Spine
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Retrospective review of a prospective multicenter database. ⋯ 3.
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Retrospective case analyses. ⋯ 4.
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Retrospective comparative cohort. ⋯ 3.
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Comparative Study
The NuVasive MAGEC Rod Urgent Field Safety Notice Concerning Locking Pin Fracture: How Does Data From an Independent Explant Center Compare?
Analysis of explanted MAGnetic Expansion Control (MAGEC) growing rods. ⋯ 4.
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Cohort study (level 3). ⋯ 3.