Spine
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A biomechanical study of facet joint pressure after total disc replacement using cadaveric human cervical spines during lateral bending and axial torsion. ⋯ Implantation of a ProDisc-C does not significantly modify the kinematics and facet pressure at the index level in cadaveric specimens during lateral bending and axial torsion. However, changes in facet contact pressures after disc arthroplasty may have long-term effects on spinal loading and cartilage degeneration and should be monitored in vivo.
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Retrospective cohort. ⋯ Carotid arterial anomalies occurred in 12.3% of cases; severe aberrancy was present in 2.6% of patients. In elderly females with kyphotic alignment, a high index of suspicion must be raised for aberrancy. Preoperative assessment of the vasculature in the anterior neck may avoid catastrophic complications.
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Case series study. ⋯ Surgical treatment of high cervical radiculopathies resulted in acceptable outcomes. To our knowledge, this is the largest series of this relatively rare condition.
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Analysis of the growth, utilization trends, and Medicare expenditures of spinal interventional pain management techniques from 2000 through 2008. ⋯ The study suggests explosive increases in spinal interventional techniques from 2000 to 2008, with some slowing of growth in later years.
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Retrospective study. ⋯ This study is the first to describe the prevalence of LUTS and NB according to the most recent criteria in patients with pure cervical spondylotic myelopathy, which demonstrated that neurological functions in NB patients may recover; however, the extent will be limited to two-thirds of those in patients with no-NB; moreover, the remaining symptoms derive from poor lower limb function.