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1.
Rev Bras Ortop (Sao Paulo) ; 57(4): 689-696, 2022 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-35966434

RESUMO

Objective To evaluate the sensitivity and specificity of the quantitative real-time polymerase chain reaction (qPCR) for 16S rDNA gene screening using sonicated fluid from orthopedic implants. Methods A retrospective study was conducted on 73 sonicated fluids obtained from patients with infection associated with orthopedic implants. The samples were subjected to conventional culture and molecular testing using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and qPCR for 16S rDNA . The cycle threshold values were used to define a cut-off of the qPCR of the 16S rDNA for negative and positive cultures. Results No statistical differences were observed between the positive and negative culture groups based on the time from the first surgery to infection ( p = 0.958), age ( p = 0.269), or general comorbidities. Nevertheless, a statistical difference was found between the mean duration of antibiotic use before device removal (3.41 versus 0.94; p = 0.016). Bacterial DNA was identified in every sample from the sonicated fluids. The median cycle thresholds of the positive and negative cultures were of 25.6 and 27.3 respectively ( p < 0.001). As a diagnostic tool, a cycle threshold cut-off of 26.89 demonstrated an area under the curve of the receiver operating characteristic of 0.877 ( p ≤ 0.001). Conclusion The presence of antimicrobial agents for more than 72 hours decreased culture positivity, but did not influence the qPCR results. Despite this, amplification of the 16S rDNA may overestimate infection diagnosis.

2.
Rev. bras. ortop ; 57(4): 689-696, Jul.-Aug. 2022. tab, graf
Artigo em Inglês | LILACS-Express | LILACS | ID: biblio-1394867

RESUMO

Abstract Objective To evaluate the sensitivity and specificity of the quantitative real-time polymerase chain reaction (qPCR) for 16S rDNA gene screening using sonicated fluid from orthopedic implants. Methods A retrospective study was conducted on 73 sonicated fluids obtained from patients with infection associated with orthopedic implants. The samples were subjected to conventional culture and molecular testing using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and qPCR for 16S rDNA. The cycle threshold values were used to define a cut-off of the qPCR of the 16S rDNA for negative and positive cultures. Results No statistical differences were observed between the positive and negative culture groups based on the time from the first surgery to infection (p= 0.958), age (p =0.269), or general comorbidities. Nevertheless, a statistical difference was found between the mean duration of antibiotic use before device removal (3.41 versus 0.94; p =0.016). Bacterial DNA was identified in every sample from the sonicated fluids. The median cycle thresholds of the positive and negative cultures were of 25.6 and 27.3 respectively (p< 0.001). As a diagnostic tool, a cycle threshold cut-off of 26.89 demonstrated an area under the curve of the receiver operating characteristic of 0.877 (p≤ 0.001). Conclusion The presence of antimicrobial agents for more than 72 hours decreased culture positivity, but did not influence the qPCR results. Despite this, amplification of the 16S rDNA may overestimate infection diagnosis.


Resumo Objetivo Avaliar a sensibilidade e a especificidade da reação em cadeia de polimerase em tempo real quantitativa (quantitative real-time polymerase chain reaction, qPCR, em inglês) para a triagem do gene rDNA 16S, com a utilização do fluido sonicado de implantes ortopédicos. Métodos Um estudo retrospectivo foi realizado em 73 fluidos sonicados obtidos de pacientes com infecção associada aos implantes ortopédicos. As amostras foram submetidas a cultura convencional e a teste molecular utilizando ionização e dessorção a laser assistida por matriz com espectrometria de massa por tempo de voo (matrix-assisted laser desorption/ionization time-of-flight mass spectrometry, MALDI-TOF MS, em inglês) e qPCR para o gene rDNA 16S. Os valores limiares do ciclo foram usados para definir um ponto de corte para a qPCR do gene rDNA 16S para culturas negativas e positivas. Resultados Não foram observadas diferenças estatísticas entre os grupos de cultura positiva e negativa com base no tempo desde a primeira cirurgia até a infecção (p= 0,958), na idade (p= 0,269), ou nas comorbidades em geral. No entanto, uma diferença estatística foi encontrada entre a duração média do uso de antibióticos antes da remoção do dispositivo (3,41 versus 0,94; p= 0,016). O DNA bacteriano foi identificado em todas as amostras dos fluidos sonicados. Os limiares do ciclo médio de culturas positivas e negativas foram de 25,6 e 27,3, respectivamente (p< 0,001). Como uma ferramenta de diagnóstico, um corte do limite do ciclo de 26,89 demonstrou uma área sob a curva da característica de operação do receptor de 0,877 (p ≤ 0,001). Conclusão A presença de agentes antimicrobianos por mais de 72 horas diminuiu a positividade da cultura, mas não influenciou os resultados da qPCR. Apesar disso, a amplificação do rDNA 16S pode sobrestimar o diagnóstico de infecção.

