ABSTRACT
Objective: the aim of this study was to compare the mechanical behavior of different ceramics when used in thin vertical preparations versus traditional horizontal preparation. Material and Methods: two stainless-steel dies were milled to simulate a minimally invasive vertical preparation (VP) and a traditional horizontal preparation (HP) for an all-ceramic crown of a maxillary first premolar. The stainless-steel dies were duplicated using epoxy resin. Eighty monolithic crowns were milled and divided into 2 groups according to preparation design. Each design group was subdivided into 4 sub-groups according to material (n=10): IPS e.max CAD (lithium disilicate), Bruxzir shaded zirconia (full contour zirconia), CeraSmart (resin nanoceramic) and CEREC Tessera (advanced lithium disilicate). The crowns were cemented on their relevant epoxy resin dies using self-adhesive resin cement. All specimens were subjected to 15,000 thermocycles and then loaded to fracture in a universal testing machine. Data were analyzed using two-way ANOVA and Tukey pair wise comparison test. Results: the fracture resistance mean values of the VP (1344 + 118 N) was significantly lower than the HP design (1646 + 191 N). Ceramic crowns made of full contour zirconia had higher fracture resistance mean values (2842 + 380 N) than advanced lithium disilicate (1272 + 125 N) followed by lithium disilicate crowns (983 + 52 N) and resin nanoceramic (882 + 61 N). Conclusion: both vertical and horizontal preparations, regardless the different ceramic materials, showed clinically acceptable fracture resistance values. (AU)
Objetivo: o objetivo deste estudo foi comparar o comportamento mecânico de diferentes cerâmicas quando utilizadas em preparos verticais finos ou preparos horizontais tradicionais. Material e Métodos: dois modelos de aço inoxidável foram fresados para simular um preparo vertical minimamente invasivo (PV) e um preparo horizontal tradicional (PH) para uma coroa totalmente em cerâmica de um primeiro pré-molar superior. As matrizes de aço inoxidável foram duplicadas usando resina epóxi. Oitenta coroas monolíticas foram fresadas e divididas em 2 grupos de acordo com o desenho do preparo. Cada grupo foi subdividido em 4 subgrupos de acordo com o material (n=10): IPS e.max CAD (dissilicato de lítio), zircônia Bruxzir (zircônia de contorno total), CeraSmart (resina nanocerâmica) e CEREC Tessera (dissilicato de lítio avançado). As coroas foram cimentadas em suas respectivas matrizes de resina epóxi usando cimento resinoso autoadesivo. Todos os espécimes foram submetidos a 15.000 ciclos térmicos e então carregados até a fratura em uma máquina de teste universal. Os dados foram analisados usando ANOVA com dois fatores e teste de comparação por pares de Tukey. Resultados: os valores médios de resistência à fratura do PV (1344 + 118 N) foram significativamente menores do que PH (1646 + 191 N). As coroas de cerâmica feitas de zircônia de contorno total apresentaram maiores valores médios de resistência à fratura (2842 + 380 N) do que dissilicato de lítio avançado (1272 + 125 N), seguido por coroas de dissilicato de lítio (983 + 52 N) e resina nanocerâmica (882 + 61 N). Conclusão: preparos verticais e horizontais, independentemente dos diferentes materiais cerâmicos, apresentaram valores de resistência à fratura clinicamente aceitáveis. (AU)
Subject(s)
Bicuspid , Dental Prosthesis , Tooth Crown , Resin Cements , Epoxy Resins , Fractures, BoneABSTRACT
Las fracturas acetabulares con compromiso del cartílago trirradiado (CTR) en pacientes pediátricos son muy poco frecuentes, difíciles de diagnosticar y complejas de tratar; pudiendo dejar graves secuelas. Generalmente son producto de accidentes de tránsito de alta energía cinética. Debido a su baja prevalencia no hay grandes series en la bibliografía y por ende tampoco existe un consenso terapéutico. Realizamos una puesta a punto del tema a propósito de un atípico caso de una niña de 9 años con una fractura del acetábulo con compromiso del CTR, producido por un traumatismo de baja energía cinética. Registramos su diagnóstico y tratamiento quirúrgico, evaluamos su resultado clínico - radiológico y funcional mediante el Hip Harris Score (HHS) al final de su seguimiento de 5 años.
Acetabular fractures with compromise of the triradiate cartilage (TRC) in pediatric patients are very rare, difficult to diagnose and complex to treat, also can leave serious consequences. They are generally product of high energy kinematics. Due to its low prevalence, there are no large series in the literature and therefore there is no therapeutic consensus. We carried out a recapitulation of the subject regarding an atypical case of a 9-year-old girl with an acetabulum fracture with compromise of the TRC, produced by a low kinetic energy trauma. We recorded the diagnosis and surgical treatment, and also, we evaluated the clinical-radiological and functional results through the Hip Harris Score (HHS) at the end of their 5-year follow-up.
As fraturas acetabulares com compromisso da cartilagem trirradiada (TRC) em pacientes pediátricos são muito poco frecuentes, de difícil diagnóstico e complexas de tratar; e podem deixar sérias consequências. Geralmente são o produto de acidentes de trânsito de alta energia cinética. Devido à sua baixa prevalência, não há grandes séries na literatura e, portanto, não há consenso terapêutico. Realizamos uma atualização do tema referente a um caso atípico de uma menina de 9 anos com fratura de acetábulo com comprometimento do CTR, produzida por um trauma de baixa energia cinética. Registramos seu diagnóstico e tratamento cirúrgico, avaliamos seus resultados clínico-radiológicos e funcionais por meio do Hip Harris Score (HHS) ao final de seu seguimento de 5 anos.
