operated patients was 33 years, with predominance of the male gender (85.8%), the lower third was the most affected (77.2%), specifically in the parasymphysis area (22.4%). Discussion: The exposed results agree with studies carried out internationally, but it has discordance in relation to the most affected anatomical area at national level comparing it with the other hospitals that analyzed its epidemiology. Conclusion: It is necessary to continue the epidemiological investigation of these pathologies and to unify diagnostic and treatment criteria in order to establish efficient prevention and treatment policies in relation to each service and jointly at the level of public health.

Enfoque clinicoterapéutico de las urgencias bucofaciales en pacientes atendidos en una institución de segundo nivel / Clinical and therapeutical approach of the oral and facial emergencies in patients assisted in a second level institution

Se realizó un estudio descriptivo y transversal de 9 932 pacientes, quienes presentaron urgencias bucofaciales, atendidos en el Cuerpo de Guardia de Cirugía Maxilofacial del Hospital Provincial Docente Clinicoquirúrgico Saturnino Lora Torres de Santiago de Cuba, desde enero del 2006 hasta diciembre del 2010, a fin de caracterizarles desde los puntos de vista clínico y terapéutico. Se halló una elevada incidencia de afectados con procesos patológicos agudos que constituyeron urgencias en el Servicio de Cirugía Maxilofacial, aunque solo 3,3 por ciento de ellos fueron hospitalizados. Hubo un predominio de pacientes con traumatismos de partes blandas, procesos inflamatorios sépticos agudos y procesos dolorosos de cabeza y cuello. La mayoría de los procederes quirúrgicos y ortopédicos se efectuaron en el cuerpo de guardia antes citado, lo cual pertenece a la categoría de cirugía menor y bajo régimen de atención ambulatoria

A descriptive and cross-sectional study of 9 932 patients who presented oral and facial emergencies, assisted in the Maxillofacial Surgery emergency room of Saturnino Lora Torres Teaching Clinical Surgical Provincial Hospital in Santiago de Cuba, was carried out from January, 2006 to December, 2010, in order to characterize them from the clinical and therapeutical points of view. It was found a high incidence of affected patients with acute pathological processes that constituted emergencies in the Maxillofacial Surgery Service, although just 3.3 percent of them were hospitalized. There was a prevalence of patients with soft parts trauma, acute septic inflammatory processes and painful processes of head and neck. Most of the surgical and orthopedic procedures were carried out in the emergency room above mentioned, which belong to the category of minor surgery and under ambulatory care

Epidemiología de la patología quirúrgica que afecta al territorio maxilofacial, tratada bajo anestesia general en el Hospital de Urgencia Asistencia Pública entre 2014 y 2016 / Epidemiology of surgical pathology affecting the maxillofacial area, treated under general anesthesia at the Emergency Hospital Public Assistance between 2014 and 2016

Objetivo: Presentar la experiencia de la especialidad en cirugía y traumatología bucal y maxilofacial en el Hospital de Urgencia Asistencia Pública, a través de la epidemiología de los tratamientos quirúrgicos realizados en pabellón central, bajo anestesia general, durante el período comprendido entre noviembre del 2014 y julio del 2016. Material y métodos: Se realizó un estudio retrospectivo en el que se analizaron los protocolos operatorios de los pacientes intervenidos durante el período. Se recopiló información de la base de datos del pabellón central sobre el diagnóstico, la edad, el sexo y el tipo de procedimiento quirúrgico. Se incluyeron 125 procedimientos quirúrgicos realizados en 109 pacientes. Resultados: La edad promedio de los pacientes intervenidos fue de 38 años, con preponderancia del sexo masculino (70,6%). El 50,4% de los procedimientos quirúrgicos correspondieron a traumatismos en el territorio maxilofacial, de los cuales la fractura mandibular fue la lesión más frecuente (68,3%). El 46,4% de los procedimientos correspondieron a infecciones en el territorio maxilofacial, en los cuales la localización más frecuente fue el espacio anatómico submandibular (25,8%). El resto de los procedimientos se relacionó con otro tipo de diagnósticos (3,2%). Discusión: En general los resultados concuerdan con estudios similares realizados en hospitales de atención de urgencia. Conclusión: Dentro de las patologías de urgencia del territorio maxilofacial, las lesiones traumáticas e infecciones son las que con mayor frecuencia requieren de cirugía mayor bajo anestesia general. Los pacientes intervenidos con cirugía bajo anestesia general en pabellón central son principalmente hombres, siendo las fracturas mandibulares y la infección del espacio submandibular las lesiones más frecuentes en cada tipo de patología.