3.
Circ Cardiovasc Imaging ; 15(7): e014138, 2022 07.
Artigo em Inglês | MEDLINE | ID: mdl-35861980

RESUMO

BACKGROUND: Although the transcatheter closure of atrial septal defect was established as the treatment of choice several decades ago, the process of device neoendothelialization (NE) in humans is not well understood. We aimed to measure the extent of device NE using cardiac computed tomography angiography and analyze its risk factors. METHODS: Between January 2005 and February 2021, we retrospectively reviewed 164 devices of 112 patients on cardiac computed tomography angiography. We investigated device shape, contrast opacification within the device that differentiated device NE, and device-related thrombosis or vegetation. Risk factor analysis for major adverse cardiovascular events and incomplete NE according to the postprocedural period was performed. RESULTS: Seventy patients (62.5%) were women, with a median (range) age at the time of device closure of 44.5 (0.6-79.2) years. The mean (±SD) defect size was 16.6 (±7.8) mm, and patients were followed for 35.9±33.9 months. After 6 months of device implantation, 35% of the devices (42/120) had incomplete NE. The intensity of intradevice opacification shifted from complete to partial or nonopacification over time (P<0.001), and a similar pattern was observed in the shunt flow (P<0.001). The bulkiness of devices also decreased in proportion to the postprocedural period (P<0.001). Risk analysis revealed device diameter (hazard ratio, 1.18 [95% CI, 1.04-1.27]; P<0.001) as the only significant factor of incomplete NE and major adverse events. CONCLUSIONS: Incomplete NE of atrial septal defect devices was identified on cardiac computed tomography angiography in significant numbers after 6 months of the procedure. The device diameter was related to incomplete NE and major adverse events. Further prospective and multicenter studies are warranted to validate this new assessment of device NE.


Assuntos
Angiografia por Tomografia Computadorizada , Comunicação Interatrial , Cateterismo Cardíaco , Feminino , Comunicação Interatrial/diagnóstico por imagem , Comunicação Interatrial/cirurgia , Humanos , Masculino , Próteses e Implantes , Estudos Retrospectivos , Resultado do Tratamento
4.
Acta Ortop Bras ; 30(3): e245117, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35694022

RESUMO

Current scientific evidence enhances the importance of the anatomic restauration of vertebral bodies with compression fractures aiming, as with other human body joints, to obtain a biomechanic and functional spine as close as the one prior to the fracture as possible. We consider that anatomic reduction of these fractures is only completely possible using intravertebral expandable implants, restoring vertebral endplate morphology, and enabling a more adequate intervertebral disc healing. This enables avoiding disc and osteodegenerative changes to that vertebral segment and its adjacent levels, as well as the anterior overload of adjacent vertebral bodies in older adults - a consequence of post-traumatic vertebral flattening - thus minimizing the risk of adjacent vertebral fractures. The ability of vertebral body fracture reduction and height maintenance over time and its percutaneous transpedicular application make the intra-vertebral expandable implants a very attractive option for treating these fractures. The authors show the direct and indirect reduction concepts of vertebral fractures, review the biomechanics, characteristics and indications of intravertebral expandable implants and present a suggestion for updating the algorithm for the surgical treatment of vertebral compression fractures which includes the use of intravertebral expandable implants. Level of Evidence V, Expert Opinion.


A evidência científica atual aponta para a importância de obter restauração anatómica dos corpos vertebrais com fraturas em compressão, tal como acontece em outras articulações do corpo humano, de modo a garantir uma coluna biomecânica e funcionalmente mais próxima da prévia à fratura. Consideramos que a redução anatómica destas fraturas apenas se consegue na totalidade com a aplicação de implantes intravertebrais expansíveis, restaurando a morfologia das plataformas vertebrais e assim proporcionando uma cicatrização do disco intervertebral mais adequada. Isto permite minimizar a progressão para alterações disco e osteodegenerativas desse segmento vertebral e dos níveis adjacentes, bem como em idosos evitar a sobrecarga anterior dos corpos adjacentes consequente ao achatamento pós--traumático e assim minimizar o risco de fraturas vertebrais adjacentes. A capacidade de redução da fratura e de manutenção da altura do corpo vertebral ao longo do tempo, bem com a sua aplicação percutânea transpedicular, torna os implantes intravertebrais expansíveis uma opção muito atrativa no tratamento destas fraturas. Os autores apresentam os conceitos de redução direta e indireta de fraturas vertebrais, revêm a biomecânica, características e indicações dos implantes intravertebrais expansíveis, finalizando com uma proposta de atualização do algoritmo de tratamento cirúrgico das fraturas vertebrais em compressão que inclui a aplicação de implantes intravertebrais expansivos. Nível de Evidência V, Opinião do Especialista.

