Spine
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Randomized Controlled Trial Multicenter Study Comparative Study
Long-term Outcomes of the US FDA IDE Prospective, Randomized Controlled Clinical Trial Comparing PCM Cervical Disc Arthroplasty With Anterior Cervical Discectomy and Fusion.
Prospective, multicenter, randomized clinical trial. ⋯ 1.
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Multicenter Study
SRS-7: A Valid, Responsive, Linear, and Unidimensional Functional Outcome Measure for Operatively Treated Patients With AIS.
Comparison of the Scoliosis Research Society-22 (SRS-22) questionnaire with a 7-item Rasch-derived questionnaire (SRS-7). ⋯ 4.
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Multicenter Study
Spinal hemangiomas: results of surgical management for local recurrence and mortality in a multicenter study.
Multicenter, ambispective observational study. ⋯ 3.