Spine
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Establishment of immortalized cell lines derived from rat intervertebral disc cells by Rho-associated kinase (ROCK) inhibitor, Y-27632. ⋯ N/A.
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A retrospective study. ⋯ 4.
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A cross-sectional study. ⋯ The spinal cord diameter was independent of the spinal canal diameter and the relative size of a spinal cord and spinal canal differed on an individual basis. In addition, the ratio of spinal cord/dural sac in subjects with SCC was significantly larger. Therefore, a relatively large spinal cord could be a risk factor for SCC.
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Fatigue Performance of Cortical Bone Trajectory Screw Compared to Standard Trajectory Pedicle Screw.
Cadaveric biomechanical study. ⋯ The standard pedicle screw had a better fatigue performance compared with the CBT screw in vertebra with compromised bone quality. The proper insertion of the CBT screw might be prevented by the laminar anatomy depending on the screw head design. The CBT screw damaged the bone along its shaft by rotating around a fulcrum, located at either the pars, pedicle isthmus, or the junction of the pedicle and superior endplate, contingent upon the strength of the bone.
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A retrospective study. ⋯ The same change of LL and TK and no significant difference in LL-TK indicated that LL-TK might be an important compensatory mechanism in keeping sagittal balance.