5.
Unfallchirurgie (Heidelb) ; 125(7): 507-517, 2022 Jul.
Artigo em Alemão | MEDLINE | ID: mdl-35725933

RESUMO

CLINICAL ISSUE: Fractures of the distal femur represent rare but serious injuries with a high 1­year mortality. An increasingly older patient population requires adapted treatment concepts. STANDARD TREATMENT PROCEDURE: Surgical treatment using angular stable plating and retrograde nailing is the standard procedure. Conservative treatment is only indicated in cases of low demands and high perioperative risks of the patient. TREATMENT INNOVATIONS: Primary double plate osteosynthesis and primary implantation of a distal femoral replacement represent new treatment procedures and show promising initial results in the collective of geriatric patients. DIAGNOSTIC WORK-UP: Conventional radiographs in 2 planes and computed tomography with multiplanar and 3D reconstructions should be performed to enable an adequate assessment of the indications and treatment planning. PERFORMANCE: Nonunion rates of plate and nail osteosyntheses range from 4% to 10%. No significant differences in long-term results can be observed. The results regarding double plate osteosynthesis and distal femoral replacement so far do not show any disadvantages compared to the existing procedures but there is still insufficient data for general recommendations. ASSESSMENT: Complex fractures with extensive reconstructive procedures and treatment by distal femoral replacement should be performed in specialized centers. PRACTICAL RECOMMENDATIONS: The gold standard is still surgical treatment by means of minimally invasive angular stable plate or retrograde nail osteosynthesis. Complex fracture forms require individual treatment planning considering all currently available treatment options.


Assuntos
Fraturas do Fêmur , Fixação Intramedular de Fraturas , Idoso , Placas Ósseas , Fraturas do Fêmur/diagnóstico por imagem , Fêmur , Fixação Interna de Fraturas/métodos , Fixação Intramedular de Fraturas/métodos , Humanos
6.
Eur Spine J ; 31(9): 2301-2310, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35695968

RESUMO

PURPOSE: The SHILLA™ Growth Guidance system is a stainless-steel rod and screw system used for Early Onset Scoliosis which incorporates a unique flanged set screw designed to capture the rod, while allowing it to slide as the patient grows. Concomitant with this design is the potential for generation of wear debris and for an inflammatory host response. We hypothesized that the magnitude of the host response adjacent to the unlocked screws and rods would be greater than the host response to the locked rod/screws. METHODS: Seven tissue samples adjacent to locked (3) and unlocked screws (4) from three SHILLA patients (mean implantation time of 19 post-operative months) with infantile idiopathic scoliosis were obtained as part of an explant analysis protocol during a PMDA-approved clinical trial in Japan. Gross appearance, high-resolution radiographs, and histology were assessed. ISO Standard 10993 Part 6 was used to assess the host response. RESULTS: All three locked screw had no metallosis. In contrast, metallosis for unlocked screw tissue samples were rated as "ubiquitous" (2/4), "focal" (1/4), or "absent" (1/4). Microscopic metallic debris was found intracellularly and within interstices of fibrous connective tissues more frequently adjacent to unlocked screws compared to locked screws. Cell type and population scoring consistently showed a modestly larger inflammatory response (macrophages) in the unlocked tissue samples. CONCLUSIONS: The peri-prosthetic tissue response to the unlocked rods/screws had a higher reactivity grade (slight reaction, Δ = 4.0) per ISO 10993 Part 6 compared to the locked screws in three patients with the SHILLA™ Growth Guidance scoliosis system.


Assuntos
Escoliose , Fusão Vertebral , Parafusos Ósseos/efeitos adversos , Humanos , Japão , Radiografia , Escoliose/cirurgia , Fusão Vertebral/efeitos adversos , Fusão Vertebral/métodos , Aço Inoxidável
7.
Materials (Basel) ; 15(9)2022 Apr 27.
Artigo em Inglês | MEDLINE | ID: mdl-35591484

RESUMO

This review addresses the different aspects of the use of titanium and its alloys in the production of dental implants, the most common causes of implant failures and the development of improved surfaces capable of stimulating osseointegration and guaranteeing the long-term success of dental implants. Titanium is the main material for the development of dental implants; despite this, different surface modifications are studied aiming to improve the osseointegration process. Nanoscale modifications and the bioactivation of surfaces with biological molecules can promote faster healing when compared to smooth surfaces. Recent studies have also pointed out that gradual changes in the implant, based on the microenvironment of insertion, are factors that may improve the integration of the implant with soft and bone tissues, preventing infections and osseointegration failures. In this context, the understanding that nanobiotechnological surface modifications in titanium dental implants improve the osseointegration process arouses interest in the development of new strategies, which is a highly relevant factor in the production of improved dental materials.

