Spine
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Cross-sectional study. ⋯ 3.
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Multicenter Study
Preoperative anemia does not predict complications after single-level lumbar fusion: a propensity score-matched multicenter study.
Multicenter retrospective cohort study. ⋯ 3.
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Randomized Controlled Trial
Can pelvic tilt be predicated by the sacrofemoral-pubic angel in patients with thoracolumbar kyphosis secondary to ankylosing spondylitis?
A retrospective radiographical study. ⋯ 4.
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Retrospective propensity score-matched analysis on a national database (MarketScan) between 2006 and 2010. ⋯ 3.
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Randomized Controlled Trial
Morbidity, mortality, and readmission after vertebral augmentation: analysis of 850 patients from the American College of Surgeons National Surgical Quality Improvement Program database.
Retrospective cohort study. ⋯ 3.