To evaluate the intra-evaluator reproducibility and the association of the radiographic scale with the intensity of pain at rest, on palpation, and after performing functional activities. This was across-sectional study. The population was made up of people with medical diagnoses of OA at the knee (tibiofemoral) between 40 and 75 years of age. An orthopedist evaluated the X-rays who was blind; images were evaluated in physical form, and they were randomly sorted. The pain intensity was evaluated once, by an experienced physiotherapistwhile the