Subject(s)
Humans , Female , Child , Acetabulum/surgery , Acetabulum/injuries , Treatment Outcome , Fractures, Bone/surgery , Fractures, Bone/diagnostic imaging , Fracture FixationABSTRACT
El tratamiento de las fracturas de clavícula distal se puede lograr a través de varias opciones. Las placas de bloqueo asociadas con los botones coracoclaviculares son una alternativa para estabilizar las lesiones de ligamentos asociadas con las fracturas de tipo IIB de Craig. La artroscopía puede ayudar a colocar el botón subcoracoideo. Presentamos el caso de una mujer de treinta y cinco años quien, al caer de una bicicleta, resultó con traumatismo directo en el hombro izquierdo. Las radiografías mostraron fractura conminuta de la clavícula distal asociada con lesiones de ligamentos (tipo IIB de Craig). Se optó por tratamiento quirúrgico con placa bloqueada con un botón pegado asociado a otro botón subcoracoideo asistido por artroscopía. A través de una vía de acceso directo sobre la clavícula mediolateral, se redujeron anatómicamente los fragmentos de fractura y se fijaron con una placa bloqueada para la clavícula distal y siete tornillos. Se realizó portal artroscópico posterior para visualizar la articulación. Mediante portal anterior se expusieron el espacio rotador y la región subcoracoidea. Con la ayuda de guías especiales se instalaron dos botones (uno subcoracoideo y otro pegado a la placa) conectados por cables especiales. Tres meses después de la cirugía, la paciente estaba sin dolor y volvió a practicar deportes al nivel previo a la lesión. Se logró un ROM normal y radiografías con la fractura anatómicamente consolidada y distancia coracoclavicular normal. Nivel de Evidencia: IV
The treatment of distal clavicle fractures can be accomplished through several options. Locking plates associated with coracoclavicular buttons are an alternative to stabilize ligament injuries associated with Craig's type IIB fractures. Arthroscopy can assist in positioning the subcoracoid dog button.We present the case of a thirty-five-year-old female fell from a bicycle with direct trauma to her left shoulder. Radiographs showed comminuted fracture of the distal clavicle associated with ligament injuries (Craig's type IIB). We opted for surgical treatment with a locked plate with a coupled button associated with a subcoracoid dog bone, assisted by arthroscopy. Through a direct region route over the mediolateral clavicle, the fracture fragments were anatomically reduced and fixed with a locked plate for the distal clavicle and seven screws. Posterior arthroscopic portal was performed to visualize the joint. Anterior portal was performed and the rotator space and subcoracoid region was exposed. With the aid of special guides, two buttons were installed (one sub-coracoid button and other attached to the plate) connected by special wires ("tapes"). Three months after the surgery, the patient was pain-free and returned to sports at the level prior to the injury. Normal ROM was achieved and radiographs with the anatomically consolidated fracture and normal coracoclavicular distance. Level of Evidence: IV
Subject(s)
Adult , Arthroscopy , Clavicle/injuries , Fractures, BoneABSTRACT
Las luxaciones del escafoides aisladas y sin fractura son poco frecuentes. Por lo general, se presentan asociadas a fracturas del escafoides o a diversos patrones de lesión de la columna lateral. Presentamos el caso de un paciente con luxación medial y plantar del hueso navicular y fractura conminuta del proceso anterior del calcáneo y subluxación calcaneocuboidea. En el Servicio de Urgencia, se procedió a la reducción cerrada y la estabilización con agujas de Kirschner y, como tratamiento diferido, se colocaron placas en puente astragalonaviculo-cuneiforme y calcaneocuboidea de 2,0 mm, en forma transitoria, y el material de osteosíntesis se retiró a los 5 meses. El puntaje de la escala de la AOFAS fue excelente al año de seguimiento. Conclusiones: Es necesario llegar a un diagnóstico adecuado descartando lesiones de la columna lateral y reducir esta lesión en la atención de urgencia. La estabilización con placas en puente es una opción válida que podría evitar la pérdida de la reducción que se observa al retirar los clavos de Kirschner y permite una carga precoz. Nivel de Evidencia: IV
Isolated navicular dislocations are unusual. They are frequently associated with navicular fractures or diverse patterns of lateral column injuries. We report a case of a patient with medial and plantar navicular dislocation with a comminuted intra-articular fracture of the anterior process of the calcaneus and associated subluxation at the calcaneocuboid joint. The patient underwent closed reduction and Kirschner wire stabilization in the Emergency Service. As part of the deferred treatment, talonavicular-cuneiform and calcaneocuboid 2.0 mm bridge plates were temporarily placed and osteosynthesis material was removed 5 months later. The AO-FAS score was excellent in the one-year follow-up. Conclusion: An accurate diagnosis, ruling out lateral column injuries, should be done in the Emergency Service. Bridge plate stabilization is a valid option to prevent loss of reduction, which is observed when removing Kirschner wires, allowing early weight-bearing. Level of Evidence: IV
Subject(s)
Calcaneus , Scaphoid Bone , Foot Joints , Joint Dislocations , Fractures, BoneABSTRACT
Introducción: El adecuado tratamiento de los defectos óseos se presenta como un desafío para el cirujano ortopedista, en cuanto a la dificultad en la restitución de un miembro alineado, sin discrepancia ni infección. Se han descrito múltiples técnicas para reconstruir estos defectos, como el injerto óseo autólogo o de banco, la técnica de membrana inducida, la osteogénesis por distracción y los cilindros de titanio trabecular, pero ninguna ha demostrado ser significativamente superior a otra. materiales y métodos: Entre 2018 y 2021, 10 pacientes con defectos óseos de la tibia fueron tratados mediante transporte óseo guiado con osteosíntesis endomedular. Se realizó un estudio retrospectivo descriptivo analizando la magnitud de los defectos, el tiempo de transporte, las complicaciones y cirugías adicionales durante el proceso, si hubo consolidación y las deformidades residuales. Al final del proceso, se midió el puntaje de la ASAMI (óseo y funcional). Resultados: La longitud promedio de los defectos tratados fue de 9,75 cm y el índice de fijación externa promedio, de 40,62 días/cm. El 50% tenía un puntaje de la ASAMI óseo bueno; el 10%, excelente y el 40%, pobre al final del proceso reconstructivo. El 20% tenía un puntaje de la ASAMI funcional excelente; el 30%, bueno y el 50%, pobre. Conclusiones: El uso de tutores externos guiados mediante osteosíntesis es un método fiable para tratar defectos óseos, al mismo tiempo que se trata la infección de manera local y sistémica, acortando los tiempos de tutor externo y, por lo tanto, de internación y reintervención. Nivel de Evidencia: IV