Objective: To determine the experience of the specialty in Oral and Maxillofacial Surgery and Traumatology at the Hospital Emergency Assistance Publique, through epidemiology of surgical treatments carried out in major operating room, under general anesthesia during the period between November 2014 and July 2016. Material and methods: A retrospective study where the operative protocols of patients operated during the period analyzed was performed. Database information from major operating room for diagnosis, age, sex and type of surgical procedures was collected. 125 surgical procedures performed in 109 patients were included. Results: The average age of the operated patients was 38 years with a preponderance of males (70.6%); 50.4% of surgical procedures were for injuries in the maxillofacial area, where the mandibular fracture was the most common lesion (68.3%); 46.4% of the procedures were for infections in maxillofacial area, where the most common location was the submandibular anatomical space (25.8%). The rest of the procedures related to other diseases (3.2%). Discussion: In general the results are consistent with similar studies in emergency care hospitals. Conclusion: Within the pathologies of urgency of the maxillofacial territory, traumatic injuries and infections are those that most frequently require major surgery under general anesthesia. Patients undergoing surgery under general anesthesia in major operating room are mainly men, with mandibular fractures and submandibular space infections being the most frequent lesions in each type of pathology.

Retrograde submental intubation assisted with direct video laryngoscopy in maxillofacial trauma: technical note and case report / Intubación submentoniana retrógrada asistida con videolaringoscopía en trauma maxilofacial: nota técnica y reporte de caso

The management of a difficult airway is one of the biggest challenges of perioperative anesthesia management. The maxillofacial trauma can cause serious disturbances of the soft and hard tissues of the anatomical components of the upper airway and often with little external evidence of deformity. The submental intubation is a procedure that was reported to avoid tracheostomy and allow for the concomitant restoration of occlusion and reduction of facial fractures in patients with craniomaxillofacial trauma ineligibles for nasotracheal intubation. We described a modification of the original technique by performing a retrograde submental intubation assisted by direct laryngoscope video in a maxillofacial trauma patient with restricted mouth opening. In addition, the surgical anatomy of the technique is detailed described.

El manejo de una vía aérea difícil es uno de los mayores desafíos del manejo anestésico perioperatorio. El trauma maxilofacial puede causar serias alteraciones a los tejidos blandos y duros de la vía aérea superior, y muchas veces con pequeña evidencia externa de deformidad. La intubación submentoniana es un procedimiento que fue reportado para evitar la traqueostomía y permitir la concomitante restauración de la oclusión para la reducción de fracturas faciales en pacientes donde la intubación nasotraqueal está contraindicada. Describimos una modificación de la técnica original, realizando una intubación submentoniana retrógrada asistida con videolaringoscopio en un paciente de trauma maxilofacial con apertura de la cavidad disminuida. Adicionalmente se describe detalladamente la anatomía quirúrgica de la técnica.

Estudio descriptivo del traumatismo máxilofacial en el Hospital de La Serena entre los años 2004-2011 / Maxillofacial injuries: experience in 343 patients

Background: Oral and Maxillofacial injuries are an important problem at public health services, due to the anatomical complexity of the involved areas and committed aesthetic factor. Aim: To determine and analyze the etiology, frequency, location and treatment of patients with maxillofacial trauma at a Chilean regional Hospital between 2004 and 2011. Material and Methods: Review of medical records of 343 patients aged 0 to 87 years (258 males) treated for maxillofacial trauma. Results: Physical aggression was the main etiologic factor in 35 percent of patients, followed by falls and sports injuries in 27 and 16 percent of cases respectively. The most commonly damaged structure was the dentoalveolar area in 43 percent of patients, followed by mandibular and malar lesions in 31 and 12 percent of cases. Twenty two percent of patients required an open reduction with osteosynthesis as treatment. Discussion: Maxillofacial trauma was more common in males. The main etiologic factor was physical aggression and the most affected damaged structure was the dentoalveolar area. Osteosynthesis was required for treatment in 22 percent of cases...

