Spine
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Retrospective review of prospectively collected data. ⋯ 3.
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Evaluation using 3-dimensional screw trajectory software and computed tomographic scans. ⋯ In view of their anatomic feasibility, laminar screws can be a viable alternative to PSs in the upper thoracic spine. Particularly at T3 to T6 where the pedicle width is inherently small, the success rates of laminar screw placement were significantly and consistently higher than those of PS placement. The comparable success rates of laminar screws using commercially available screw sizes further emphasize their potential clinical use.
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A case report. ⋯ Increased frequency and severity of respiratory tract infections, difficulty in expelling mucus and dyspnea are warning signs of compromised airways. Spirometry tests and image tests such as computed axial tomography and bronchoscopy are essential for diagnosis. Surgical approach may be the treatment of choice.
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Retrospective national database analysis. ⋯ 4.
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The pretension of the Dynesys cord was varied to evaluate its effects on both tissue responses and screw-spacer behaviors by the finite-element method. ⋯ 4.