Introduction: The proper treatment of bone defects represents a challenge for the orthopedic surgeon given the difficulty in restoring limb alignment without discrepancy nor infections. Multiple techniques have been described for the reconstruction of these defects. These include bone grafting, whether autologous or from a bank, the induced membrane technique, distraction osteogenesis, and, recently, the use of trabecular titanium cylinders, but none has been shown to be significantly superior to another. materials and methods: Between 2018 and 2021, ten patients with tibial bone defects were treated by guided bone transport with intramedullary osteosynthesis. We carried out a descriptive retrospective study of this series, analyzing the magnitude of the defects, the transport time, the complications and additional surgeries that took place during the process, whether there was con-solidation, and the residual deformities. The bone and functional ASAMI scores were measured at the end of the process. Results: The average length of the treated defects was 9.75 cm and the average external fixation index was 40.62 d/cm. At the end of the reconstructive process, 50% of the patients presented a good bone ASAMI score, 10% presented an excellent score, and 40% had a poor score. Regarding the functional ASAMI score, 20% were excellent, 30% were good, and 50% were poor. Conclusion: The use of fixators guided by intramedullary nails constitutes a reliable method to treat bone defects that allows treating the infection locally and systemically, shortens the times of external fixation and hospitalization, and reduces the need for reinterventions. Level of Evidence: IV
Subject(s)
Adult , External Fixators , Plastic Surgery Procedures , Debridement , Fractures, BoneABSTRACT
Objetivo: Describir los resultados radiográficos y funcionales, y las complicaciones de la osteosíntesis de fracturas de calcáneo mediante el abordaje del seno del tarso. Materiales y Métodos: Se evaluaron 54 fracturas articulares de calcáneo desplazadas en 50 pacientes con radiografías de pie, de frente y de perfil, y tomografía computarizada preoperatorias. Se tomaron radiografías de pie, de frente y de perfil sin carga en el posoperatorio inmediato y con carga a las semanas 6 y 12, y al final del seguimiento. Se midió el ángulo de Böhler y se cuantificó el grado de artrosis subastragalina y calcaneocuboidea. Se determinó el puntaje de la AOFAS y se registraron las complicaciones de la herida, las lesiones neurológicas y la necesidad de cirugías adicionales, como retiro del material de osteosíntesis y artrodesis subastragalina. Resultados: El seguimiento fue de 30.8 meses. La serie estaba formada por 8 mujeres y 42 hombres, con una edad de 39.40 ± 14 años (rango 18-65). Cuarenta fracturas eran Sanders tipo II, 13 tipo III y 1 tipo IV. El puntaje de la AOFAS fue: excelente (12 casos), bueno (25 casos), regular (12 casos) y malo (5 casos). El ángulo de Böhler preoperatorio era de 10,8 ± 10,4° y 30,77 ± 8,24° al final del seguimiento (p <0,00001). El 3,7% tuvo complicaciones menores de la herida y el 5,6%, complicaciones mayores. Conclusión: El abordaje del seno del tarso permite una reducción aceptable con resultados buenos y excelentes en la mayoría de los pacientes y escasas complicaciones de partes blandas. Nivel de Evidencia: IV
Objective: To describe functional and radiographic outcomes, and complications of osteosynthesis in calcaneus fractures with the sinus tarsi approach. Materials and Methods: 54 displaced articular calcaneus fractures in 50 patients were assessed through preoperative foot radiographs (anteroposterior and lateral) and computerized tomography. AP and lateral radiographs were obtained in the immediate postoperative period (without weightbearing), after 6 and 12 weeks (with weightbearing), and at the end of follow-up, measuring the Böhler angle and quantifying the degree of subtalar and calcaneocuboid osteoarthritis. The AOFAS score was determined, registering wound complications, neurological injuries and necessary additional surgeries -such as osteosynthesis and subtalar arthrodesis hardware removal. Results: Follow-up time was 30.8 months. The series consisted in 8 women and 42 men. The patients' average age was 39.40±14 years (18-65). There were 40 Sanders type II, 13 type III, and 1 type IV fractures. The AOFAS score was excellent (12 patients), good (25), regular (12), and poor (5). The Böhler angle was 10.8°±10.4° before surgery, and 30.77°±8.24° at the end of follow-up (p<0.00001). 3.7% of the patients presented minor wound complications, while 5.6% presented major wound complications. Conclusion: The sinus tarsi approach allows for acceptable reduction with good and excellent outcomes in most patients, coupled with few soft-tissue complications. Level of Evidence: IV
Subject(s)
Adult , Calcaneus/injuries , Fractures, BoneABSTRACT
Objetivo: Analizar las características demográficas de los pacientes con fracturas articulares de calcáneo en relación con el mecanismo del trauma y los patrones fracturarios según las clasificaciones de Sanders y Essex-Lopresti. materiales y métodos: Se evaluó retrospectivamente a 94 pacientes (111 fracturas articulares de calcáneo). Se analizaron las siguientes variables: edad, sexo, lado fracturado, mecanismo del trauma y lesiones asociadas. Al ingresar, se tomaron radiografías de pie, de frente y perfil, y se realizó una tomografía computarizada con reconstrucción multiplanar. Se analizaron los datos demográficos combinándolos con los tipos de fracturas. Resultados: Se evaluó a 94 pacientes (78 hombres y 16 mujeres) que tenían 105 fracturas intrarticulares de calcáneo (11,7% bilaterales). La edad promedio era de 40.1 ± 12.5 años. El 79,8% de las fracturas se había producido por caída de altura y el 20,1%, por accidente de tránsito. El 9,5% tenía lesiones asociadas. Los pacientes con fracturas bilaterales tenían más lesiones asociadas (p = 0,0123) y el mismo patrón fracturario y tipo de Sanders en ambos pies. No hubo relación entre la clasificación de Sanders y los patrones de Essex-Lopresti con la edad, el sexo y el mecanismo del trauma. Conclusiones: Las fracturas de calcáneo son más frecuentes en hombres y en pacientes jóvenes, y el mecanismo del trauma más común es una caída de altura. Los pacientes con fracturas bilaterales tienen una tasa más alta de lesiones asociadas y el mismo tipo de fractura según la clasificación de Sanders y el patrón fracturario de Essex-Lopresti en ambos pies. Nivel de Evidencia: IV
