Spine
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Population-based, prospective cohort. ⋯ Most new and recurrent LBP episodes are mild. Less than one third of cases resolve annually, and more than 20% recur within 6 months. LBP episodes are more recurrent and persistent in older adults.
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Randomized Controlled Trial Multicenter Study Comparative Study
The treatment of disc herniation-induced sciatica with infliximab: results of a randomized, controlled, 3-month follow-up study.
A randomized controlled trial. ⋯ The results of this randomized trial do not support the use of infliximab for lumbar radicular pain in patients with disc herniation-induced sciatica.
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Comparative Study
Biomechanical assessment of the pediatric cervical spine under bending and tensile loading.
Cadaveric head-neck complexes from pediatric donors aged 2-12 years were subjected to a test battery consisting of nondestructive flexion-extension bending, nondestructive tensile step-and-hold tests, and tensile distraction loading to failure. ⋯ The current study provides valuable new information on the response and tolerance of the pediatric cervical spine to quasi-static flexion-extension and tensile distraction loading.
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Computer modeling and parametric analysis were used to determine the effect of reflex contraction of the neck muscles in the unaware occupant in whiplash. ⋯ Because reflex contraction did not substantially alter spinal kinematics, muscle contraction likely does not initiate in sufficient time to mitigate whiplash injuries that may occur during the retraction phase.
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Randomized Controlled Trial Comparative Study
Predictors and modifiers of treatment effect influencing sick leave in subacute low back pain patients.
Modifying effects in multivariate analyses of a randomized controlled trial. ⋯ The spine clinic intervention seems to have a main effect on work absenteeism via interacting with the concerns of being unable to work.