European spine journal : official publication of the European Spine Society, the European Spinal Deformity Society, and the European Section of the Cervical Spine Research Society
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To determine (a) clinical classes of injured workers with chronic low back pain (CLBP), (b) predictors of class membership and (c) associations of classes with baseline work status. ⋯ In a cohort of injured workers with CLBP, 3 clinical classes were identified with distinct psychological and physical profiles. These profiles are useful in aiding clinicians to identify patients of high clinical severity who may be potentially at risk for problematic return to work.
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The purpose of this study was to investigate whether transitional vertebrae contribute to the development of sacroiliac joint dysfunction. The prevalence of transitional vertebrae in patients with lumbar pain was determined during this process, and the prevalence of sacroiliac dysfunction was compared between patients with low back pain and healthy volunteers. ⋯ Sacroiliac joint dysfunction must be considered when investigating the etiology of low back pain. Particular sensitivity must be exhibited on this subject in patients with transitional vertebrae.