8.
J Oral Maxillofac Res ; 13(1): e3, 2022.
Artigo em Inglês | MEDLINE | ID: mdl-35574211

RESUMO

Objectives: The purpose of this systematic review and meta-analysis is to examine the success rate of osseointegrated dental implants placed secondarily in fibula free flaps using the Albrektsson and colleagues criteria. Material and Methods: A computerized database search was performed using PubMed, Embase, Web of Science and Cochrane CENTRAL. Specific ascertainment criteria were applied for the inclusion of the eligible studies. This systematic review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-analysis PRISMA checklist. Risk of bias was assessed for all the included studies. Results: The meta-analysis was carried using ten studies that met the inclusion criteria. The present review pooled data obtained from 242 patients (167 males and 75 females), with the age range of 13 to 79 years. A total of 848 dental implants were placed in the free fibula flaps. All dental implants were placed in a delayed fashion, ranging from 14 to 192 months. The estimated proportion of successful implants placed in fibula flaps used to reconstruct the maxillomandibular complex was 0.94 or 94% (95% CI [confidence interval] = 0.91 to 0.96]) with an insignificant heterogeneity of 37%, P = 0.12. Using a random effect model the annual implant failure rate was 0.02 with a 95% CI = 0.01 to 0.03. Conclusions: The results of this systematic review and meta-analysis strongly indicate that using objective criteria, delayed implant placement in free fibula flaps is highly successful.

9.
Cureus ; 14(4): e24402, 2022 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-35481239

RESUMO

The most common cause of postoperative fever is infection. Other causes include cancer, iatrogenic causes, venous thromboembolism, secondary to prosthetic implants, and pyrexia of unknown origin. Here, we describe five cases of opioid-induced pyrexia. In all cases, an injection of morphine was given for postoperative analgesia and all those patients developed fever. All the possible causes of fever were excluded and then opioid was substituted with non-steroidal anti-inflammatory agents. Fever subsided in all the cases. Cessation of the offending drug led to the resolution of the fever in all five cases, and the patient required subsequent supportive care. However, adjunctive pharmacotherapy may also be needed in some patients.

10.
Rev. Odontol. Araçatuba (Impr.) ; 43(1): 24-30, jan.-abr. 2022. ilus
Artigo em Português | LILACS, BBO - Odontologia | ID: biblio-1361646

RESUMO

Introdução: As próteses parciais removíveis são alternativas amplamente utilizadas na reabilitação oral de pacientes parcialmente desdentados. Na atualidade os implantes dentais têm sido indicados para tratamento de pacientes edêntulos em associação com próteses parciais removíveis convencionais. Objetivo: Relatar um caso clínico utilizando uma prótese parcial removível convencional associada a implantes osseointegrados em paciente portador de Classe I de Kennedy. Relato de Caso: Paciente N.A.A.S., sexo feminino, 65 anos, procurou atendimento clínico no Instituto de Estudos da Saúde (IES) para reabilitação protética das arcadas dentais superior e inferior. A sua queixa principal era "dificuldade de mastigação". A paciente apresentava prótese total removível insatisfatória na maxila e não utilizava nenhum tipo de prótese dentária na mandíbula, que se apresentava parcialmente edêntula. O tratamento realizado foi a confecção de uma prótese total na arcada superior. Na arcada inferior foram inseridos dois implantes de hexágono externo nas regiões correspondentes às áreas dos dentes 34 e 44, após quatro meses a prótese parcial removível convencional foi confeccionada e incorporada aos implantes osseointegrados utilizando o sistema de retenção do tipo attachments Equator. Conclusão: Os resultados revelaram que a técnica de associação da prótese parcial removível convencional aos implantes osseointegrados demonstrou ser uma opção viável de tratamento com capacidade de devolver a função, a estética e manter a integridade dos dentes e tecidos periodontais(AU)


Introduction: Removable partial dentures are alternatives widely used in the oral rehabilitation of partially edentulous patients. Currently, dental implants have been indicated for the treatment of edentulous patients in association with conventional removable partial dentures. Objective: To report a clinical case using a conventional removable partial denture associated with osseointegrated implants in a patient with Kennedy Class I. Case Report: Patient N.A.A.S., female, 65 years old, sought clinical care at the Institute of Health Studies (HEI) for prosthetic rehabilitation of the upper and lower dental arches. His main complaint was "chewing difficulty". The patient had unsatisfactory removable total prosthesis in the maxilla and did not use any type of dental prosthesis in the mandible, which was partially edentulous. The treatment performed was the manufacture of a total prosthesis in the upper arch. In the lower arch, two external hexagon implants were inserted in the regions corresponding to the tooth areas 34 and 44, after four months the conventional removable partial denture was made and incorporated into the osseointegrated implants using the equator attachments retention system. Conclusion: The results revealed that the technique of associating conventional removable partial dentures with osseointegrated implants proved to be a viable treatment option with the ability to restore function, aesthetics and maintain the integrity of teeth and periodontal tissues(AU)