Objective: To analyze the demographic characteristics of patients with articular calcaneal fractures in connection with trauma mechanisms and fracture patterns, according to the Sanders and Essex-Lopresti classifications. materials and methods: 94 patients and 111 articular calcaneal fractures were evaluated retrospectively, analyzing the following variables: age, gender, fractured side, mechanism of trauma, and associated injuries. The patients were initially evaluated through foot radiographs (anteroposterior and lateral) and axial computerized tomography with multiplanar reconstruction. Demographic data were analyzed combined with the types of fracture. Results: 94 patients (78 men and 16 women) who presented 105 intra-articular calcaneal fractures (11.7% were bilateral) were evaluated. The average age was 40.1±12.5 years. 9.8% of the fractures were caused by high-level falls and 20.1% by traffic accidents. 9.5% had associated injuries. The patients with bilateral fractures presented more associated injuries (p = 0.0123) and the same fracture pattern and Sanders type in both feet. The Sanders classification and Essex Lopresti patterns were unrelated to age, gender, and trauma mechanism. Conclusion: Calcaneal fractures are more frequent in male and young patients, and the most common trauma mechanism is a high-level fall. Patients with bilateral fractures present a higher rate of associated injuries and the same Sanders type fracture and Essex-Lopresti pattern in both feet. Level of Evidence: IV
Subject(s)
Adult , Calcaneus/injuries , Demography , Fractures, Bone , FootABSTRACT
Although much progress has been obtained in terms of the Endodontic treatment, the literature shows that true success can be only achieved with adequate coronal seal to avoid bacterial contamination, and protect the tooth structure from fracture. There are many options available to the clinician to restore the endodontically treated tooth; however, there is not much evidence available on what alternative is better than another. This review will critically present the current knowledge on restorative choices, including posts and endocrowns, showing advantages and disadvantages of different treatment forms. With this knowledge, we will also introduce the concept of biomimetics to endodontically treated teeth, and how the nature of their remaining tooth structure can benefit from this approach. This concept entails the use of mechanisms and biologically produced materials to restore a tooth in a way that would mimic its natural structure, with the purpose of achieving better long-term prognosis (AU)
Embora tenha se obtido progresso em relação ao tratamento endodôntico, a literatura mostra que o sucesso real só pode ser atingido com o selamento coronal adequado, para evitar-se a contaminação bacteriana e proteger-se a estrutura dental de fraturas. Há muitas opções disponíveis para o clínico para a restauração do dente tratado endodonticamente; entretanto, não há muita evidência disponível sobre qual alternativa é melhor que a outra. Esta revisão apresentará criticamente o conhecimento atual sobre opções restauradoras, incluindo retentores intraradiculares e endocrowns, mostrando vantagens e desvantagens das diferentes formas de tratamento. Com esse conhecimento, também introduziremos o conceito de biomimética, uma vez que dentes tratados endodonticamente, devido a natureza de sua estrutura dental remanescente, podem se beneficiar desta abordagem. Esse conceito envolve o uso de mecanismos e materiais produzidos biologicamente para restaurar um dente de forma a imitar a estrutura natural, com o objetivo de alcançar melhor prognóstico de longo-prazo.(AU)
Subject(s)
Tooth , Biomimetics , Endodontics , Fractures, BoneSubject(s)
Humans , Male , Female , Adult , Middle Aged , Pulmonary Embolism/drug therapy , Aspirin/adverse effects , Aspirin/therapeutic use , Heparin, Low-Molecular-Weight/adverse effects , Heparin, Low-Molecular-Weight/therapeutic use , Fractures, Bone/complications , Fractures, Bone/mortality , Pelvis/injuries , Pulmonary Embolism/prevention & control , Randomized Controlled Trials as Topic , Extremities/injuries , Venous Thromboembolism/prevention & control , Venous Thromboembolism/drug therapy , Hip Fractures/complications , Hip Fractures/mortalityABSTRACT
Objectives: The present study was designed to examine the efficacy of Cissus quadrangularis paste on fracture healing in artificially induced fractured rabbits. Methods: Fifteen rabbits were separated into three groups namely A, B, and C. Veldt grape paste was applied in groups B and C (Treatment Group) by close reduction and open reduction methods of fracture management; respectively, while group A was kept as control. The blood parameter and fracture healing properties in all animals have been monitored and examined routinely during the study period. Results: Both treated groups revealed lower serum calcium levels (SCL) than the control group after 24 hours of fracture that became within the normal range on the 14th day. Fracture healing in the treated groups has been commenced more rapidly than the control group with complete bridging of discontinuity by a distinct osseous callus in the fracture line on day 7 and complete effacing of fracture line on day 14. Conclusion: We did not find any type of anomalousness, clinical deviations, and alteration of serum calcium level on the 14th day of the fracture in treated animals hence Veldt Grape paste could be readily applicable to the management of the fracture in animals.
Objetivos: avaliar a eficácia da pasta de Cissus quadrangularis na consolidação de fraturas em coelhos fraturados artificialmente. Metodos: quinze coelhos foram separados em três grupos (A, B e C). A pasta foi aplicada nos grupos B e C (Grupo de Tratamento) pelos métodos de redução fechada e redução aberta de gerenciamento de fraturas; respectivamente. O grupo A foi mantido como controle. O parâmetro sanguíneo e as propriedades de cicatrização de fraturas em todos os animais foram monitorados e examinados, rotineiramente, durante o período do estudo. Resultados: ambos os grupos tratados revelaram níveis séricos de cálcio (SCL) mais baixos do que o grupo controle, após 24 horas de fratura que se tornou normal no 14º dia. A cicatrização da fratura nos grupos tratados foi iniciada mais rapidamente do que o grupo controle, com ponte completa de descontinuidade por um calo ósseo distinto na linha de fratura no dia 7 e apagamento completo da linha de fratura no dia 14. Conclusao: não encontramos nenhum tipo de anomalia, desvios clínicos e alteração do nível sérico de cálcio no 14º dia da fratura nos animais tratados, portanto, a pasta Veldt Grape pode ser aplicável ao manejo da fratura em animais.
Subject(s)
Fracture Healing , Cissus , Ointments , Therapeutics , Bony Callus , Fractures, Bone , Goals , Animals, Laboratory , MethodsABSTRACT
Introdução: Osteogênese Imperfeita (OI) é uma doença genética rara com fragilidade óssea. A classificação inclui muitos tipos. Além do risco de recorrência, o manejo pode variar com o tipo de OI. Relato do caso: Apresentamos um paciente do sexo masculino nascido com 39 semanas, de pais não consanguíneos e saudáveis. A hidrocefalia foi diagnosticada no pré-natal. Com 50 dias de vida, detectamos muitas fraturas e calos ósseos. O teste molecular identificou uma deleção em homozigose do éxon 4 do gene WNT1. Considerações finais: Concluímos que o caso apresentado tinha características clínicas de OI XV, e o teste molecular foi fundamental para o diagnóstico preciso e aconselhamento genético.
