Tradução e adaptação transcultural do questionário de tendinopatia patelar de Oslo Sports Trauma Research Center (OSTRC-P) para língua portuguesa do Brasil

Abstract

Patellar Tendon Tendinopathy (PT) is a musculoskeletal dysfunction characterized by the gradual onset of pain in the region below the patella. PT arises due to performing repetitive sports gestures such as jumping, landing, acceleration and deceleration. The diagnosis is clinical and there are few measurement instruments in the literature to diagnose, quantify prevalence, and classify the severity and monitor PT in the Brazilian population. The aim of this study was to perform the translation and cross-cultural adaptation of the Oslo Sports Trauma Research Center Patellar Tendinopathy Questionnaire (OSTRC-P), originally published in English, into the Brazilian Portuguese version. The process of translation and cross-cultural adaptation followed the guidelines of the international guideline for cross-cultural adaptation of self-report measures, consisting of 6 phases, plus a Delphi study. The expert committee of the Delphi study was composed of 8 Brazilian physiotherapists who answered via email sociodemographic questions and a Likert scale to evaluate the clarity of the pre-final version of the OSTRC-P-Br questionnaire. Questions 2,3,7,9,10 had 100% "totally agree" responses, questions 1 and 4, had 87.5% "totally agree" responses, and questions 5,6 and 8, 50% "totally agree" responses. None of the questions had a median of less than 4.5. Among the participants in the pre-test version, the difficulty of understanding was minimal, less than 15%. Based on the results obtained in the translation and cross-cultural adaptation process, we conclude that the OSTRC-P-Br questionnaire is an understandable self-reported instrument for the Brazilian population and equivalent to the original version.