Spine
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Retrospective database review. ⋯ 3.
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A three-dimensional finite element model of intact lumbar spine was constructed and four surgical finite element models implanted with ball-and-socket artificial discs with four different radii of curvature were compared. ⋯ N/A.
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Prospective multicenter study of adult spinal deformity (ASD) surgery. ⋯ 4.
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Prospective clinical trial of the screw insertion method for posterior C1-C2 fixation utilizing the patient-specific screw guide template technique. ⋯ 3.