Spine
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Comparative Study
The relationship between magnetic resonance imaging and quantitative electromyography findings in patients with compressive cervical myelopathy.
A retrospective comparison of magnetic resonance imaging (MRI) and quantitative electromyography (EMG) findings in patients with compressive cervical myelopathy (CCM). ⋯ Quantitative analysis of mean duration of MUPs provides a reliable indicator of physiologic disorder of spinal motor neurons in CCM and may contribute to establishing the site of motor neuron compromise in cases with multilevel spinal canal stenosis.
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In vivo measurement of lumbar facet joint surface area. ⋯ The lumbar facet areas measured in vivo in this study were similar to previous cadaveric studies. The lumbar facet area was significantly greater at the inferior lumbar levels and also increased with age. This age-related increase in the facet joint surface was observed more in the low back pain subjects compared with asymptomatic subjects. The increase in the area of the facet joint surface is probably secondary to increased load-bearing in the lower lumbar segments and facet joint osteoarthritis.
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Prospective controlled clinical study on low back pain (LBP). ⋯ Improvement of sagittal deviation of apical lumbar vertebra, instrumentation of third or fourth vertebrae, male gender, and fusion success were correlated with postoperative improvement of LBP after posterior decompression and pedicle screw fixation for symptomatic degenerative lumbar spine disease.This research suggests that the methods directed at the improvement in sagittal spinal balance of the lumbar spine, careful selection of fusion levels, and improvement of fusion rate might be beneficial for decreasing LBP after surgery in degenerative lumbar spine disease.
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Retrospective case-referent study. ⋯ A positive sedimentation sign exclusively and reliably occurs in patients with LSS, suggesting its usefulness in clinical practice. Future accuracy studies will address its sensitivity and specificity. If they confirm the sign's high specificity, a positive sedimentation sign can rule in LSS, and, with a high sensitivity, a negative sedimentation sign can rule out LSS.
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A prospective study was performed. ⋯ The technique of TRSP approach is safe, effective, and offers some advantages over the classic posterior, anterior, combined anterior-posterior approach for some specific highly unstable thoracolumbar fractures.