Spine
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Explant analysis for bone ingrowth of retrieved cervical disc prosthesis in chimpanzees and humans. ⋯ Adequate bony apposition was found in all primate device-to-vertebral body interfaces. Human retrievals also demonstrated significant ingrowth in all four surfaces. This compares with hip and knee arthroplasty percent ingrowth rates of 10% to 30%. All implants had stable fixation judged by radiographs and at the time of implant removal.
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Multicenter Study
Dysphagia after anterior cervical decompression and fusion: prevalence and risk factors from a longitudinal cohort study.
Retrospective analysis of the incidence and prevalence of dysphagia after anterior cervical decompression and fusion (ACDF). ⋯ Duration of preexisting pain and the number of vertebral levels involved in the surgical procedure appear to influence the likelihood of dysphagia after ACDF.
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Randomized Controlled Trial
A prospective, randomized, double-blind study evaluating the efficacy of postoperative continuous local anesthetic infusion at the iliac crest bone graft site after spinal arthrodesis.
Parallel design, prospective, double-blind, randomized, controlled trial composed of two independent groups treated with a continuous infusion catheter (saline vs. Marcaine) placed into the iliac crest bone graft (ICBG) site. ⋯ Continuous infusion of 0.5% Marcaine at the ICBG harvest site reduced postoperative parenteral narcotic usage by 50% and decreased overall pain scores. No complications were attributed to the infusion-catheter system. The use of continuous local anesthetic infusion at the iliac crest may help in alleviating acute graft-related pain, hastening patient recovery and improving short-term satisfaction.
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Literature review. ⋯ Physician recommendations for work and activity have important health and financial implications. Systemic, multidimensional approaches are necessary to improve performance.
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Case Reports Comparative Study Clinical Trial
Axial symptoms after cervical laminoplasty with C3 laminectomy compared with conventional C3-C7 laminoplasty: a modified laminoplasty preserving the semispinalis cervicis inserted into axis.
Results of C4-C7 laminoplasty with C3 laminectomy and C3-C7 laminoplasty were compared. ⋯ This method was less invasive to the cervical posterior muscles than C3-C7 laminoplasty. This is an effective procedure for preventing postoperative axial symptoms.