Spine
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Retrospective cohort study. ⋯ 3.
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Multicenter Study Observational Study
Minimum Detectable Measurement Difference (MDMD) for Health Related Quality of Life (HRQL) Measures Varies According Age and Disability in Adult Spinal Deformity (ASD): Implications for Calculating Minimal Clinically Important Difference (MCID).
Retrospective cohort. ⋯ 3.
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Multicenter Study
A Multicenter Radiographic Evaluation of the Rates of Preoperative and Postoperative Malalignment in Degenerative Spinal Fusions.
Multicenter, retrospective, institutional-review-board -approved study at 18 institutions in the United States with 24 treating investigators. ⋯ 3.
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Multicenter Study
Impact of iliac instrumentation on the quality of life of patients with adult spine deformity.
Retrospective comparative analysis of data collected prospectively in an adult spine deformity (ASD) multicenter database. ⋯ 4.
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Comparative Study
Comparing Health Related Quality of Life Outcomes in Patients Undergoing Either Primary or Revision Anterior Cervical Discectomy and Fusion.
A retrospective review of prospectively collected data. ⋯ 2.