graduação radiográfica da cimentação de hastes femorais na artroplastia do quadril radiographic grading of femoral stem cementation in hip arthroplasty

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ID: 128460
2013
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Abstract
OBJETIVO: Determinar a concordância intra e interobservador do sistema proposto por Barrack para graduação da qualidade de cimentação do componente femoral na artroplastia do quadril. MÉTODOS: As radiografias pós-operatórias imediatas em anteroposterior e perfil de 55 artroplastias totais primárias do quadril foram analisadas por dois observadores habituados ao uso deste sistema de graduação. As leituras das radiografias foram feitas em duas ocasiões distintas por cada examinador e de maneira independente. Na análise estatística foi calculado o coeficiente Kappa, que determina o grau de concordância entre testes com variáveis categóricas. RESULTADOS: O coeficiente Kappa intraobservador variou entre 0,43 e 0,68, demonstrando força de concordância moderada a substancial; o coeficiente Kappa interobservador variou de 0,19 a 0,44, demonstrando força de concordância desprezível a moderada. CONCLUSÃO: As concordâncias intra e especialmente interobservador são limitadas neste sistema de graduação, mesmo quando utilizado por indivíduos treinados. Nível de Evidência III, Estudo de pacientes não consecutivos; sem padrão de referência "ouro" aplicado uniformemente.
OBJECTIVE: To determine intra and interobserver agreement of the grading system for femoral cementation in hip arthroplasty proposed by Barrack. METHODS: Immediate anteroposterior and lateral postoperative radiographs of 55 primary total hip arthroplasties were assessed by two observers familiar with the use of this grading system. The assessments were performed on two separate occasions by each observer and independently. The statistical analysis measured the Kappa coefficient, which determines the degree of agreement between tests with categorical variables. RESULTS: Intraobserver Kappa coefficient varied from 0.43 to 0.68, demonstrating moderate to substantial strength of agreement; interobserver Kappa coefficient varied from 0.19 to 0.44, demonstrating slight to moderate strength of agreement. CONCLUSION: Intra and particularly interobserver agreement are limited in this grading system, even when used by trained individuals. Level of Evidence III, Study of nonconsecutive patients; without consistently applied reference "gold" standard.
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Authors ;Flávio Luís Garcia;Arthur Tomotaka Sugo;Celso Hermínio Ferraz Picado
Journal current opinion in food science
Year 2013
DOI
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http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-78522013000100006
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