The MSQ-BR has adequate internal consistency and test-retest reliability. The MSQ-BR insomnia has adequate internal consistency for use as a separate application. However, the MSQ-BR hypersomnia demonstrated only moderate internal consistency for use as a separate application. Our intention was not to introduce modifications to the questionnaire, but to evaluate the reliability of total MSQ-BR and its subscales. Others studies are needed to assess the consistency of MSQ compared to other instruments.

Some studies have demonstrated that physiotherapists have a high prevalence of low back pain (LBP). The association between physiotherapy students, who are potentially exposed to the same LBP occupational risks as graduates, and LBP has never been demonstrated. The objective of the study is to evaluate the association between undergraduate physiotherapy study and LBP. The study design includes a cross-sectional study. A questionnairebased study was carried out with physiotherapy and medical students. LBP was measured as lifetime, 1-year and point prevalence. Bivariate and multivariate analyses were performed to find the factors associated with LBP. Bivariate analyses were also performed to assess differences between LBP characteristics in the two courses. 77.9% of the students had LBP at some point in their lives, 66.8% in the last year and 14.4% of them reported they were suffering from LBP at the moment of answering the questionnaire. Physiotherapy students reported a higher prevalence of LBP when compared with the medical students in all measures. In the logistic regression model, physiotherapy students (A-OR 2.51; 95% CI 1.35-4.67; p = 0.003), and being exposed to the undergraduate study for more than four semesters (A-OR 2.55; 95% CI 1.43-4.55; p = 0.001) were independently associated with LBP. There were no differences between the courses concerning pain intensity and disability. As it was a crosssectional study, we were not able to observe accurately if there is an increasing incidence of LBP during the course. Also, we did not intend to identify which activities in the course were associated with the development of LBP. This study clearly demonstrated an association between undergraduate physiotherapy study and LBP. The length of course exposure is also associated with LBP.

Objective: To determine the prevalence, characteristics and impact of headache among university students. Method: The criteria established by the International Headache Society were used to define the primary headache subtypes and the Migraine Disability Assessment Questionnaire (MIDAS), to assess the disability. The students were then grouped into six categories: [1] .5% had at least one headache episode in the last three months. Regarding disability, there was a significant difference between the headache types (p<0.0001). In the post-hoc analysis, migraine was the headache type with most reported disability. Conclusion: Headache is a highly prevalent condition among the students at the University of Caxias do Sul. This disease may have a major impact on the students' lives and in some cases, ultimately lead to educational failure. Key words: disability, headache, prevalence, young population.

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Alguns dos indivíduos submetidos à cirurgia de coluna vertebral terão desfechos pós-operatório desfavoráveis, independente do êxito técnico. Esse insucesso gera aumento da morbidade e dos custos socioeconômicos. Sabe-se que fatores psicossociais interferem na impressão do sujeito. Com o propósito de identificá-los, tem-se estimulado a busca de preditores prognósticos por meio de instrumentos de triagem. Porém, a eleição do mais adequado pode ser difícil, já que existe um grande número de questionários. Entre os aspectos abordados por eles, podemos citar: incapacidade funcional, qualidade de vida, satisfação, dor, depressão, distúrbios do humor e atividade funcional. O trabalho objetiva revisar as particularidades, indicações e limitações dos instrumentos de avaliação do paciente com doença na coluna vertebral.