Introducción: Las lesiones máxilofaciales son un problema de relevancia dentro de los servicios hospitalarios dada la complejidad anatómica de las zonas que involucra y el factor estético que compromete. Objetivo: Determinar y analizar la etiología, frecuencia, localización y tratamientos de pacientes con traumatismo máxilofacial en un hospital regional de Chile entre los años 2004-2011. Metodología: En un estudio descriptivo de serie de casos se evaluó registros de 343 pacientes diagnosticados y tratados por trauma máxilofacial. Los datos obtenidos fueron ingresados y analizados en el programa Epi Info y se agruparon en tablas de distribución y gráficos. Resultados: El promedio de edad fue de 27 años y la relación hombre-mujer de 3: 1. L as agresiones se presentaron como la principal causa (3 5 por ciento) y las estructuras más afectadas fueron las dentoalveolares (43 por ciento). Discusión: La mayor proporción de traumatismos máxilofaciales se observó en las primeras décadas de vida y fueron más frecuentes en hombres. El principal factor etiológico fue la agresión y la estructura más dañada, la dentoalveolar, seguida por fracturas mandibulares y cigomáticas. El tratamiento de elección fue la reducción abierta y osteosíntesis con placas y tornillos...

Evaluation of the use of biomodels in sequelae of maxillofacial trauma / Evaluación de la utilización de biomodelo de secuelas de traumatismo maxilofacial

The use of rapid prototyping technology in Oral and Maxillofacial Surgery has been increasing in the last decade, allowing the management of biomodels from medical image processing as computed tomography in order to obtain a three dimensional model with the same geometric characteristics as the virtual one. The aim of this study is to present the use of biomodels for treatment of maxillofacial trauma sequelae with evaluation of clinical records in a period that varies from January 2000 to December 2010. For diagnosis and surgical planning of maxillofacial sequelae in this period, some 15 prototypes were used, allowing us to determine the treatment planning with more accuracy and to save operating room time.

El uso de tecnología de prototipado rápido en Cirugía Oral y Maxilofacial se ha incrementado en la última década, lo que permite la gestión de los biomodelos de procesamiento de imágenes médicas, como tomografía computarizada para obtener un modelo tridimensional con las mismas características geométricas del virtual. El objetivo de este estudio es presentar el uso de biomodelos para el tratamiento de las secuelas de un traumatismo maxilofacial con la evaluación de las historias clínicas en un período que varía entre enero de 2000 a diciembre de 2010. Para el diagnóstico y la planificación de la cirugía maxilofacial de las secuelas en este período, 15 prototipos fueron utilizados, lo que permite determinar la planificación del tratamiento con más precisión y para ahorrar tiempo de quirófano.

The importance of early diagnosis of large lipomas in the maxillofacial region / Importancia del diagnóstico precoz de los lipomas de células grandes en la región maxilofacial

Lipoma is a benign tumor composed of proliferation of mature fat cells interspersed by fibrous connective tissue, blood vessels and muscles, delimited by a thin capsule. Although it represents a mesenchymal neoplasm most common human body, are rare occurrences in the oral cavity. Presents clinical and histopathological variables that do not alter their prognosis. The pathogenesis is still uncertain, although some authors consider heredity and endocrine disorders as possible causes. Occurs with greater prevalence in obese people, although their metabolism is completely independent of the normal body lipid metabolism. The clinical diagnosis of oral lipoma is the view of a nodular mass, soft, asymptomatic, flat surface, without ulceration and limited growth. The continuing growth of the lesion may cause difficulty in chewing, speech, dental adaptation and change in facial aesthetics of the patient, requiring surgical excision of the lesion. The final diagnosis is by histopathological examination. Aims to present a literature review and clinical cases of a retrospective study of 61 cases of lipomas diagnosed in pathological service between 1978 and 2009, among the 10 573 reports during that same period. It emphasizes the special cases of large lipomas of the maxillofacial region, and the importance of early diagnosis of these lesions. A dental surgeon should be able to diagnose lipomas in an early stage in the maxillofacial area avoiding a massive growth of these lesions(AU)

