Spine
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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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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.
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Laboratory study. ⋯ N/A.
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Comparative Study
Demographic and health characteristics of rural- and urban-dwelling canadians with chronic back disorders: a population-based comparison.
This is a cross-sectional design based on analysis of a national survey. ⋯ 2.
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Randomized Controlled Trial Multicenter Study Observational Study
The effect of high obesity on outcomes of treatment for lumbar spinal conditions: subgroup analysis of the spine patient outcomes research trial.
Spine Patient Outcomes Research Trial subgroup analysis. ⋯ 3.