Spine
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Retrospective cohort study. ⋯ Level 3.
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Single-center retrospective chart review study. ⋯ IVC filters in this high-risk spine surgery cohort achieved a relatively low rate of DVT and PE as well as a low complication rate, whereas several patient characteristics were identified that correlated with VTE events and filter retrieval outcomes.
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External validation using prospectively collected data. ⋯ DS is not directly transferable to predict satisfaction and success after lumbar surgery in a US population. This may be due to differences in patient characteristics, weights of the variables included, or the exclusion of unknown variables associated with outcomes. Future studies to better understand and improve the transferability of these models are needed.
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Retrospective cohort study with interrupted time series analysis. ⋯ 3.