Spine
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Observational cross-sectional population study using national sample of pediatric hospital discharges from 2000 to 2009. ⋯ 4.
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Retrospective cohort study. ⋯ 3.
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Sagittal pelvic parameters (SPPs) of a representative patient sample drawn from a consecutive adult spinal deformity database were measured using Surgimap Spine. Estimated coefficient of reliability intraclass coefficient (95% confidence interval), standard error of measurement, and mean absolute deviation were used for the analysis. ⋯ 4.
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Prospective cohort study. ⋯ 4.
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Human volunteers were exposed experimentally to multidirectional seated perturbations. ⋯ N/A.