Assuntos
Humanos , Feminino , Idoso , Implantação Dentária Endóssea , Prótese Parcial Removível , Implantes Dentários , Planejamento de Prótese Dentária , Estética Dentária , Prótese Ancorada no Osso
11.
Unfallchirurgie (Heidelb) ; 125(6): 430-435, 2022 Jun.
Artigo em Alemão | MEDLINE | ID: mdl-35486124

RESUMO

BACKGROUND: Materials with different characteristics are used for cement augmentation and as bone graft substitutes. OBJECTIVE: Cement augmentation and bone graft substitutes are the subject of current research. The evaluation of new knowledge allows its specific application. MATERIAL AND METHODS: Selective literature search and outline of experimental research results on cement augmentation and bone graft substitutes. RESULTS: Augmentation and bone graft substitutes are essential components of current trauma surgical procedures. Despite intensive research all materials have specific disadvantages. Cement augmentation of implants enhances not only the anchorage but also influences the failure mode. CONCLUSION: Cement augmentation has large potential especially in osteoporotic bone. In load-bearing regions acrylic-based cements remain the standard of choice. Ceramic cements are preferred in non-load-bearing areas. Their combination with resorbable metals offers still largely unexplored potential. Virtual biomechanics can help improve the targeted application of cement augmentation.


Assuntos
Substitutos Ósseos , Polimetil Metacrilato , Fenômenos Biomecânicos , Cimentos Ósseos/uso terapêutico , Substitutos Ósseos/uso terapêutico , Fosfatos de Cálcio
12.
Odontol. Sanmarquina (Impr.) ; 25(2): e21098, abr.-jun. 2022.
Artigo em Espanhol | LILACS-Express | LILACS | ID: biblio-1368407

RESUMO

En este artículo se muestra que es posible realizar una prótesis digital con polimetilmetacrilato (PMMA) de forma sencilla con programas gratuitos y una impresora 3D de bajo costo y de fácil manejo. El caso clínico corresponde a un masculino de 38 años de edad quien refiere haber sido operado de urgencia por un hematoma subdural de origen traumático, secundario a una caída desde un andamio de 5 metros de altura, por parte del Servicio de Neurocirugía con una craneotomía descompresiva 10 meses atrás, actualmente presentando un defecto en región supraorbitaria y frontal bilateral y refiriendo cefaleas y mareos constantes con diagnóstico de síndrome del trefinado. Se decide diseñar digitalmente una prótesis con PMMA colocándola bajo anestesia general balanceada en quirófano mediante un acceso coronal, fijándola con tornillos de titanio y reposicionando tejidos con suturas. Se logra eliminar de forma inmediata el defecto visual, la sintomatología desapareció por completo confirmándolo en los controles desde los 7 días. Se muestra que es posible realizar una prótesis craneal personalizada de bajo costo de forma sencilla, resolviendo las molestias y eliminando las secuelas y complicaciones que afectan a los pacientes tratados por craniectomías descompresivas con presencias de defectos.


In this aticle it is showns that it is possible to make a digital prosthesis with Polymethylmethacrylate (PMMA) with free programs and a low-cost and easy-to-use 3D printer. The clinical case corresponds to a 38-year-old male who reported having undergone emergency surgery for a subdural hematoma of traumatic origin, secondary to a fall from a 5-meter-high scaffolding, procedure done by the Neurosurgery Service with a decompressive craniotomy 10 months ago, nowadays he presents a bilateral defect at the supraorbital and frontal region, referring constant headaches and dizziness with a diagnosis of a trephination syndrome. We decided to digitally design a prosthesis with PMMA, placing it under balanced general anesthesia in the operating room through a coronal approach, fixing it with titanium screws and repositioning tissues with sutures. The visual defect was immediately eliminated, the symptoms disappeared completely, confirming it at the controls since day 7. It is shown that it is possible to perform a low-cost personalized cranial prosthesis in a simple way, solving the discomfort and eliminating the sequelae and complications that affect patients treated by decompressive craniectomies with the presence of defects.

13.
Rev. bras. cir. plást ; 37(1): 125-131, jan.mar.2022. ilus
Artigo em Inglês, Português | LILACS-Express | LILACS | ID: biblio-1368280