Introduction: Osteogenesis Imperfecta (OI) is a rare genetic disease with bone fragility. The classification includes many types. In addition, the risk of a recurrence, the management can vary with the kind of OI. Case report: We report a male patient born at 39 weeks from non-consanguineous healthy parents. The patient was diagnosed with Hydrocephalus at prenatal. At 50 days of life, we detected many fractures and bone calluses. The molecular test identified a homozygous deletion of exon 4 of the WNT1 gene. Final considerations: We conclude this case had clinical features of OI XV, and the molecular test was fundamental for the precise diagnosis and the genetic counseling.
Subject(s)
Humans , Male , Child, Preschool , Osteogenesis Imperfecta/diagnosis , Osteogenesis , Prenatal Care , Infant, Premature , Fractures, Bone , Genetic Counseling , Genetics , Genetic Diseases, Inborn , HydrocephalusABSTRACT
Abstract Objective The present study was conducted to estimate histologically the proportion of avascularity of fracture ends in case of nonunion of long bones. Methods A total of 15 cases of established quiescent nonunion were operated according to the standard protocol and the fracture ends were evaluated histologically. The biopsied tissue was briefly fixed with formalin, embedded with paraffin (FFPE), and 5-micron sections were stained with hematoxylin and eosin according to standard protocols. Immunohistochemistry with anti-CD31 antibody (JC70A clone, DBS) was performed manually using standard protocols. Results All cases of quiescent nonunion were included; radiologically, 2 cases were oligotrophic, and 13 cases were of atrophic nonunion. A total of 20% of the patients were females, 40% were in the age group between 31and 40 years old, and, radiologically, all cases were of atrophic nonunion. All cases showed positivity for CD-31 on immunohistochemistry. The blood vessel density was category I in 13.33% of the cases and category II in 86.67% of the cases. Four cases presented with mild inflammation and two presented with moderate inflammation. The average vessel count was 10 per high power field in the age groups between 20 and 30, 31 and 40, and 41and 50 years old. The age group between 61 and 70 years old showed an average vessel count of 4 per high power field. The difference in the vessel counts of oligotrophic and atrophic nonunion was not significant. No correlation was observed in the density of vessel count and duration of nonunion Conclusion The nomenclature for the classification of nonunion into atrophic, oligotrophic, and hypertrophic needs revision. Our findings do not support that atrophic and oligotrophic nonunion are histologically different.
Resumo Objetivo O presente estudo estimou a proporção de avascularidade histológica das extremidades das fraturas em caso de pseudoartrose de ossos longos. Métodos No total, 15 casos de pseudoartrose quiescente estabelecida foram operados de acordo com o protocolo padrão e as extremidades da fratura foram avaliadas histologicamente. Em resumo, o tecido biopsiado foi fixado em formalina e embebido em parafina (FFPE); secções de 5 mícrons foram coradas com hematoxilina e eosina de acordo com os protocolos padrões. A imunohistoquímica com anticorpo anti-CD31 (clone JC70A, DBS) foi realizada manualmente segundo protocolos padrões. Resultados Todos os casos de pseudoartrose quiescente foram incluídos; 2 eram de pseudoartrose oligotrófica e 13 eram de pseudoartrose atrófica à radiologia. Destes, 20% eram de pacientes do sexo feminino, 40% de indivíduos entre 31 e 40 anos de idade e todos os casos eram de pseudoartrose atrófica à radiologia. Todos os casos eram positivos para CD-31 à imunohistoquímica. A densidade dos vasos sanguíneos era de categoria I em 13,33% dos casos e de categoria II em 86,67%. Quatro casos apresentavam inflamação branda e dois apresentavam inflamação moderada. O número médio de vasos era de 10 por campo de alta potência na faixa etária de 20 a 30, de 31 a 40 e de 41 a 50 anos. A faixa etária de 61 a 70 anos apresentava, em média, 4 vasos por campo de alta potência. A diferença nos números de vasos em pseudoarthroses oligotróficas e atróficas não foi significativa. Não houve correlação entre a densidade de vasos e a duração da pseudoartrose. Conclusão A nomenclatura de classificação da pseudoartrose em atrófica, oligotrófica e hipertrófica precisa ser revista. Nossos achados não indicam que a pseudoartrose atrófica e oligotrófica sejam histologicamente diferentes.
Subject(s)
Humans , Male , Female , Adult , Middle Aged , Aged , Pseudarthrosis , Cross-Sectional Studies , Platelet Endothelial Cell Adhesion Molecule-1 , Fractures, Bone/surgery , Fractures, UnunitedABSTRACT
Com o aumento da população brasileira e consequentemente o número de edêntulos realizando tratamentos reabilitadores com implantes dentários, se tornou frequente aparições de complicações como, por exemplo, sua fratura. O presente trabalho tem por objetivo apresentar as causas prováveis relacionadas a fratura de implante dentário, através de um relato de caso clínico onde pode-se avaliar a condição da fratura apresentada e como foi solucionada. Após a analise do caso clínico, foi constatado que o principal fator que levou a sua fratura foram as sobrecargas oclusais associadas ao mal posicionamento e a qualidade do implante antigo. A partir disso, conclui-se que é de extrema importância o cirurgião dentista estar ciente de todas as possíveis complicações acerca do implante dentário, afim de realizar um bom planejamento cirúrgico diminuindo a taxa de insucesso levando a um bom prognóstico.
With the increase of the Brazilian population and, consequently, the number of edentulous individuals undergoing rehabilitation treatmentes with dental implants, the appearance of complications such as, for example, their fracture has become frequent. The present work aims to presente the probable causes related to dental implant fracture, trough a clinical case report where the condition of the fracture presented and how it was resolved can be evaluated. After analyzing the clinical case, it was found that de main factor that led to its fracture were the occlusal overloads associated with poor positioning and the quality of the old implant. From this , it is concluded that it is extremely important for the dental surgeon to be aware of all possible complications regarding the dental implant, in order to carry out a good surgical planning, reducing the failure rate, leading to a good prognosis.
