Spine
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Biomechanical in vitro laboratory study. ⋯ Constrained dual-screw fixation characteristics in modern AISF implants can improve resistance to cyclic loading and pullout forces. DC constructs bear the potential to reduce the mechanical shortcomings of AISF.
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Retrospective database analysis. ⋯ This nonconflicted study demonstrates that the utilization of BMP has dramatically increased from 2002-2011. Interestingly, off-label application of BMP accounts for the vast majority of BMP utilization. The increase in the total hospital costs is likely multifactorial; older patients with more comorbidities undergoing surgery as well as the increasing utilization of BMP are all likely contributory factors. The length of hospitalization stay and mortality rates did not increase during the 10-year period.
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Retrospective analysis. ⋯ 3.
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Animal experimental study. ⋯ The NP voxel count proved to be a valid parameter to assess disc degeneration quantitatively in a needle puncture model. The mean NP T2-RT does not change significantly in needle-puncture-induced degenerated IVDs. IVDs can be segmented into different tissue components according to their innate T2-RT.
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Retrospective study of surgically treated patients with adolescent idiopathic scoliosis. ⋯ 4.