Spine
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A population-based longitudinal study conducted in northwest England for a 12-month period involving adults aged 18-75 years. ⋯ Occupational activities, particularly in women, such as working with heavy weights or lengthy periods of standing or walking, were associated with the occurrence of low back pain. Short-term influences may be more important in the occurrence of new episodes rather than cumulative lifetime exposure, and emphasize that such morbidity may be avoidable.
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Comparative Study
Growth changes of solidly fused kyphotic bloc after surgery for tuberculosis. Comparison of four procedures.
A study to analyze the changes of the spinal deformity during the growth period, with regard to different operations for spinal tuberculosis in children. ⋯ Radical anterior surgery for spinal tuberculosis destroys the anterior growth and limits the capacity for spinal remodeling. Therefore, it should be avoided, if it is not absolutely necessary, for the healing of the infection or the primary correction of the tuberculous deformity.
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To elucidate the pathomechanisms of radicular pain secondary to lumbar disc herniation. ⋯ It appears that phospholipase A2 and nitric oxide play important but different roles in pathomechanisms of radicular pain in lumbar disc herniation.
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A prospective, population-based cohort study of working adults. ⋯ People dissatisfied with work are more likely to report low back pain for which they do not consult a physician, whereas lower social status and perceived inadequacy of income are independent risks for working people to seek consultation because of low back pain.
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Comparative Study
A prospective study of centralization of lumbar and referred pain. A predictor of symptomatic discs and anular competence.
The presence or absence of rapidly centralizing, peripheralizing, or abolishing low back and radiating pain, as identified during a McKenzie mechanical lumbar assessment of patients with chronic lumbar pain, was compared prospectively with discographic pain provocation and anular competency. ⋯ The McKenzie assessment process reliably differentiated discogenic from nondiscogenic pain (P < 0.001) as well as competent from an incompetent anulus (P < 0.042) in symptomatic discs and was superior to magnetic resonance imaging in distinguishing painful from nonpainful discs.