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BACKGROUND This is a systematic review of studies on the prevalence of osteoarthritis in the tibiofemoral joint more than 10 years after an anterior cruciate ligament injury, the radiologic classification methods used, and risk factors for development of knee osteoarthritis. METHODS A systematic search was performed in PubMed, EMBASE, and AMED. Inclusion(More)
BACKGROUND The need for cost effectiveness analyses in randomized controlled trials that compare treatment options is increasing. The selection of the optimal utility measure is important, and a central question is whether the two most commonly used indexes - the EuroQuol 5D (EQ5D) and the Short Form 6D (SF6D) - can be used interchangeably. The aim of the(More)
OBJECTIVE To compare measures of disability, psychological factors, pain and physical performance in healthy controls, and patients with sub-acute and chronic low back pain. To evaluate the concept of the deconditioning syndrome and to explore factors that may contribute to chronicity. DESIGN Case-control study. SUBJECTS Three age- and gender-matched(More)
STUDY DESIGN A reliability study was performed. OBJECTIVES To evaluate the test-retest reliability of self-reported functional status and pain in chronic low back pain patients by postal questionnaires. SUMMARY OF BACKGROUND DATA Evaluation tools focusing on the patients' self-reported physical function are recommended in studies on low back pain.(More)
OBJECTIVE To investigate whether personal and work-related factors, physical performance and back-specific questionnaires predict return to work. A prospective study identifying prognostic factors for return to work. SUBJECTS Ninety-three patients sick-listed for 8-12 weeks for non-specific sub-acute low back pain included in a randomized controlled(More)
STUDY DESIGN Prospective randomized controlled multicenter study. OBJECTIVE To compare the effect of X-Stop with minimally invasive decompression (MID) in patients with neurogenic intermittent claudication due to lumbar spinal stenosis. SUMMARY OF BACKGROUND DATA Lumbar spinal stenosis is the most common indication for operative treatment in elderly.(More)
Specific data on different musculoskeletal (MSK) disorders from the Global Burden of Disease (GBD) study will be presented in this 1–3 and future issues of the journal. 4–9 MSK disorders are the second most common cause of disability worldwide , measured by years lived with disability (YLDs), with low back pain being the most frequent condition. 10(More)
BACKGROUND Seven previous systematic reviews (SRs) have evaluated back schools, and one has evaluated brief education, with the latest SR including studies until November 2004. The effectiveness of fear-avoidance training has not been assessed. PURPOSE To assess the effectiveness of back schools, brief education, and fear-avoidance training for chronic(More)
OBJECTIVE To evaluate the short-term effect of physical exercise and a cognitive intervention in low back pain. DESIGN Randomized controlled trial. SUBJECTS Ninety-three patients sick-listed for 8-12 weeks for sub-acute low back pain were randomized to an exercise regime (n = 30), a cognitive intervention (n = 34) or a control group (n = 29). METHODS(More)
PURPOSE The Core Outcome Measures Index (COMI) is a short multidimensional scale covering all domains recommended to be included as outcome measures for patients with low back pain (LBP). The purpose of the present study was to translate and cross-culturally adapt the COMI into Norwegian and to test clinimetric properties of the Norwegian COMI version in(More)