RESUMO

O estudo desenvolvido tem como objetivo analisar artigos já publicados na área da mamoplastia de aumento, analisar as diversas técnicas de procedimentos utilizadas para colocação de próteses de mama, ressaltando suasincisão cirúrgica são decisões muito importantes que devem ser tomadas em conjunto (médico paciente), levando em consideração as vantagens e desvantagens de cada incisão. É indispensável um bom esclarecimento pré-operatório clínico que permita objetivar as metas a serem alcançadas, evitando, assim, possíveis cirurgias de reparo ou troca do tamanho da prótese. O enaltecimento da beleza exterior tem ganhado cada vez mais espaço, prova disso são consultórios dos cirurgiões plásticos cada vez mais cheios. Os EUA é o país campeão em cirurgias plásticas, e logo em seguida vem o Brasil. A mamoplastia de aumento é a segunda cirurgia mais realizada mundialmente, perdendo apenas para a lipoaspiração. Pessoas buscam esse método como alternativa para melhorar a autoestima, ou para tentar se inserir em um padrão de beleza "fictício" estabelecido pela sociedade. O presente trabalho conta com uma metodologia de estudo do tipo revisão bibliográfica narrativa. O instrumento utilizado foi revisão de literatura e método comparativo entre artigos já publicados na área da cirurgia plástica com foco em mamoplastia de aumento baseado no método indutivo. O estudo foi fundamentado em artigos internacionais e nacionais, usando como fonte de pesquisa a SciELO e The Lancet.


The study aims to analyze articles already published in breast augmentation, to analyze the various procedural techniques used for the placement of breast prostheses, highlighting their disadvantages and advantages, types and evolution of prostheses. The choice of prosthesis and the type of Surgical incisions are very important decisions that must be taken together (doctor and patient), taking into account the advantages and disadvantages of each incision. A good clinical preoperative explanation is essential to determine the goals to be achieved, thus avoiding possible repair surgeries or replacement of the size of the prosthesis. The enhancement of external beauty has gained more and more space, proof of which is the increasingly crowded plastic surgeons' offices. The USA is the champion country in plastic surgery, followed by Brazil. Augmentation mammoplasty is the second most performed surgery worldwide, second only to liposuction. People seek this method as an alternative to improve self-esteem or to try to fit into a "fictitious" beauty standard established by society. The present work has a study methodology of the narrative bibliographic review type. The instrument used was a literature review and a comparative method between articles published in plastic surgery, focusing on breast augmentation based on the inductive method. The study was based on international and national articles, using SciELO and The Lancet as research sources.

14.
Ann Transl Med ; 10(4): 221, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35280391

RESUMO

Background: The objective of the current study was to retrospectively examine the morphological magnetic resonance imaging (MRI) characteristics of the gluteus maximus of buttock augmentation at levels of predetermined anatomic points. Methods: The present study was a retrospective cross-sectional study. Adult women who underwent high-quality MRI scanning at Sun Yat-sen Memorial Hospital of Sun Yat-sen University from January 2018 to January 2021 were included in this work. The transverse MRI data measured at the inferior point of the sacroiliac joint, just above the femoral head, and at the ischial tuberosity were collected and statistically analyzed. Results: Fifty-two cases (104 sides of female gluteus maximus) were included in the final analysis. The A point (surgery starting point) were 54.4±6.34 mm, 54.91±5.57 mm, and 73.91±5.57 mm away from the posterior midline at the level of inferior point of the sacroiliac joint, just above the femoral head, and at the ischial tuberosity, respectively. Accordingly, the thickness of the muscle at these locations was 16.0±4.17 mm, 23.4±4.40 mm, and 24.6±7.58 mm, respectively. The diameter of the implant did not exceed 14.18±1.22 cm. In addition, the gluteus maximus at the lowest point of the sacroiliac joint and above the femoral head exhibited an arc structure, which needs to be tilted to the deep plane during separation. Conclusions: Dissimilar from previous experience of blind dissection, the gluteus maximus muscle can be more scientifically and reasonably dissected using the indexes for gluteus augmentation supplied in this study.

15.
Unfallchirurg ; 125(5): 361-370, 2022 May.
Artigo em Alemão | MEDLINE | ID: mdl-35312794

RESUMO

The importance of 3D printing applications in the surgery of musculoskeletal tumors has increased in recent years. Even prior to the era of 3D printing, computer-assisted techniques, such as navigation, have proved their utility. Due to the variable appearance of bone tumors, there is a need for individual solutions. The 3D printing can be used for the development of anatomical demonstration models, the construction of patient-specific instruments and custom-made implants. For these three applications, different regulatory hurdles exist. Especially for the resection of pelvic tumors, 3D printing technologies seem to provide advantages due to the complicated anatomy and the proximity to relevant neurovascular structures. With the introduction of titanium printing, construction of individualized implants that fit exactly into the defect became feasible.


