Articles: low-back-pain.
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Twelve-month cohort study. ⋯ In association with fear of work, 2 factors from the adapted stress process model are significantly useful for predicting LBP related long-term disability outcomes and could be targeted by preventive interventions.
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Prospective cohort study. ⋯ Discectomy improved low back pain in patients suffering from lumbar disc herniation. Patients with or without Modic type 1 change showed a similar improvement of low back pain score. Low back pain in patients with disc herniation appears to mainly originate from disc or nerve root compression, and decompression surgery without fusion is an option for these patients, even those with Modic type 1 changes.
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Mechanisms-based classifications of pain have been advocated for their potential to aid understanding of clinical presentations of pain and improve clinical outcomes. However, the reliability of mechanisms-based classifications of pain and the clinical criteria upon which such classifications are based are not known. The purpose of this investigation was to assess the inter- and intra-examiner reliability of clinical judgments associated with: (i) mechanisms-based classifications of pain; and (ii) the identification and interpretation of individual symptoms and signs from a Delphi-derived expert consensus list of clinical criteria associated with mechanisms-based classifications of pain in patients with low back (±leg) pain disorders. ⋯ Sixty-eight and 95% of items on the clinical criteria checklist demonstrated clinically acceptable (kappa ⩾ 0.61 or % agreement ⩾ 80%) inter- and intra-examiner reliability, respectively. The results of this study provide preliminary evidence supporting the reliability of clinical judgments associated with mechanisms-based classifications of pain in patients with low back (±leg) pain disorders. The reliability of mechanisms-based classifications of pain should be investigated using larger samples of patients and multiple independent examiners.
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To compare anxiety levels, fear-avoidance beliefs, and disability levels over 1 year for patients with acute (< or =3 months) and chronic (>3 months) low back pain (LBP). ⋯ The group with chronic LBP exhibited a higher level of trait anxiety at baseline than those with acute LBP and, unlike the acute LBP group, did not have improved fear-avoidance beliefs over 1 year. The relationship between anxiety and chronic LBP is novel. Because anxiety is potentially modifiable, future studies that evaluate the relationship between LBP and anxiety are warranted.