References of "Norberg, M"
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See detailDéveloppement d’un questionnaire permettant d’identifier la présence de croyances délétères chez les patients lombalgiques
Demoulin, Christophe ULiege; SALAMUN, Irène ULiege; Bertrand, J. et al

in Revue du Rhumatisme (2018, November), 85(Supplément 1), 165-166

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See detailClinical Classification Criteria for Neurogenic Claudication caused by Lumbar Spinal Stenosis. The N-CLASS criteria
Genevay, Stéphane; Courvoisier, DS; Konstantinou, K et al

in Spine Journal (2018), 18(6), 941-947

BACKGROUND CONTEXT: Since imaging findings of lumbar spinal stenosis (LSS) may not be associated with symptoms, clinical classification criteria based on patient symptoms and physical examination findings ... [more ▼]

BACKGROUND CONTEXT: Since imaging findings of lumbar spinal stenosis (LSS) may not be associated with symptoms, clinical classification criteria based on patient symptoms and physical examination findings are needed. PURPOSE: To develop clinical classification criteria that identify patients with neurogenic claudication (NC) caused by LSS. STUDY DESIGN: Two stage process. Phase 1: Delphi process; Phase 2: cross-sectional study. PATIENT SAMPLE: Outpatients recruited from spine clinics in 5 countries. OUTCOME MEASURE: Items from history and physical examination. METHODS: Phase 1: A list of potential predictors of NC caused by LSS was based on the available literature and evaluated through a Delphi process involving seventeen spine specialists (surgeons and non-surgeons) from 8 countries. Phase 2: Nineteen different clinical spine specialists from 5 countries identified patients they classified as having: 1) NC caused by LSS 2) Radicular pain caused by lumbar disc herniation (LDH), or 3) non-specific low back pain (NSLBP) with radiating leg pain. Patients completed survey items and specialists documented examination signs. Coefficients from General Estimating Equation models were used to select predictors, generate a clinical classification score and obtain a receiver operating characteristic (ROC) curve. Conduction of the Delphi process, data management and statistical analysis were partially supported by an unrestricted grant of less than 15000 US dollars from Merck Sharp and Dohme. No fees were allocated to participating spine specialists. RESULTS: Phase 1 generated a final list of 46 items related to LSS. In phase 2, 209 patients with leg pain caused by LSS (n=63), LDH (n=89) or NSLBP (n=57) were included. Criteria which independently predicted NC (p<0.05) were: age over 60; positive 30 second extension test; negative straight leg test; pain in both legs; leg pain relieved by sitting, and leg pain decreased by leaning forward or flexing the spine. A classification score using a weighted set of these criteria was developed. The proposed N-CLASS score ranged from 0 to 19, had an area under the curve of 0.92, and the cutoff (>10/19) to obtain a specificity of >90.0% resulted in a sensitivity of 82.0%. CONCLUSION: Clinical criteria independently associated with neurogenic claudication due to LSS were identified. Use of these symptom and physical variables as a classification score for clinical research could improve homogeneity among enrolled patients. [less ▲]

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See detailDéveloppement et validation d'un questionnaire identifiant différentes stratégies comportementales chez les patients lombalgiques chroniques
Bailly, F.; Foltz, V.; Rozenberg, S. et al

in Revue du Rhumatisme (2018), 85(4), 381-387

[No abstract available]

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See detailHow much does the Dallas Pain Questionnaire score have to improve to indicate that patients with chronic low back pain feel better or well?
Marty, M; Courvoisier, D; Foltz, V et al

in European Spine Journal (2016), 25

Purpose: The Dallas Pain Questionnaire (DPQ) assesses the impact of low back pain (LBP) on four components (0–100) of daily life. We estimated the minimal clinically important improvement (MCII) and the ... [more ▼]

Purpose: The Dallas Pain Questionnaire (DPQ) assesses the impact of low back pain (LBP) on four components (0–100) of daily life. We estimated the minimal clinically important improvement (MCII) and the patient acceptable symptom state (PASS) values of DPQ in LBP patients. Methods: 142 patients with LBP lasting for at least 4 weeks completed a battery of questionnaires at baseline and 6 months later. Questions for MCII addressed patientreported response to treatment at 6 months on a five-point Likert scale, while a yes/no question concerning satisfaction with present state was used to determine PASS. MCII wascomputed as the difference in mean DPQ scores between patients reporting treatment as effective vs. patients reporting treatment as not effective, and PASS was computed as the third quartile of the DPQ score among patients who reported being satisfied with their present state. Results: MCII values were 22, 23, 2 and 10 for daily activities, work and leisure, social interest, and anxiety/depression, respectively. PASS values were 29, 23, 20 and 21 for the four components, respectively. The PASS total score threshold of 24 correctly classified 84.1 % of the patients who reported being unsatisfied with their present state, and 74.7 % of patients reported being satisfied. Conclusions: These values give information of paramount importance for clinicians in interpreting change in DPQ values over time. Authors should be encouraged to report the percentage of patients who reach MCII and PASS values in randomized clinical trials and cohort studies to help clinicians to interpret clinical results. [less ▲]

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See detailCore Outcome Measure Index for low back patients: do we miss anxiety and depression?
Cedraschi, C; Marty, M; Courvoisier, DS et al

in European Spine Journal (2016), 25

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See detailPropriétés métrologiques du Dallas Pain Questionnaire
Marty, M; Genevay, S; Courvoisier, D et al

in Revue du Rhumatisme (2014, December), 81S

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