Assuntos
Neoplasias Ósseas , Doenças Musculoesqueléticas , Neoplasias Ósseas/diagnóstico por imagem , Neoplasias Ósseas/cirurgia , Humanos , Modelos Anatômicos , Impressão Tridimensional , Próteses e Implantes
16.
J Clin Orthop Trauma ; 25: 101780, 2022 Feb.
Artigo em Inglês | MEDLINE | ID: mdl-35145849

RESUMO

Orthopaedic device-related infection (ODRI) represent is one of the most challenging complications to manage in orthopaedic and trauma surgery. Biofilm formation is one of the crucial steps in the development of implant related orthopaedic infections due to the surface-adherent bacteria. Bacterial biofilms have several innate antimicrobial resistance mechanisms and hence difficult to eliminate with conventional antibiotics. Chronic, indolent, unresponsive infection can lead to clinical disability affecting quality of life with socio-economic consequences and compromised patient related health care outcomes. Although there is a basic understanding of the mechanism of biofilm associated antimicrobial resistance, enhanced knowledge, innovative treatment strategies and new therapeutic modalities is the need of the hour to manage biofilm associated Orthopaedic device-related infection (ODRI). Antimicrobial peptides (AMPs) represent an exciting opportunity to treat biofilm infections due to their diverse mechanisms of action. This article highlights the current role and mechanism of Antimicrobial peptides (AMPs) in preventing and eradicating Orthopaedic device-related infection (ODRI).

17.
J Orthop Surg Res ; 17(1): 122, 2022 Feb 23.
Artigo em Inglês | MEDLINE | ID: mdl-35197101

RESUMO

BACKGROUND: Changes in spinal mobility after vertebral fusion are important factors contributing to adjacent vertebral disease (ASD). As an implant for spinal non-fusion, the motion-preserving prosthesis is an effective method to reduce the incidence of ASD, but its deficiencies hamper the application in clinical. This study designs a novel motion-preserving artificial cervical disc and vertebra complex with an anti-dislocation mechanism (MACDVC-AM) and verifies its effect on the cervical spine. METHODS: The MACDVC-AM was designed on the data of healthy volunteers. The finite element intact model, fusion model, and MACDVC-AM model were constructed, and the range of motion (ROM) and stress of adjacent discs were compared. The biomechanical tests were performed on fifteen cervical specimens, and the stability index ROM (SI-ROM) were calculated. RESULTS: Compared with the intervertebral ROMs of the intact model, the MACDVC-AM model reduced by 28-70% in adjacent segments and increased by 26-54% in operated segments, but the fusion model showed the opposite result. In contrast to the fusion model, the MACDVC-AM model diminished the stress of adjacent intervertebral discs. In biomechanical tests, the MACDVC-AM group showed no significant difference with the ROMs of the intact group (p > 0.05). The SI-ROM of the MACDVC-AM group is negative but close to zero and showed no significant difference with the intact group (p > 0.05). CONCLUSIONS: The MACDVC-AM was successfully designed. The results indicate that the MACDVC-AM can provide physiological mobility and stability, reduce adjacent intervertebral compensatory motion, and alleviate the stress change of adjacent discs, which contributes to protect adjacent discs and reduce the occurrence of ASD.


Assuntos
Biomimética , Vértebras Cervicais/cirurgia , Disco Intervertebral/cirurgia , Fusão Vertebral/métodos , Adulto , Fenômenos Biomecânicos , Biomimética/tendências , Vértebras Cervicais/diagnóstico por imagem , Feminino , Análise de Elementos Finitos , Humanos , Disco Intervertebral/fisiologia , Masculino , Pessoa de Meia-Idade , Amplitude de Movimento Articular/fisiologia , Doenças da Coluna Vertebral
18.
Arch Phys Med Rehabil ; 103(9): 1723-1729, 2022 09.
Artigo em Inglês | MEDLINE | ID: mdl-35123974

RESUMO

OBJECTIVE: To compare characteristics between middle-aged and older prosthesis users with and without cognitive impairment and determine whether cognitive impairment contributes to variability in perceived physical function. DESIGN: Cross-sectional, observational study SETTING: General community. PARTICIPANTS: Adults 45 years or older, at least 1-year post lower limb amputation (LLA) who were walking independently with a prosthesis (N=119). INTERVENTION: Not applicable. MAIN OUTCOME MEASURES: We identified cognitive impairment using an education-adjusted Telephone Interview for Cognitive Status-modified score. Perceived physical function was measured using the Prosthesis Mobility Questionnaire. RESULTS: Of 119 participants (mean age, 62.6±8.2 years; male: 89.1%; vascular etiology: 82.4%; years since amputation: 4.9±4.7 years), 28 (23.5%) had cognitive impairment. Compared with participants without cognitive impairment, those with cognitive impairment were more likely to use an assistive device (60.7% vs 25.3%, P=.002); were older (66.3±7.3 vs 61.5±8.1 years, P=.006) and had more chronic conditions (7.1±3.4 vs 5.4±2.5, P=.004), more depressive symptoms (6.6±5.1 vs 4.2±3.8, P=.008), and worse perceived physical function (2.0±0.6 vs 2.6±0.7, P<.001). Using backward stepwise linear regression, we found that participants with cognitive impairment had worse perceived physical function (standardized parameter estimate [ß]=-0.15, P=.02), even after adjusting for depressive symptoms (ß=-0.31, P<.001), prosthesis satisfaction (ß=0.34, P<.001), number of chronic conditions (ß=-0.19, P=.006), and assistive device use (ßcane=0.01, P=.93; ßother=-0.20, P=.003). Together, these variables explained 59% of perceived physical function variability. CONCLUSIONS: Cognitive impairment is common and associated with worse perceived physical function post LLA, even after controlling for physical and mental health differences. Tailored rehabilitation interventions may be needed to improve perceived physical function in prosthesis users with cognitive impairment.


