Journal of spinal disorders & techniques
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J Spinal Disord Tech · Jun 2008
Randomized Controlled TrialReliability of a magnetic resonance imaging-based grading system for cervical intervertebral disc degeneration.
This was a radiographic reliability study of a novel grading system for cervical intervertebral disc degeneration. ⋯ This grading system is comprehensive and easily applicable with sufficient reproducibility. It can be used as a common nomenclature for research and discussions.
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J Spinal Disord Tech · Jun 2008
ReviewVertebral artery injuries associated with cervical spine injuries: a review of the literature.
Literature review. ⋯ VAIs can occur in association with cervical spine trauma and have the potential for neurological ischemic events. Screening for and treatment of asymptomatic VAIs may be considered, but it is unclear based on the current literature whether these strategies improve outcomes.
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J Spinal Disord Tech · Jun 2008
Internal and external responses of anterior lumbar/lumbosacral fusion: nonlinear finite element analysis.
Determination of external and internal responses of the human lumbosacral spine using a validated 3-dimensional finite element model. ⋯ At the fused level, the caudal fusion imparted additional rigidity under flexion to the lumbosacral joint. Both fusion masses added flexibility to the adjacent segment. Under both fusion masses, increased facet joint pressure in the lumbosacral joint indicates the susceptibility of this transitional joint to long-term biomechanics-induced consequences. Increased facet joint pressures with the rostral fusion indicate that the posterior complex responds with increased load sharing, and may predispose the spine to facet-related arthropathy. Increased stresses in the adjacent disc with the caudal fusion under both modes of loading imply the potential to disc-related changes owing to long-term physiologic loading.
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Retrospective study of consecutive patients that were struck by motor vehicles and sustained spinal injuries over a 6-year period from 1997 to 2003. ⋯ Spinal injuries in pedestrians struck by motor vehicles are more evenly distributed throughout the spinal column and more often coexist with injuries to remote organs compared with car occupants and motorcyclists where regional tendencies and isolated spinal injuries are more frequent. A systematic approach to both diagnosis and treatment is, therefore, necessary. Helical truncal CT, performed to evaluate visceral injury, effectively screens for TL fractures.
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J Spinal Disord Tech · Jun 2008
Controlled Clinical TrialEvolution of bone mineral density after percutaneous kyphoplasty in fresh osteoporotic vertebral body fractures and adjacent vertebrae along with sagittal spine alignment.
Prospective controlled cohort study of 27 adult osteoporotic patients who underwent kyphoplasty for fresh osteoporotic spinal fractures. ⋯ The observed 2-year evolution of vertebral endplate BMD, after kyphoplasty under stable global sagittal spinal balance, might contribute to the pathogenesis of new fractures in adjacent vertebra. However, other studies with control series and longer follow-up are necessary to show if these BMD changes are the result of vertebral augmentation or are merely natural history.