Objetivo Comparar o efeito da infiltração intraarticular do plasma rico em plaqueta com a do ácido hialurônico no tratamento de pacientes com osteoartrose primária de joelho. Métodos Realizou-se um ensaio clínico randomizado com 29 pacientes, sendo um grupo submetido à infiltração com ácido hialurônico (controle) e o outro com plasma rico em plaquetas. Os desfechos clínicos avaliados foram a escala visual analógica da dor; o questionário Western Ontario and McMaster Universities Arthritis Index (WOMAC), antes e depois da intervenção; e os efeitos adversos após as aplicações. Utilizou-se os testes do qui-quadrado e exato de Fisher para as variáveis categóricas, e o teste t de Student, análise de variância, e Wilcoxon para as variáveis contínuas, através do software de estatística R. Resultados A análise independente de cada grupo revelou uma diferença estatística nos meses iniciais, com melhora dos escores de dor e função; porém, com piora no 6° mês após o procedimento. Não houve diferença dos desfechos avaliados entre os grupos que foram submetidos à infiltração com ácido hialurônico ou com plasma rico em plaquetas. Não houve efeito adverso grave ou reação alérgica durante todo o seguimento. Conclusão A infiltração intraarticular com ácido hialurônico ou plasma rico em plaquetas nos joelhos dos pacientes com gonartrose primária apresentou melhora temporária dos sintomas de função e dor. Não houve diferença entre as duas intervenções. Não houve suporte financeiro de fontes públicas, comerciais, ou sem fins lucrativos. ^* Trabalho desenvolvido no Departamento de Ortopedia e Traumatologia, Instituto Prevent Senior, São Paulo, Brasil. Received: 05 June 2020 Accepted: 17 September 2020 Article published online: 19 April 2021 © 2021. Sociedade Brasileira de Ortopedia e Traumatologia. This is an open access article published by Thieme under the terms of the Creative Commons Attribution-NonDerivative-NonCommercial License, permitting copying and reproduction so long as the original work is given appropriate credit. Contents may not be used for commecial purposes, or adapted, remixed, transformed or built upon. (https://creativecommons.org/licenses/by-nc-nd/4.0/) Thieme Revinter Publicações Ltda. Rua do Matoso 170, Rio de Janeiro, RJ, CEP 20270-135, Brazil

Background: The aim of this study is to evaluate the outcome of patients with cavitary chronic osteomyelitis undergoing adjuvant treatment with bioactive glass (BAG) S53P4 and identify the independent risk factors (RFs) for recurrence in 6- and 12-month patient follow-up. Methods: A retrospective, multicentre observational study conducted in tertiary specialised hospitals among patients undergoing the surgical treatment of chronic cavitary osteomyelitis using BAG-S53P4 in a granule and/or putty formulation to assess the clinical outcome and RFs for failure in 6- and 12-month patient follow-up. Results: Of the 92 and 78 patients with 6-month and 12-month follow-ups, infection was eradicated in 85.9% and 87.2%, respectively. In the 6-month follow-up, BAG-S53P4 in the granule formulation presented a greater risk of recurrence compared to the bioactive glass putty formulation or combined granules and putty (prevalence ratio (PR) = 3.04; confidence interval 95% [CI95%]: 1.13–10.52) and neoplasia (PR = 5.26; CI95%: 1.17–15.52). In the 12-month follow-up cohort of 78 patients, smoking (PR = 4.0; 95% CI: 1.03–15.52) and nonfermenting GNB infection (PR = 3.87; CI95%: 1.09–13.73) presented a greater risk of recurrence. Conclusions: BAG-S53P4 is a viable option for bone-void filling and the treatment of chronic cavitary osteomyelitis. Formulations of BAG with putty or in combination with granules showed better results.

Introduction: Proximal femoral fractures have a high mortality rate among older adults, especially those aged > 80 years. Objective: To analyze predictive factors for hospital or late mortality of patients > 90 years old who showed proximal femoral fracture and subjected to surgery. Methods: The study included data from 230 patients aged > 90 years diagnosed with proximal femoral fracture and who underwent surgery between January and December 2017. The statistical evaluation was performed by multivariate analysis by a logistic regression. The associations were estimated by the odds ratio (OD) and confidence interval (95%). Statistical significance was determined with p < 0.05. Results: Late death occurred in 51.3% (118 patients) of the sample and hospital death in 3.5% (8 patients). Most patients were women (83.5%) and the most common fracture was transtrochanteric (57.0%). There was association between late death and the surgery duration (p < 0.05), and between hospital death and the presence of heart diseases (p < 0.05) or endocrinopathies (p < 0.05). Conclusion: Most patients aged > 90 years with proximal femoral fracture subjected to surgery died in less than one year. Late death was associated with the surgery duration and hospital death was associated with the presence of previous endocrinopathies or heart diseases, and the female gender was a protective factor from this outcome. Level of Evidence III, Retrospective Case-Control Study.

Resumo: Objetivo Avaliar os fatores de risco para infecção articular periprotética após procedimento cirúrgico eletivo de artroplastia primária total de joelho ou quadril. Métodos Incluem-se no estudo 706 prontuários de pacientes que foram submetidos a artroplastia total primária eletiva de quadril ou joelho entre os meses de janeiro e dezembro de 2018. Utilizou-se a análise multivariada dos fatores preditores de infecção por meio de um modelo de regressão logística. Toda a análise estatística foi realizada no software R. Resultados A prevalência de infecção de toda a amostra foi de 2,0% (14 casos). A amostra contou com a maioria do gênero feminino (79,6%), com o lado direito afetado (50,6%) e predomínio da artroplastia total de joelho (61,3%). Os fatores de risco significativos (p < 0,05) para a infecção foram: tempo cirúrgico maior do que 120 minutos (p = 0,009) e diagnóstico prévio de diabetes (p = 0,025). Conclusão Artroplastias totais primárias eletivas de joelho ou quadril possuem maior risco de infecção quando ocorre um tempo prolongado do procedimento cirúrgico (acima de 120 minutos) e quando o paciente possui diagnóstico prévio de diabetes mellitus. Nível de Evidência IIIB, estudo retrospectivo caso-controle.

Osteoarthritis and Parvovirus B19 infection present silent and gradual evolution, since the former is a degenerative process while the latter is often asymptomatic and may persist in the individual’s body during their life. This study aims to analyze clinical studies that establish a correlation between degenerative osteoarthritis and Parvovirus B19 infection. Of the 62 studies found, 25 were chosen for reading in full. Analyzing only the studies that establish the correlation between the pathologies, seven confirm this relationship between Parvovirus B19 and Osteoarthritis, while one reports no relationship. No objective correlation could be found between the other articles studied. Our findings suggest that there is a close relationship between Parvovirus B19 and Osteoarthritis, with a higher prevalence of acquired causes, women and older adults, but it can manifest during life. However, it is essential to carry out new studies involving family history of patients with Osteoarthritis with positivity of Parvovirus B19, cohort studies between childhood and adult-old adult, so that it can elucidate this duality of congenital-acquired cause and, finally, raise treatment alternatives. Level of Evidence II, Systematic Review of Level II Studies.