Assuntos
Membros Artificiais , Disfunção Cognitiva , Idoso , Amputação/reabilitação , Estudos Transversais , Feminino , Humanos , Masculino , Pessoa de Meia-Idade , Caminhada
19.
Zhongguo Gu Shang ; 35(1): 54-8, 2022 Jan 25.
Artigo em Chinês | MEDLINE | ID: mdl-35130600

RESUMO

OBJECTIVE: To investigate the effect of tibial coronal curvature on the alignment of tibial prosthesis in patients undergoing total knee arthroplasty (TKA). METHODS: From July 2019 to April 2021, 100 patients with knee osteoarthritis were treated with total knee arthroplasty. Before operation, the full-length films of lower limbs were taken and the tibial bowing angle(TBA) was measured. TBA more than 2° was tibial bending, which was divided into tibial bending group and non bending group. There were 40 cases in tibial bending group, 9 males and 31 females, aged 56 to 84 years old with an average of (69.22±7.10) years. There were 60 cases in the non bending group, 19 males and 41 females, aged from 51 to 87 years old with an average of (70.80±7.21) years. The preoperative tibial length (TL) and medial proximal tibial angle (MPTA) were measured and compared between the two groups. The full-length X-rays of the lower limbs were taken again 3 days to 1 week after operation. The medial angle of the tibial component coronal aligement angle (TCCA) and the outilier rate of force line of the tibial prosthesis were measured and compared between the two groups. Pearson method was used to analyze the correlation between TCCA and age, TCCA and height, TCCA and weight, TCCA and BMI, TCCA and TBA, TCCA and TL, TCCA and MPTA; Spearman method was used to analyze the correlation between TCCA and gender, TCCA and Kellgren-Lawrence(K-L) grade. RESULTS: All 100 patients successfully completed the operation and obtained satisfactory full-length X-rays in standing position. There was no significant difference in TL, MPTA and TCCA between bending group and non bending group(P>0.05). The outilier rate of force line in tibial bending group was 22.5%, and that in non bending group was 6.67%, the difference was statistically significant(P<0.05). The correlation study found that TCCA was strongly correlated with TBA(r=-0.702, P<0.01), weakly correlated with MPTA(r=0.311, P<0.01), and had no correlation with other parameters(P>0.05). CONCLUSION: In patients with knee osteoarthritis undergoing total knee arthroplasty, tibial bending will lead to poor force line of tibial prosthesis. During operation, attention should be paid to osteotomy of proximal tibial vertical tibial mechanical axis and correct installation of prosthesis to avoid poor alignment of prosthesis.


Assuntos
Artroplastia do Joelho , Prótese do Joelho , Osteoartrite do Joelho , Idoso , Idoso de 80 Anos ou mais , Artroplastia do Joelho/efeitos adversos , Feminino , Humanos , Articulação do Joelho/diagnóstico por imagem , Articulação do Joelho/cirurgia , Prótese do Joelho/efeitos adversos , Masculino , Pessoa de Meia-Idade , Osteoartrite do Joelho/cirurgia , Estudos Retrospectivos , Tíbia/cirurgia
20.
Unfallchirurg ; 125(4): 266-274, 2022 Apr.
Artigo em Alemão | MEDLINE | ID: mdl-35212810

RESUMO

BACKGROUND: After transfemoral amputation a prosthesis is required to restore autonomous standing and bipedal locomotion. Attachment of the prosthesis can be achieved either classically via socket suspension with a shaft in the stump or directly via implantation of an intramedullary transcutaneous femoral prosthesis (osseointegrated prosthesis). AIM: A fully instrumented gait analysis should enable objectification of the anticipated advantages of the EEP with respect to the gait pattern and individual mobility. MATERIAL AND METHODS: In two patients with a unilateral transfemoral amputation a comprehensive gait analysis was carried out prior to and 6 months (patient 1) or 11 and 20 months (patient 2) after switching from a socket prosthesis to an EEP. This was carried out in the Gait Realtime Analysis Interactive Lab (GRAIL), a fully instrumented gait laboratory with virtual reality and enables assessment close to the conditions of daily life. RESULTS: In both cases the gait analysis confirmed the advantages associated with an EEP for the transmission of force to the prosthesis and the accompanying improvement in gait symmetry.


Assuntos
Membros Artificiais , Amputação/reabilitação , Cotos de Amputação/cirurgia , Humanos , Desenho de Prótese , Implantação de Prótese/métodos , Resultado do Tratamento
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