Spine
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Randomized Controlled Trial
The effectiveness of high-intensity versus low-intensity back schools in an occupational setting: a pragmatic randomized controlled trial.
Randomized controlled trial. ⋯ The low-intensity back school was most effective in reducing work absence, functional disability, and kinesiophobia, and more workers in this group scored a higher perceived recovery during the 6-month follow-up.
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Clinico-epidemiologic study in the Chianti area (Tuscany, Italy). ⋯ Frequent back pain is highly prevalent in the older population and is often associated with conditions that are potentially reversible.
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Retrospective. ⋯ ST is a basic mechanism for correcting sagittal imbalance and is likely to occur when the level of OWO is near the apex of deformity. Patients needing more correction of lumbar lordosis than others for best correction of sagittal imbalance need ST more to join the mechanism of correction.
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Nonlinear systems analyses of trunk kinematics were performed to estimate control of dynamic stability during repetitive flexion and extension movements. ⋯ Nonlinear dynamic systems analyses were successfully applied to empirically measured data, which were used to characterize the neuromuscular control of stability during repetitive dynamic trunk movements. Movement pace and movement direction influenced the control of spinal stability. These stability assessment techniques are recommended for improved workplace design and the clinical assessment of spinal stability in patients with low back pain.
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This is a prospective cohort study examining the results and radiographic characteristics of anterior lumbar interbody fusion (ALIF) using femoral ring allografts (FRAs) and recombinant human bone morphogenetic protein-2 (rhBMP-2). This was compared to a historical control ALIF using FRAs with autologous iliac crest bone graft (ICBG). ⋯ The use of rhBMP-2 did not enhance the fusion rate in stand-alone ALIF with FRAs. In fact, the trend was toward a higher nonunion rate with rhBMP-2, although this was not significant with the numbers available. This result appears to be caused by the aggressive resorptive phase of allograft incorporation, which occurs before the osteoinduction phase.