Spine
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Multicenter Study Comparative Study
Analysis of Successful vs. Failed Radiographic Outcomes following Cervical Deformity Surgery.
Prospective multicenter cohort study with consecutive enrollment. ⋯ 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
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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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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A retrospective matched-cohort comparative study. ⋯ 3.