El lipoma es un tumor benigno compuesto por la proliferación de células adiposas maduras entremezcladas con el tejido conectivo fibroso, los vasos sanguíneos y/o músculos, delimitado por una fina cápsula. Aunque representa un neoplasma del mesénquima muy común del cuerpo humano, tiene raras ocurrencias en la cavidad bucal. Presenta variables clínicas e histopatológicas que no alteran su pronóstico. La patogénesis sigue siendo incierta aunque algunos autores consideran que los trastornos hereditarios y endocrinos son causas posibles. Ocurre con una mayor prevalencia en las personas obesas, aunque su metabolismo es totalmente independiente del metabolismo normal de los lípidos corporales. El diagnóstico clínico del lipoma bucal está relacionado con una masa nodular, blanda, asintomática, de superficie plana, sin ulceración y de crecimiento limitado. El continuo crecimiento de la lesión pudiera crear dificultad al masticar, al hablar, en la adaptación dental y cambio en la estética facial del paciente requiriendo la escisión de la lesión. Presentar una revisión de la literatura y de los casos clínicos de un estudio retrospectivo de 61 casos de lipomas diagnosticados en el servicio de patología entre 1978 y 2009 entre los 10 573 informes hechos durante ese mismo período. Se enfatizan los casos especiales de lipomas grandes de la región maxilofacial y la importancia del diagnóstico temprano de estas lesiones. Un cirujano dental debe ser capaz de diagnosticar los lipomas en una etapa temprana en el área maxilofacial para evitar un crecimiento masivo de estas lesiones(AU)

Airway management in patients with maxillofacial trauma - a retrospective study of 177 cases

Airway management in maxillofacial injuries presents with a unique set of problems. Compromised airway is still a challenge to the anesthesiologist in spite of all modalities available. Maxillofacial injuries are the result of high-velocity trauma arising from road traffic accidents, sport injuries, falls and gunshot wounds. Any flaw in airway management may lead to grave morbidity and mortality in prehospital or hospital settings and as well as for reconstruction of fractures subsequently. One hundred and seventy-seven patients of maxillofacial injuries, operated over a period of one and half years during July 2008 to December 2009 in AI-Nahdha hospital were reviewed. All patients were reviewed in depth with age related type of injury, etiology and techniques of difficult airway management. The major etiology of injuries were road traffic accidents [67%] followed by sport [15%] and fall [15%]. Majority of patients were young in the age group of 11-30 years [71%]. Fracture mandible [53%] was the most common injury, followed by fracture maxilla [21%], fracture zygoma [19%] and pan-facial fractures [6%]. Maxillofacial injuries compromise mask ventilation and difficult airway due to facial fractures, tissue edema and deranged anatomy. Shared airway with the surgeon needs special attention due to restrictions imposed during surgery. Several methods available for securing the airway, both decision-making and performance, are important in such circumstances. Airway secured by nasal intubation with direct visualization of vocal cords was the most common [57%], followed by oral intubation [17%]. Other methods like tracheostomy and blind nasal intubation was avoided by fiberoptic bronchoscopic nasal intubation in 26% of patients. The results of this study indicated that surgically securing the airway by tracheostomy should be revised compared to other available methods. In the era of rigid fixation of fractures and the possibility of leaving the patient without wiring an open mouth and alternative techniques like fiberoptic bronchoscopic intubation, it is unnecessary to carry out tracheostomy for securing the airway as frequently as in the past

Aspectos epidemiológicos dos pacientes com traumas maxilofaciais operados no Hospital Geral de Blumenau, SC de 2004 a 2009 / Epidemiological characteristics of trauma patients maxillofacial surgery at the Hospital Geral de Blumenau SC from 2004 to 2009

