Spine
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Case Reports
Paraplegia in pregnancy: a case of spinal vascular malformation with Klippel-Trenaunay syndrome.
A case report. ⋯ Pregnancy complicated by paraplegia is thought to be secondary to venous engorgement and to the resulting spinal cord ischemia in this case. Her neurological symptoms and signs gradually improved over the few days after cesarean delivery.
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A population-based, prospective cohort study. ⋯ Nearly 20% of the injured workers with LBP receive early MRI, a rate similar to that reported elsewhere. Early MRI may lead to greater subsequent interventions, potentially poorer outcomes, and increased health care expenditures. On the basis of the characteristics of patients with uncomplicated occupational LBP, providers may be able to provide tailored care, and providers and policy makers may better understand the utilization of imaging and adherence to clinical guidelines.
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Comparative Study Clinical Trial
Comparison of the amounts of canal encroachment between semisitting and supine position of computed tomography-myelography for vertebral fractures of the elderly involving the posterior vertebral wall.
A prospective radiographical trial. ⋯ Our study demonstrated that collapse of the nonunited posterior vertebral wall and intracanal protrusion of vertebral fragments would occur simultaneously with axial loading, causing SCE. Computed tomographic scan obtained in semisitting position seems quite useful to evaluate the amount of SCE by an unstable posterior wall.
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Comparative Study
Validity and reliability of the metric measurements in the assessment of lumbar spine motion in patients with ankylosing spondylitis.
A prospective, controlled clinical study performed in a tertiary care center. ⋯ Despite excellent intrarater reliabilities for OST, MSI, and MMST, only a weak correlation could be established between OST, MSI, and MMST and radiographical analysis. MMST was found not to reflect lumbar spine angular motions. Although MSI reflected spinal mobility better than OST, both seemed to reflect lumbar spine angular motion poorly.
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Comparative Study
Can a novel rectangular footplate provide higher resistance to subsidence than circular footplates? An ex vivo biomechanical study.
Ex vivo biomechanical evaluation using cadaveric vertebral bodies. ⋯ A rectangular footplate design is more resistant to subsidence than a circular footplate design in an ex vivo biomechanical model. The new design had higher load to failure even in the presence of a central defect. These findings suggest that rectangular footplates may provide better subsidence resistance when used to reconstruct defects after thoracolumbar corpectomy.