Challenges of conducting a randomised placebo-controlled trial of spinal surgery: the SUcceSS trial of lumbar spine decompression.

Although placebo-controlled trials are considered the gold standard for evaluating the efficacy of healthcare interventions, they can be perceived to be controversial and challenging to conduct for surgical treatments. The SUcceSS trial is the first placebo-controlled trial of lumbar decompression surgery for symptomatic lumbar canal stenosis. The SUcceSS trial has experienced common issues affecting the implementation of randomised placebo-controlled surgery trials, accentuated by the COVID-19 pandemic.

Pain and Moderate to Vigorous Physical Activity in Adolescence: An International Population-Based Survey.

Objective: To evaluate whether individual types of pain (headache, stomach-ache, and backache) or multiple pains affect the odds of young people achieving the recommended 60 minutes of moderate to vigorous physical activity (MVPA) per day in a large representative sample.

Design: Multicenter cross-sectional survey.

Setting: Twenty-eight countries across Europe and North America.

An international survey of pain in adolescents.

Background: A common belief is that pain is uncommon and short lived in adolescents. However, the burden of pain in adolescents is unclear because of limitations in previous research. The aim of this study is to estimate the prevalence of headache, stomach-ache and backache in adolescents and to explore the extent to which these three forms of pain coexist based upon a representative sample of adolescents from 28 countries.

Psychometric testing confirms that the Brazilian-Portuguese adaptations, the original versions of the Fear-Avoidance Beliefs Questionnaire, and the Tampa Scale of Kinesiophobia have similar measurement properties.

Study Design: Translation, cross-cultural adaptation, and psychometric testing of 2 questionnaires.

Objective: The objectives of this study were to translate and cross-culturally adapt the Fear-Avoidance Beliefs Questionnaire (FABQ) to Brazilian-Portuguese and to test the psychometric properties of the Brazilian-Portuguese versions of the FABQ and the Tampa Scale of Kinesiophobia (TSK).

Summary Of Background Data: Self-report measures of fear-avoidance have been widely used in clinical practice and in research.