Spine
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Randomized Controlled Trial Multicenter Study
Clinical outcomes with selectively constrained SECURE-C cervical disc arthroplasty: two-year results from a prospective, randomized, controlled, multicenter investigational device exemption study.
Prospective, multicenter, randomized, and controlled Investigational Device Exemption clinical trial. ⋯ 1.
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Multicenter Study Clinical Trial
Anterior versus posterior surgical approaches to treat cervical spondylotic myelopathy: outcomes of the prospective multicenter AOSpine North America CSM study in 264 patients.
A prospective observational multicenter study. ⋯ 3.
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Multicenter Study
Complications in pediatric spine surgery using the vertical expandable prosthetic titanium rib: the French experience.
Multicenter retrospective study of 54 children. ⋯ The complication rate is consistent with that reported in the literature. Correct determination of the levels to be instrumented, preoperative improvement of nutritional status, and better evaluation of the preoperative and postoperative respiratory function are important factors in minimizing the potential complications of a technique that is used in weak patients with complex deformities.
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Randomized Controlled Trial Multicenter Study
rhBMP-2 for posterolateral instrumented lumbar fusion: a multicenter prospective randomized controlled trial.
Multicenter randomized controlled trial. ⋯ The use of rhBMP-2 for instrumented posterolateral lumbar surgery significantly improves the chances of radiographical fusion compared with the use of autograft. However, there is no associated improvement in clinical outcome within a 4-year follow-up period. These results suggest that use of rhBMP-2 should be considered in cases where lumbar arthrodesis is of primary concern.