Introdução: Acidentes envolvendo a face apresentam incidência crescente nas últimas quatro décadas. A literatura médica faz referência ao aumento das colisões automobilísticas e à violência urbana, como as principais causas desses traumatismos, principalmente em indivíduos jovens. Objetivo: Levantar o perfil epidemiológico de 222 pacientes de fraturas faciais do Hospital Santo Antônio de 2004 a 2009. Método: Estudo de casos com análise retrospectiva de prontuários de pacientes com diagnóstico de fratura facial. Foram consideradas as variáveis gênero, idade, profissão, grau de escolaridade, procedência, local e número de ossos envolvidos, etiologia e tempo médio de internação dos pacientes. Resultados: O sexo masculino predominou com 178 casos (80,1%), a média de idade foi de 29,6 anos, 86 (38,73%) tinham emprego fixo. Os solteiros 178 casos (80,18%). Primeiro grau completo predominou entre os pacientes, 74 (33,34%), e a maioria residia na cidade de Blumenau, 175 (78,82%). A agressão física foi a principal responsável pela indicação cirúrgica com 79 casos (35,58%), com envolvimento de um osso em 193 casos (86,9%). O principal osso acometido foi a mandíbula com 90 casos (40,54%). A média de tempo de internação foi de 2,5 dias. Conclusão: O perfil epidemiológico dos 222 pacientes é: individuo masculino, na faixa etária de 20 a 29 anos, solteiro, com baixa escolaridade e empregado. A etiologia prevalente foi a agressão, com envolvimento de um osso, sendo a mandíbula o osso mais acometido.

Introduction: Accidents involving the face have increased incidence in the last four decades. The medical literature refers to the increase in motor vehicle collisions and urban violence as the major causes of injuries, especially in young individuals. Objective: Raise the epidemiological profile of 222 patients with facial fractures at the Hospital Santo Antonio from 2004 to 2009. Method: Case study with retrospective analysis of records of patients diagnosed with facial fractures. Several variables were considered: gender, age, occupation, education level, origin, location and number of bones involved, etiology, and mean hospital stay of patients. Results: The male sex predominated with 178 cases (80.1%), the average age was 29.6 years, 86 (38.73%) had a steady job. Unmarried 178 cases (80.18%). Primary school predominated among the patients, 74 (33.34%), and most live in the city of Blumenau, 175 (78.82%). The assault was primarily responsible for the surgical indication in 79 cases (35.58%), involving a bone in 193 cases (86.9%). The main bone involved was the mandible in 90 cases (40.54%). The average length of stay was 2.5 days. Conclusions: The epidemiological profile of 222 patients is an individual male, aged 20-29 years old, unmarried, low education and employee. The most prevalent etiology was assault, involving a bone, the mandible being the most involved bone.

Estudio descriptivo de los accesos quirúrgicos utilizados en el tratamiento de fracturas del complejo zigomático orbitario / Descriptive study of surgical approach for zygomatic complex fractures

El objetivo del presente estudio fue evaluar los accesos quirúrgicos utilizados para el abordaje del complejo zigomático orbitario (CZO) y arco zigomático (AZ). Fue diseñado un estudio de tipo retrospectivo, evaluando las fichas clínicas de pacientes atendidos entre el 1 de Abril del año 1999 y el 31 de Diciembre del año 2008. Fueron estudiadas variables sociodemográficas y características de la fractura, tales como presencia de más de una fractura facial y desplazamiento del fragmento óseo. Se realizo un estudio descriptivo de los diferentes accesos quirúrgicos utilizados y cuando fue necesario se estudió la asociación estadística con la prueba chi-cuadrado para variables nominales, estableciendo significancia si p<0,05. Ciento cincuenta y tres pacientes fueron sometidos a tratamiento quirúrgico de fractura de CZO con 251 accesos quirúrgicos. El acceso más efectuado fue el intrabucal, seguido del acceso subciliar y supraciliar. Siempre existió mayor utilización de accesos para pilar zigomaticomaxilar, seguidos por accesos para reborde infraorbitario y sutura frontozigomática, con pocas diferencias entre ellos. No fue posible encontrar asociación estadística entre las variables estudiadas y la cantidad de accesos para el tratamiento quirúrgico de fracturas de CZO. Los accesos quirúrgicos deben responder a las necesidades individuales de cada caso, intentando obtener indicaciones precisas, más que preferencias individuales de cada cirujano.