Con el aumento de la población brasileña y, en consecuencia, del número de personas edéntulas que se someten a tratamientos de rehabilitación con implantes dentales, las complicaciones, como las fracturas, se han vuelto comunes. El presente trabajo tiene como objetivo presentar las probables causas relacionadas con la fractura de implantes dentales, a través del reporte de un caso clínico, donde se puede evaluar la condición de la fractura presentada y la forma en que fue resuelta. Tras analizar el caso clínico, se comprobó que el principal factor que condujo a la fractura fue la sobrecarga oclusal asociada a una mala colocación y a la calidad del implante antiguo. Esto lleva a la conclusión de que es muy importante que el cirujano dental conozca todas las posibles complicaciones de los implantes dentales, para realizar una buena planificación quirúrgica, reduciendo así la tasa de fracasos y consiguiendo un buen pronóstico.
Subject(s)
Humans , Male , Middle Aged , Prostheses and Implants , Dental Implants , Causality , Bruxism/complications , Clinical Diagnosis/education , Osseointegration , Torque , Dental Implantation, Endosseous/instrumentation , Dentists/education , Fractures, BoneABSTRACT
Introdução: o tratamento cirúrgico de pacientes com fraturas do processo odontoide tem sido controverso. As principais técnicas cirúrgicas para o segmento C1-C2 incluem além da artrodese cervical (aramagem tipo Gallie, parafusos transarticulares e aramagem tipo 88), a fixação direta com parafuso no processo odontoide. Objetivo: comparar a estabilidade mecânica destes quatro tipos de osteossínteses do segmento atlantoaxial (C1-C2). Metodologia: vinte segmentos atlantoaxiais de cadáveres humanos adultos foram preparados com fraturas do tipo 2 de Anderson e D'Alonso e divididos em quatro grupos: aramagem tipo Gallie (aG); parafusos transarticulares (pT); parafuso no processo odontoide (pD); aramagem tipo 88 (a88). Os corpos de prova foram submetidos a esforços de flexocompressão em máquina universal de ensaios mecânicos para análise de resistência, elasticidade e deformações. Resultados:na fase de acomodação, os parafusos no processo odontoide apresentaram pouquíssima mobilidade com cargas baixas. Na fase de elasticidade, não houve diferença significativa entre as construções testadas. Com relação à resistência máxima suportada pelas construções, houve uma diferença estatisticamente significativa a favor da aramagem tipo Gallie. Conclusão: nossos testes mostraram que em relação à acomodação houve diferença significativa entre a aramagem tipo Gallie e o parafuso no processo odontoide; e quanto à resistência máxima, entre a aramagem tipo Gallie e o parafuso transarticular.
Introduction: the surgical treatment of patients with fractures of the odontoid process has been controversial. The main surgical techniques for C1-C2 are: Gallie wiring, transarticular screw, direct odontoid process screw and 88 posterior laminar wiring. Objective: to compare the mechanical stability of these four types of atlantoaxial segment osteosynthesis (C1/C2). Methodology: twenty atlantoaxial segments of adult human cadavers were prepared with Anderson and D'Alonso type II fractures and divided into four groups: Gallie wiring; transarticular screw; odontoid process screw; 88 wiring. After being fixed with each osteosynthesis technique, they were submitted to flexocompression efforts in a universal mechanical testing machine for analysis of strength, elasticity and deformations. Results: in the accommodation phase, the odontoid process screws showed very little mobility with low loads. In the elasticity phase, there was no significant difference between the constructions tested. With regard to the maximum resistance supported by the constructions, there was a statistically significant difference in favor of Gallie wiring. Conclusion: Our tests showed a significant difference between Gallie wiring and odontoid process screw in accommodation; and between the Gallie wiring and the transarticular screw in maximum resistance test
Subject(s)
Humans , Male , Female , Adult , Spinal Fusion , Fractures, Bone , Fracture Fixation, Internal , Odontoid Process , CadaverABSTRACT
Introducción: Los medios de enseñanzas son los ejes vertebrales de gran parte de las acciones de enseñanzas y aprendizaje desarrolladas en cualquiera de los niveles o modalidades de la educación. Objetivos: Sistematizar y resaltar los fundamentos y ventajas de la guía de autoayuda sobre la fractura de cadera en el adulto mayor, como medio de enseñanza en la superación profesional del médico de la atención primaria. Métodos: Analítico sintético, hipotético deductivo, análisis documental y la entrevista. Resultados: Se elaboró una guía de autoayuda sobre fractura de cadera en el adulto mayor, a partir de falencias detectadas en la atención primaria de salud, que limitan el desempeño de los médicos de este nivel en actividades de promoción de salud en este grupo social. La guía de autoayuda fue diseñada y estructurada, como medio de enseñanza de estrategias de superación profesional, determinando las particularidades del contenido que se desea enseñar y las que se necesitan aprender por estos profesionales, para mejorar su desempeño en la promoción de salud en relación con el adulto mayor con fractura de cadera. Su creación fue concebida como elemento dinamizador del contenido unido a los demás componentes del proceso en busca de lograr los objetivos propuestos. Conclusiones: Se presenta una guía de la colección de autoayuda sobre fractura de cadera en el adulto mayor, diseñado, pensado y elaborado como medio de enseñanza a utilizar en la superación profesional del médico de la atención primaria de salud donde se resaltan los fundamentos teóricos que lo sustentan.
