Spine
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Cross-cultural adaptation and psychometric testing. ⋯ The reliability and construct validity of the Portuguese version of the QBPDS are acceptable to assess functional status of Portuguese-speaking patients with CLBP. .
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A finite element analysis was used. ⋯ Using the Ti2448 screw system is suggested for augmenting single-level PLIF because it induces less disc intradiscal pressure at adjacent levels and the stress-shielding effect at implant-bone surface with stabilization performance compared with the Ti-6Al-4V screw system.
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Comparative Study
Modified Marmot operation versus spinous process transverse cutting laminectomy for lumbar spinal stenosis.
Retrospective comparative cohort study. ⋯ The MM operation was less invasive and produced superior clinical outcomes compared with laminectomy involving exposure of the PVM.
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A prospective molecular mechanism of macrophages infiltration in experimental disc herniation. ⋯ N/A.
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Randomized Controlled Trial Comparative Study
Effect of facet joint injection versus systemic steroids in low back pain: a randomized controlled trial.
Randomized clinical trial. ⋯ Both treatments were effective, with a slight superiority of the intra-articular injection of steroids over intramuscular injection.