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OBJECTIVEThe aim of this study was to evaluate the anatomical and surgical risk factors for screw-related facet joint violation at the superior level in lumbar fusion.METHODSThe authors conducted a retrospective review of a consecutive series of posterior lumbar instrumented fusions performed by a single surgeon. Inclusion criteria were primary lumbar fusion of 1 or 2 levels for degenerative disorders. The following variables were analyzed as possible risk factors: surgical technique (percutaneous vs open screw placement), depth of surgical field, degree of anterior slippage of the superior level, pedicle and facet angle, and facet degeneration of the superior level. Postoperative CT scans were evaluated by 2 independent reviewers. Axial, sagittal, and coronal views were reviewed. Pedicle screws were graded as intra-articular if they clearly interposed between the superior and inferior facet joints of the superior level. Multivariate logistic regression analyses were conducted to assess the factors associated with this complication.RESULTSOne hundred thirty-one patients were included. Interobserver reliability for facet joint violation assessment was high (κ = 0.789). The incidence of superior facet joint violation was 12.59% per top-level screw (33 of 262 proximal screws). The rate of facet violation was 28.0% in the percutaneous technique group (14 of 50 patients) and 12.3% in the open surgery group (10 of 81 patients) (OR 2.26, 95% CI 1.09–4.21; p = 0.024). In multivariate logistic regression analysis, independent predictors of facet violation were percutaneous screw placement (adjusted OR 3.31, 95% CI 1.42–7.73; p = 0.006), right-side pedicle screw (adjusted OR 3.14, 95% CI 1.29–7.63; p = 0.011), and facet angle > 45° (adjusted OR 10.95, 95% CI 4.64–25.84; p < 0.0001).CONCLUSIONSThe incidence of facet joint violation was higher in percutaneous minimally invasive than in open technique for posterior lumbar spine surgery. Also, coronal orientation of the facet joint is a significant risk factor independent of the surgical technique.

-Objective: To evaluate the knowledge about stroke in Caxias do Sul. Method: A closed-ended, self-administered questionnaire was used to assess the knowledge about stroke among residents of Caxias do Sul. In order to verify variables associated to lack of knowledge we defined three main end points: (1) the inability to recognize that stroke is a disease that affects the brain; (2) insufficient knowledge of risk factors; (3) insufficient knowledge of signs and symptoms of acute stroke. Results: A total of 952 subjects answered the questionnaire. Lower income and lower educational level were independent factors associated to inability to recognize that stroke affects the brain. Lower income and being under 50 years old were independent risk factors to lack of knowledge concerning stroke risk factors. Lower educational level was the unique risk factor for insufficient knowledge about stroke warning signs. Conclusion: There is a lack of knowledge about stroke in Caxias do Sul. People with lower socioeconomic status and lower education level should be the targets of educational campaigns.KEY WORDS: stroke, knowledge, risk factors, warning signs, general population. Avaliação de fatores de risco de doença cerebrovascular no sul do BrasilResumo -Objetivo: Avaliar o conhecimento sobre doença cerebrovascular em Caxias do Sul. Método: Um questionário auto-administrado, com questões objetivas, foi utilizado para avaliar o conhecimento sobre doença cerebrovascuar em residentes de Caxias do Sul. A fim de verificar as variáveis associadas à falta de conhecimento, definiram-se três principais desfechos: (1) incapacidade de reconhechecer que o derrame é uma doença que afeta o cérebro; (2) conchecimento insuficiente sobre fatores de risco; (3) conhecimeto insuficiente sobre sinais e sintomas de acidente vascular encefálico. Resultados: Um total de 952 sujeitos responderam o questionário. Menor renda e menor nível socioeconômico foram fatores independentes associados à incapacidade de reconhecer que derrame afeta o cérebro. Menor renda e ter menos que 50 anos de idade foram fatores independentes associados à conchecimento insuficiente sobre fatores de risco para doença cerebrovasculas. Menor nível educacional foi o único fator de risco independente associado à conhecimento insuficiente sobre sinais de alerta do acidente vascular encefálico. Conclusão: Há uma lacuna de conhecimento sobre doença cerebrovascular em Caxias do Sul. Pessoas com menor nível socioeconômico e menor nível educaional deveriam ser o alvo para campanhas educacionais. PALAVRAS-CHAVE: acidente vascular encefálico, conhecimento, fatores de risco, sinais de alerta, população geral. Stroke is a major public health problem and the leading cause of mortality in Brazil 1,2 . Nevertheless, it is still a neglected disease in this country, where a great number of patients does not get the specific treatment because of the delay in the diagnosis and the absence of the recombinant tissue plasminogen activator (rt-PA) in the public hospitals network 2-4 . The awar...