Spine
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Multicenter Study
Predictive factors for a poor surgical outcome with thoracic ossification of the ligamentum flavum by multivariate analysis: a multicenter study.
Retrospective multi-institutional study. ⋯ 3.
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Laboratory based controlled in vivo study. ⋯ These data demonstrate that the net effect on matrix in an animal model in vivo, as measured by gene expression, magnetic resonance imaging, histology, and total proteoglycan is antianabolic. This raises concern about this commonly used supplement, and future research is needed to establish the clinical relevance of these findings.
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Randomized Controlled Trial Multicenter Study Comparative Study
A randomized trial of balloon kyphoplasty and nonsurgical management for treating acute vertebral compression fractures: vertebral body kyphosis correction and surgical parameters.
Multicenter randomized controlled trial. ⋯ 2.
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Observational Study
Do L5 and s1 nerve root compressions produce radicular pain in a dermatomal pattern?
Observational case series. ⋯ 4.
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Case Reports
Intradural lumbar disc herniation associated with degenerative spine disease and rheumatoid arthritis.
A case report. ⋯ Intradural disc herniations are a rare entity. The opening and inspection of the dural sack should be considered when the correct spinal level can be confirmed and insufficient herniated disc material can be visualized extradurally.