Spine
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A case report of a patient with a congenital anomaly of the posterior arch of the atlas and review of the literature are reported. ⋯ This case illustrates a symptomatic congenital deformity of the posterior arch of the atlas due to a mobile, isolated fragment. These anomalies are exceedingly rare. To date, only 17 patients, including ours, have been described in the literature as having myelopathy related to an isolated posterior tubercle. Of these, only two patients had documented movement of this tubercle before our report. Recognizing the anomaly is crucial because treatment is relatively simple, produces resolution of symptoms, and prevents major neurologic deficits from occurring after trauma.
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Randomized Controlled Trial Comparative Study Clinical Trial
A prospective, randomized, controlled cervical fusion study using recombinant human bone morphogenetic protein-2 with the CORNERSTONE-SR allograft ring and the ATLANTIS anterior cervical plate.
A prospective, randomized, pilot clinical trial compared recombinant human bone morphogenetic protein-2 (rhBMP-2) with iliac crest autograft bone for the treatment of human cervical disc disease. ⋯ This pilot study demonstrates the feasibility of using rhBMP-2 safely and effectively in the cervical spine.
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Comparative Study Guideline
Updated method guidelines for systematic reviews in the cochrane collaboration back review group.
Descriptive method guidelines. ⋯ Systematic reviews need to be conducted as carefully as the trials they report and, to achieve full impact, systematic reviews need to meet high methodologic standards.
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Comparative Study
A biomechanical comparison of facet screw fixation and pedicle screw fixation: effects of short-term and long-term repetitive cycling.
A biomechanical study was conducted to assess the stabilization performance of transfacet pedicle screw fixation. ⋯ The stability provided by both transfacet pedicle screw fixation and traditional pedicle screw fixation was not compromised after repetitive cycling. In this model, transfacet pedicle screw fixation appears equivalent biomechanically to traditional pedicle screw fixation.
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Comparative Study
Comparison of one-stage versus two-stage anteroposterior spinal fusion in pediatric patients with cerebral palsy and neuromuscular scoliosis.
A retrospective study was performed including 45 pediatric patients with spastic quadriplegic cerebral palsy and neuromuscular scoliosis who underwent anteroposterior spinal fusion. ⋯ Two-stage anteroposterior spinal fusion provides safer and more consistent results with several advantages over the single-stage procedure in the management of patients with cerebral palsy and neuromuscular scoliosis.