Translation and cross-cultural adaptation of “Trapeziometacarpal Arthrosis Symptoms and Disability—TASD” into Brazilian Portuguese

Abstract

Background Osteoarthritis is the most common form of hand arthritis and arthritis of the carpometacarpal joint of the thumb is a potentially limiting disease. There is no homogeneity in the evaluation of outcomes for the rhizarthrosis treatment. In an attempt to standardize the evaluation of results, some subjective questionnaires, non-specific, were used to evaluate rhizarthrosis. Trapeziometacarpal Arthrosis Symptoms and Disability (TASD) was described by Becker et al.with the purpose of evaluating symptom intensity and degree of disability, as to compare results after treatment. Our objective is to translate, validate and do the cultural adaptation of the questionnaire TASD into the Brazilian Portuguese. Methods The questionnaire was translated, with reverse translation. The translations were evaluated and synthesized by a committee, arriving at TASD-BR. Thirty-one patients with a diagnosis of rhizarthrosis answered the questionnaire. We evaluated, the internal consistency, reliability, agreement and ceiling and floor effect for validation. Results The questionnaires were translated and adapted according to defined protocols. The internal consistency, through Cronbach's α coefficient for TASD-BR, was 0.927. The questionnaire's reliability, through the Intraclass Correlation Coefficient, was also shown to be quite high, with κ = 0.961 (0.954–0.967). The agreement, measured through the Standard Error Measurement, remained with standardized values below 5%. There was no ceiling and floor effect. Conclusion Through specific methodology we consider TASD-BR translated and valid for the Brazilian Portuguese.

Outcome measurement in trapeziometacarpal osteoarthritis: commentary and personal opinions

“…While I generally support the use of site- and condition-specific PROMs, the measurement properties of a new PROM should be comprehensively investigated before it can be used to assess the effectiveness of an intervention (Marks, 2020). At present, there are only very few studies investigating the TASD (Becker et al., 2016; de Souza Almeida et al., 2021) and therefore I would recommend the use of this tool with caution. The same applies for the other TMC scores, like the Nelson Score (Citron et al., 2007) and the Thumb Disability Examination (Noback et al., 2017).…”