Introduction: Teaching media are the backbone of a large part of the teaching and learning actions developed at every educational level or modality. Objectives: To systematize and highlight the rationale and advantages of the self-help guide for hip fracture in the elderly, considered as a teaching tool in the professional improvement of primary health care ( PHC). Methods: Analytical - synthetic, hypothetical - deductive, documentary analysis and interview. Results: A self-help guide for hip fracture in the elderly was developed, based on deficiencies detected on PHC, which limit the performance of doctors at this level in health promotion activities for the mentioned social group. The self-help guide was designed and structured as a means of teaching professional improvement strategies by determining the content particularities to be taught and those to be learned by these professionals, in order to improve their performance in health promotion for the elderly with hip fracture. This self- help guide was conceived as a dynamic element of the content, that relates to the other components of the process in search of achieving the proposed objectives. Conclusions: We present a self-help collection guide for hip fracture in the elderly, designed, conceived, and elaborated as a teaching tool to be used in the professional improvement of the PHC, and we highlight theoretical foundations
Subject(s)
Aged , Fractures, Bone , Primary Health Care , Teaching , HipABSTRACT
Abstract Objective The treatment of Colles fracture can deform the wrist. Some studies claim the resulting deformity rarely hinders daily activities, whereas others report the opposite; thus, anatomical reduction is desirable. Our objective was to analyze the anatomical and functional results of Colles fracture to find out the values of individual parameters corresponding to the best functional outcome. Methods The present prospective study included 70 elderly patients with Colles fracture. All patients were managed conservatively. The anatomical parameters were evaluated by measuring dorsal angulation, radial inclination, and radial height, and they were assessed as per Stewart et al. The functional result was assessed by the Mayo wrist score. The results were analyzed using the chi-squared test of association, and a p-value < 0.001 was considered statistically significant and to examine strengths of associations; we computed odds ratios (ORs) with 95% confidence intervals (CI). Results Excellent and good results were obtained in 68.5% of the cases anatomically and 78.5% functionally, which was statistically significant (p= 0.0009). Out of the three anatomical parameter dorsal angulation < 10° and loss of radial inclination < 9° showed statistically significant association with functional results (p= 0.0006), but loss of radial height < 6 mm did not (p= 0.0568), which became significant when loss of radial height was kept < 4 mm (p= 0.00062). Conclusion Fractures with anatomical reduction have better functional results. The acceptable borderline anatomical parameters for obtaining excellent or good functional results are dorsal angulation < 10°, loss of radial inclination < 9°, and loss of radial height < 4 mm.
Resumo Objetivo O tratamento da fratura de Colles pode deformar o pulso. Alguns estudos afirmam que essa deformidade raramente dificulta as atividades diárias, enquanto outros relatam o contrário; assim, a redução anatômica é desejável. Nosso objetivo foi analisar os resultados anatômicos e funcionais da fratura de Colles para descobrir os valores de parâmetros individuais correspondentes ao melhor desfecho funcional. Métodos Este estudo prospectivo incluiu 70 pacientes idosos com fratura de Colles. Todos os pacientes foram tratados de forma conservativa. Os parâmetros anatômicos foram a angulação dorsal, a inclinação radial e a altura radial, avaliados de acordo com Stewart et al. O resultado funcional foi avaliado segundo a tabela de pontuação de pulso Mayo. Os resultados foram analisados por meio do teste de associação do qui-quadrado, considerando o valor de p< 0,001 estatisticamente significativo. A força das associações foi analisada por razões de possibilidades com intervalos de confiança de 95%. Resultados Excelentes e bons resultados anatômicos e funcionais foram obtidos em 68,5% e 78,5% dos casos, respectivamente, com diferença estatística significativa (p= 0,0009). Dos três parâmetros anatômicos, a angulação dorsal inferior a 10° e a perda da inclinação radial inferior a 9° apresentaram associação estatisticamente significativa com os resultados funcionais (p= 0,0006), mas não a perda de altura radial inferior a 6 mm (p= 0,0568); no entanto, a perda da altura radial inferior a 4 mm foi associada de forma significativa aos desfechos funcionais (p= 0,00062). Conclusão As fraturas com redução anatômica apresentam melhores desfechos funcionais. Os parâmetros anatômicos limítrofes aceitáveis para a obtenção de resultados funcionais excelentes ou bons são angulação dorsal inferior a 10°, perda da inclinação radial inferior a 9° e perda da altura radial inferior a 4 mm.
Subject(s)
Humans , Aged , Aged, 80 and over , Congenital Abnormalities , Activities of Daily Living , Chi-Square Distribution , Prospective Studies , Fractures, Bone , Fracture Dislocation/surgeryABSTRACT
Abstract Complex proximal humeral fractures, especially in elderly patients, often require arthroplastic surgical treatment. Traditionally, shoulder hemiarthroplasty (HA) is the method of choice, resulting in long implant survival and a painless shoulder; however, shoulder HA has heterogeneous clinical outcomes related to the correct position of the implant, both in terms of height and version, and the anatomical consolidation of tuberosities. Today, reverse shoulder arthroplasties are increasingly used to treat such fractures. These techniques result in better functional outcomes compared to HAs, especially regarding anterior flexion, but implant longevity has not been established. The development of specific prosthetic humeral components for the treatment of fractures, which were recently introduced in the clinical practice, led to better clinical outcomes.
Resumo Fraturas complexas da extremidade proximal do úmero, especialmente em idosos, frequentemente necessitam de tratamento cirúrgico artroplástico. Tradicionalmente, a hemiartroplastia (HA) do ombro é o método de escolha, com longa sobrevida do implante, e oferece um ombro indolor, mas com resultados clínicos heterogêneos, relacionados ao correto posicionamento do implante quanto à altura e à versão, além da consolidação anatômica dos tubérculos. Atualmente, a utilização de artroplastias reversas do ombro para o tratamento dessas fraturas vêm aumentando exponencialmente, com melhores resultados funcionais do que as HAs, principalmente quanto à flexão anterior, apesar de a longevidade do implante ainda não ter sido estabelecida. O desenvolvimento de componentes umerais protéticos específicos para o tratamento de fraturas, introduzidos na prática clínica nos últimos anos, levou a resultados clínicos melhores.
Subject(s)
Humans , Aged , Fractures, Bone/surgery , Arthroplasty, Replacement, ShoulderABSTRACT
Objetivo: Analisar os custos das internações de pacientes com traumas ortopédicos internados em um hospital de referência. Métodos: Estudo quantitativo analítico. A pesquisa teve amostra de 200 prontuários. Foram utilizados testes de Mann-Whitney e Kruskal-Wallis e correlação de Spearman para a comparação dos valores médios das Autorizações de Internação Hospitalar (AIHs) e as características sociodemográficas e clínicas; significância de 5% e confiança de 95%. Resultados: Em relação aos resultados obtidos do valor médio das AIHs, segundo as características sociodemográficas e clínica, o sexo de maior custo foi o feminino (1.673,2) (p = 0,0016), com lesão localizada no quadril (1.973,8) (p = 0,0002), na parte anatômica do fêmur (2.595,3) (p = 0,0001). Houve destaque para a prevalência de pacientes com possíveis sequelas (1.924,2) (p = 0,0185) e óbito (3.919,4) (p = 0,1015). Conclusão: No estudo, foi identificado que os maiores custos de internações foram relacionados a pacientes do sexo feminino, com lesões em fêmur, tendo como etiologia a queda; ademais, fraturas expostas e localizadas na região do quadril possuem custos elevados. Possíveis sequelas e óbitos também têm valores maiores em relação aos custos das AIHs.