The aim of this research was to evaluated the surgical approach for zygomatic complex and zygomatic arch fracture. Was doing a retrospective study, evaluating clinical charts of patients with treatment between April 1 of 1999 and December 31, 2008. Were study sociodemographic variables, type and quantitative fracture and displacement of osseous fragment. A descriptive analysis was do it surgical approach used and when was necessary, realized a statistical analysis with Chi-Square test for nominal variables, with p<0.05 for significant statistic. One hundred fifty tree patients was surgically treated for ZC fracture, doing 251 surgical approach. More realized approach was intraoral, follow for subciliary and superciliary approach. Always exist more approach for zygomatimaxillary pillar, follow to infraorbitary rim and frontozygomatic suture, with a little difference. Was not possible show statistic association between de variables and the quantity of surgical approach for ZC fractures. Surgical approach was response to individual necessity, obtained certain indications more than surgeon preferences.

Analysis of 185 maxillofacial fractures in the state of Santa Catarina, Brazil

A retrospective study was performed to assess maxillofacial fractures in patients treated at a public hospital from 2002 to 2006. The data collected included age, gender, etiology, type of injury, treatment modalities and period of treatment. Causes were grouped into seven categories: road traffic collisions, sports accidents, occupational accidents, gunshot fractures, falls, violence and other causes. The analyses involved descriptive statistics, the Chi-squared Test and the Fisher Exact Test. Records from 132 patients sustaining 185 maxillofacial fractures were evaluated. The mandible (54.6 percent) was the most commonly fractured bone in the facial skeleton, followed by the zygoma (27.6 percent). The mean age of the patients was 37.7 years, and the male:female ratio was 4.3:1. Most fractures occurred in adults with ages ranging from 18 to 39 years. A significant statistical relation was found between the age and the etiology of the trauma (p < 0.05), and between the number of fractured sites and the age of the patient (p < 0.05). Considering the age groups, accidents were the most frequent cause of maxillofacial fractures in the age group between 18 to 39 years, and interpersonal violence was the most frequent cause of maxillofacial fractures in the age group between 40 to 59 years. Treatment was performed on the same day as the diagnosis in 44.7 percent of the patients. Open surgery with internal stable fixation was indicated for most of the patients. Facial fractures occurred primarily among men under 30 years of age, and the most common sites of fractures in the face were the mandible and the zygomatic complex. Traffic road collisions were the main etiologic factor associated with maxillofacial trauma.

Oral maxillofacial fractures seen at a ugandan tertiary hospital: a six-month prospective study

AIM: To investigate the epidemiological characteristics of maxillofacial fractures and associated fractures in patients seen in the Oral Surgery Unit of Mulago Hospital, Kampala, Uganda. METHODOLOGY: A six-month prospective study was conducted. Data collected included socio-demographic factors, type and etiology of injury, additional fractures, and post-surgery complications. RESULTS: One hundred thirty-two (132) cases ranging from 5-70 yrs of age were reported, with a male: female ratio of 7.7:1. The 21-30 yr age group was the largest, comprising 51.51 percent of cases (n=68). Road traffic accidents contributed to 56.06 percent (n=74) of fractures. In total, 66 percent of the sample (n=87) suffered isolated mandibular fractures. Symphyseal and maxillary fractures were the most common mandibular and mid-facial fractures, respectively. Among associated fractures, the femur was most affected. A total of 39 (29.54 percent) of patients had post-operative complications, of which infection accounted for 48.71 percent (n= 19), and malocclusion accounted for 17.94 percent (n=7). CONCLUSIONS: Anticipated changes in maxillofacial trauma trends necessitate regular epidemiologic studies of facial fractures to allow for development and implementation of timely novel preventive measures.

