BackgroundThe validation of widely used scales facilitates the comparison across international patient samples. The objective of this study was to translate, culturally adapt and validate the Simple Shoulder Test into Brazilian Portuguese. Also we test the stability of factor analysis across different cultures.ObjectiveThe objective of this study was to translate, culturally adapt and validate the Simple Shoulder Test into Brazilian Portuguese. Also we test the stability of factor analysis across different cultures.MethodsThe Simple Shoulder Test was translated from English into Brazilian Portuguese, translated back into English, and evaluated for accuracy by an expert committee. It was then administered to 100 patients with shoulder conditions. Psychometric properties were analyzed including factor analysis, internal reliability, test-retest reliability at seven days, and construct validity in relation to the Short Form 36 health survey (SF-36).ResultsFactor analysis demonstrated a three factor solution. Cronbach’s alpha was 0.82. Test-retest reliability index as measured by intra-class correlation coefficient (ICC) was 0.84. Associations were observed in the hypothesized direction with all subscales of SF-36 questionnaire.ConclusionThe Simple Shoulder Test translation and cultural adaptation to Brazilian-Portuguese demonstrated adequate factor structure, internal reliability, and validity, ultimately allowing for its use in the comparison with international patient samples.

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The aim of this study was to evaluate the accuracy of simple radiography, ultrasound and magnetic resonance imaging (MRI) in diagnosing rotator cuff injuries, comparing their findings with open or arthroscopic surgery findings. Methods: Protocols of the Shoulder and Elbow Surgery Service for patients undergoing surgical treatment for rotator cuff injuries diagnosed by means of radiography, ultrasound and/or MRI between 2002 and 2007 were evaluated. Based on the data gathered, we analyzed the sensitivity, specificity, positive predictive value, negative predictive value and accuracy of these complementary examinations, compared with the findings during the surgical procedures. Results: This study included 147 patients with a mean age of 46.09 years. All the patients had undergone a radiography examination, 101 had undergone ultrasound examination and 72 had undergone MRI. We found sensitivity of 13.8%, specificity of 2.6% and accuracy of 30% with radiography; sensitivity of 57.6%, specificity of 29.6% and accuracy of 51.4% with ultrasound; and sensitivity of 86.6%, specificity of 22.2% and accuracy of 63.3% with MRI. Conclusion: Radiography was found to be a specific examination when the mirror sign was present. MRI and ultrasound were shown to be reliable methods with high accuracy for diagnosing rotator cuff injuries.

Declaramos inexistência de conflito de interesses neste artigo RESUMOObjetivo: A proposta do trabalho é avaliar a acurácia da radiografia simples, ultrassonografia e ressonância nuclear magnética no diagnóstico das lesões do manguito rotador, comparando-os com os achados em cirurgias abertas ou artroscópicas. INTRODUçãOAs lesões do manguito rotador constituem uma causa frequente de dor no ombro em pessoas de todas as idades. Essa condição representa um espectro de doenças, que varia desde uma tendinite aguda reversível até uma lesão maciça envolvendo todos os seus componentes (1) .O diagnóstico dessa doença é obtido pela história clínica e exame físico, incluindo suas manobras semio- ARTIGO ORIGINALRev Bras Ortop. 2010;45(5):418-25

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