Objective: To analyze the costs of hospitalizations of patients with orthopedic trauma admitted to a referral hospital. Methods: Analytical quantitative study. The research had a sample of 200 medical records. The Mann-Whitney, Kruskal-Wallis and Spearman correlation tests were used to compare the mean values of Hospital Admission Authorizations (HAAs) and the sociodemographic and clinical characteristics; 5% significance and 95% confidence. Results: The results obtained from the average value of HAAs according to sociodemographic and clinical characteristics, the sex with the highest cost was female (1,673.2) (p = 0.0016), with location in the hip (1,973.8) (p = 0.0002 ), in the anatomical part of the femur (2,595.3) (p = 0.0001). The prevalence of patients with possible sequelae (1,924.2) (p = 0.0185) and death (3,919.4) (p = 0.1015) was highlighted. Conclusion: In the study, it was identified that the highest costs of hospitalizations were female patients, with injuries to the femur and whose etiology was the fall; in addition, open fractures located in the hip region have high costs. Possible sequelae and deaths also have higher values in relation to the costs of HAAs.
Subject(s)
Wounds and Injuries , Epidemiology , Costs and Cost Analysis , Fractures, BoneABSTRACT
Se expone el caso de un paciente de 19 años, sin antecedentes médicos, con historia de traumatismo en el muslo derecho, que tuvo acortamiento, edema, rotación del miembro inferior derecho y dolor. En la radiografía se identificó una fractura en el tercio proximal de fragmentos múltiples de la diáfisis con engrosamiento y reacción perióstica que generaron una sospecha de un tumor óseo. La resonancia magnética confirmó una neoplasia ósea de características malignas en el tercio superior del fémur con destrucción de la cortical e invasión del canal endomedular sin signos de lesiones metastásicas. La biopsia confirmó el diagnóstico de sarcoma de Ewing localizado. El manejo intrahospitalario consistió en antiinflamatorios e inmovilización del miembro inferior derecho por 21 días. Luego, recibió tres ciclos de quimioterapia con el esquema para sarcoma de Ewing fase I. Además, se indicó terapia física, tratamiento ambulatorio con analgésico, radioterapia y finalmente se practicará la resección parcial de cadera. Se evidenció disminución del edema local, control del dolor con medicamentos orales y recuperación de la movilidad, aunque mantuvo la limitación funcional del miembro inferior derecho que imposibilita la bipedestación y la deambulación
A 19-year-old patient, with no previous medical history, with a history of trauma to the right thigh, presented with shortening, edema, rotation of the right lower limb and pain. Radiography identified a fracture in the proximal third of multiple fragments of the diaphysis with thickening and periosteal reaction that generated a suspicion of a bone tumor. MRI confirmed a bone neoplasm of malignant characteristics in the upper third of the femur with destruction of the cortex and invasion of the end medullary canal without signs of metastatic lesions. The biopsy confirmed the diagnosis of localized Ewing's sarcoma. The intrahospital management consisted of anti-inflammatory drugs and immobilization of the right lower limb for 21 days. Then, she received three cycles of chemotherapy with the Ewing sarcoma phase 1 scheme. In addition, physical therapy, outpatient treatment with analgesic, radiotherapy and finally partial hip resection was indicated. There was a decrease in local edema, pain control with oral medications, mobility was recovered, although the functional limitation of the right lower limb was maintained, making it impossible to stand and walk
Subject(s)
Sarcoma, Ewing , Wounds and Injuries , Fractures, Bone , Patients , Biopsy , Bone and Bones , El SalvadorABSTRACT
Introducción: La osteoporosis es una enfermedad del sistema esquelético provocada por una disminución progresiva de la densidad mineral ósea y el deterioro de la microarquitectura, que aumenta el riesgo de fracturas. Por tanto, se hace necesario adoptar medidas de diagnóstico que permitan la detección temprana de alteraciones de la densidad mineral. Dado que las radiografías dentales son rutinarias y permiten examinar las estructuras óseas de los maxilares, se han propuesto como herramientas primarias de diagnóstico de osteoporosis. Objetivo: Examinar la viabilidad y el avance del uso de radiografías periapicales y panorámicas como predictoras tempranas de osteoporosis. Comentarios principales: Fue realizada una revisión bibliográfica sobre cómo las radiografías periapicales y panorámicas, junto con técnicas de aprendizaje automático e índices morfométricos, pueden ser predictores tempranos de osteoporosis. Consideraciones globales: Radiografías panorámicas y periapicales pueden ayudar en la predicción precoz de osteoporosis. Para ello el odontólogo debe contar con amplia experiencia en la interpretación de imágenes radiográficas o ser especialista en radiología oral o cirugía maxilofacial. Por otro lado, existen herramientas computacionales fundamentadas en aprendizaje automático que han mostrado resultados de identificación de osteoporosis comparables a los arrojados por radiólogos. Estas herramientas pueden servir de apoyo a profesionales menos experimentados. Los odontólogos están llamados a ser los primeros inspectores de cambios anómalos en la densidad ósea. Deben remitir oportunamente los pacientes con sospecha de osteoporosis al médico especialista(AU)
Introduction: Osteoporosis is a disease of the skeletal system caused by a gradual reduction in bone mineral density and deterioration of the microarchitecture, raising the risk of fracture. It is therefore necessary to implement diagnostic actions allowing early detection of mineral density alterations. Given the fact that dental radiographs are routine practice and make it possible to examine the bone structure of maxillae and mandibles, they have been proposed as primary tools for osteoporosis diagnosis. Objective: Examine the viability of and progress in the use of periapical and panoramic radiographs as early predictors of osteoporosis. Main remarks: A review was conducted about the combined use of panoramic and periapical radiographs. Both are machine learning techniques and morphometric indices. General considerations: Panoramic and periapical radiographs may be useful for early prediction of osteoporosis. To achieve this end, dentists should have broad experience interpreting radiographic images or be specialists in oral radiology or maxillofacial surgery. On the other hand, computer tools based on machine learning are available which have obtained results in osteoporosis identification comparable to those obtained by radiologists. Those tools may support the work of less experienced professionals. Dentists should be the first to detect anomalous bone density changes, timely referring patients suspected of osteoporosis to the corresponding specialist(AU)