Spine
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Randomized Controlled Trial Comparative Study
Diagnostic accuracy of the clinical examination in identifying the level of herniation in patients with sciatica.
Cross sectional ⋯ The current study did not find evidence to support the accuracy of individual tests from the neurological examination in identifying the level of disc herniation demonstrated on MRI. A neurologist's overall impression was moderately accurate in identifying the level of disc herniation.
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Cadaveric study. ⋯ On the basis of our results, there is no zone of absolute safety when using the direct lateral transpsoas approach. The potential for nerve injury exists when using this approach, and consequently, we recommend either direct visualization of the nerve roots intraoperatively and/or the use of neuromonitoring. In our opinion, a higher quality, larger clinical study that examines the outcomes and surgical complications of the direct lateral transpsoas approach is warranted.
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Retrospective analysis using positional MRI. ⋯ Changes in sagittal alignment may lead to kinematic changes in the lumbar spine. This may subsequently influence load bearing and the distribution of disc degeneration at each level. Sagittal alignment, disc degeneration, and segmental mobility likely have a reciprocal influence on one another.
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Radiographic analysis using normal patients. ⋯ Our results show the impact of the O-C2 angle on the oropharyngeal space. This knowledge will be useful for the diagnosis and treatment of the upper cervical lesion combined with the upper airway stenosis, and for the determination of the optimal fixation angle in occipitocervical fusion.
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Basic animal research. ⋯ Limaprost alfadex prevented decline of forced locomotion capability in rats with chronic compression of the cervical cord.