Spine
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A systematic review of published trials in orthopedic spine literature. ⋯ This study shows that in open spine surgery RCTs information on skill and experience is scarcely reported. Authors often fail to report essential methodological safeguards. These studies may therefore be prone to expertise bias.
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Nine patients with malignant sacral tumor underwent 1-stage total sacrectomy. The oncological and functional results are analyzed. ⋯ Total sacrectomy can be performed successfully using a 1-stage combined anterior and posterior approach and is an important procedure for the treatment of primary malignant tumor involving the top portion of or the whole sacrum.
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Cross-sectional retrospective study. ⋯ N/A.
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Biomechanical in vitro study. ⋯ We established a human herniation model that reliably produced nucleus extrusion during cyclic loading by selecting specimens with low disc degeneration. The Barricaid seems to prevent nucleus from reherniating. The reliability of this method suggests the opportunity to investigate other anulus closure devices and nucleus replacement techniques critically.
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Animal experimental study. ⋯ 2.