Reconstrução cirúrgica de fratura fronto-naso-órbito-etmoidal / Surgical reconstruction of a frontonasal orbital-etmoidal fracture

As fraturas do seio frontal são originadas a partir de acidentes de grande intensidade, que incluem acidentes automobilísticos, agressões físicas, acidentes esportivos e quedas. Normalmente, estão associadas com fraturas do terço médio da face, incluindo fraturas maxilares, naso-órbito-etmoidais e zigomáticas. Várias modalidades de tratamento têm sido propostas para reconstrução das fraturas fronto-naso-órbito-etmoidais, incluindo fixação dos fragmentos ósseos com placas e parafusos, reconstrução com enxertos ósseos e implante de malhas de titânio. No caso ora apresentado, utilizou-se do acesso bicoronal para reconstrução da parede anterior do seio frontal e restabelecimento do contorno fronto-naso-órbito-etmoidal, sendo utilizado enxerto ósseo de calota craniana para esse fim. Verificou-se a integridade do ducto fronto-nasal, não havendo necessidade de canulização deste. Esse procedimento é importante diretriz no plano de tratamento, uma vez que determina a obliteração ou canulização do ducto. Nenhuma complicação ou sequela foi observada na proservação de aproximadamente um ano. A proservação por longos períodos pós-operatórios é importante para avaliação de possíveis complicações.

Frontal sinus fractures are originated from high intensity accidents, including automobile accidents, altercations, sports accidents and falls. Normally, they are associated with fractures of the middle third of the face, including maxillary, nasal-orbital-etmoidal and zygomatic fractures. Several treatment modalities have been proposed to reconstruct fronto-nasal-orbital-etmoidal fractures, including fixation of bone fragments with plates and screws, reconstruction with bone grafts and titanium mesh implants. In the case here presented, bicoronal access was used to reconstruct the anterior wall of the frontal sinus and to reestablish the fronto-nasal-orbital-etmoidal contour, using a bone graft from the cranial cap for this purpose. The integrity of fronto-nasal duct was verified, and there was no need to canalize it. This procedure is an important guideline in the treatment plan, since it determines obliteration or canalization of the duct. After one year of follow-up, no complication or sequela was observed. Long periods of post-operative follow up are very important to evaluate possible complications.

Tratamento cirúrgico das fraturas de face em pacientes pediátricos: características clínicas em um centro de trauma terciário

Objetivo: As fraturas de face na faixa etária pediátrica apresentam pequena incidência, sendo geralmente conduzidas com tratamento conservador. O objetivo do estudo é avaliar o padrão das fraturas de face, nesta faixa etária, nos casos que necessitaram de tratamento cirúrgico. Método: No período de janeiro de 2001 a dezembro de 2007, 43 pacientes com idade entre 0 a 17 anos foram submetidos a tratamento cirúrgico de fraturas da face. Foram avaliados os seguintes dados: mecanismo de trauma, idade, sexo, ossos acometidos, índice fraturas/paciente, intervalo de tempo trauma-tratamento cirúrgico, lesões associadas e métodos de osteossíntese. Para fins comparativos, os pacientes foram divididos em dois grupos: grupo A de 0 a 12 anos, e grupo B de 13 a 17 anos. Resultados: A média de idade foi de 12,4 anos (2 a 17 anos), sendo 18 (41,86%) pacientes pertecentes ao grupo A e 25 (58,14%), ao grupo B. Em relação ao sexo, 34 (79%) pacientes eram do sexo masculino (14 grupo A e 20 grupo B) e 9 (21%) do sexo feminino, sendo 4 do grupo A e 5 do grupo B. Traumas decorrentes de colisões de veículos foram os mais freqüentes, perfazendo 18 pacientes, seguidos por quedas (11), agressões físicas (7), atropelamentos (5) e ferimentos por arma de fogo em 2 casos. Lesões associadas às fraturas de face foram diagnosticadas em 17 (40%) pacientes, sendo observados TCE grave e moderado, lesões em membros superiores e inferiores, tórax, pescoço e partes moles da face. Os ossos da face acometidos foram: mandíbula em 25 vítimas, maxila em 18, zigoma em 15, fraturas naso-etmoido-orbitárias em 7, órbita em 6, osso nasal e osso frontal em 5 vítimas, totalizando um índice fraturas/paciente de 3,9. O intervalo de tempo entre o trauma e o tratamento cirúrgico foi em media de 7,2 dias (1 a 35 dias). Os métodos de fixação incluíram bloqueio intermaxilar em 8 pacientes, osteossíntese exclusiva com fios de aço em 11 pacientes, osteossíntese com parafusos...