Articles: back-pain.
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Multicenter Study Observational Study
Anterior Trunk Mobility Does Not Predict Disability in Elderly Women with Acute Low Back Pain: Brazilian Back Complaints in the Elders (BACE-Brazil) Study Results.
Cross-sectional, ancillary study of an international multicenter epidemiological study. ⋯ N/A.
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Multicenter Study Comparative Study
Do occupational Risks for Low Back Pain Differ from Risks for Specific Lumbar Disc Diseases? Results of the German Lumbar Spine Study (EPILIFT).
A multicenter, population based, case-control study. ⋯ 4.
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Multicenter Study
The Association Between Self-reported Low Back Pain and Radiographic Lumbar Disc Degeneration of the Cohort Hip and Cohort Knee (CHECK) Study.
Cross-sectional study, nested in a prospective cohort (Cohort Hip and Knee, CHECK). ⋯ 3.
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Arch Phys Med Rehabil · Aug 2017
Randomized Controlled Trial Multicenter StudyLong-Term Effects of Repeated Injections of Local Anesthetic With or Without Corticosteroid for Lumbar Spinal Stenosis: A Randomized Trial.
To determine the overall long-term effectiveness of treatment with epidural corticosteroid injections for lumbar central spinal stenosis and the effect of repeat injections, including crossover injections, on outcomes through 12 months. ⋯ For lumbar spinal stenosis symptoms, epidural injections of corticosteroid plus lidocaine offered no benefits from 6 weeks to 12 months beyond that of injections of lidocaine alone in terms of self-reported pain and function or reduction in use of opioids and spine surgery. In patients with improved pain and function 6 weeks after initial injection, these outcomes were maintained at 12 months. However, the trajectories of pain and function outcomes after 3 weeks did not differ by injectate type. Repeated injections of either type offered no additional long-term benefit if injections in the first 6 weeks did not improve pain.
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Bmc Musculoskel Dis · Jul 2017
Multicenter Study Observational StudyHow can latent trajectories of back pain be translated into defined subgroups?
Similar types of trajectory patterns have been identified by Latent Class Analyses (LCA) across multiple low back pain (LBP) cohorts, but these patterns are impractical to apply to new cohorts or individual patients. It would be useful to be able to identify trajectory subgroups from descriptive definitions, as a way to apply the same definitions of mutually exclusive subgroups across populations. In this study, we investigated if the course trajectories of two LBP cohorts fitted with previously suggested trajectory subgroup definitions, how distinctly different these subgroups were, and if the subgroup definitions matched with LCA-derived patterns. ⋯ Previously suggested definitions of LBP trajectory subgroups could be readily applied to patients' observed data resulting in subgroups that matched well with LCA-derived trajectory patterns. We suggest that the number of trajectory subgroups can be reduced by merging some subgroups with minor LBP. Stable levels of LBP were almost not observed and we suggest that minor fluctuations in pain intensity might be conceptualised as 'ongoing LBP'. Lastly, we found clear support for distinguishing between fluctuating and episodic LBP.