Spine
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Case Reports
Acute intracranial subdural hematoma following a lumbar CSF leak caused by spine surgery.
Case report. ⋯ We report the rare case of an acute intracranial subdural hematoma caused by a CSF leak following lumbar surgery. This report illustrates the potential morbidity associated with CSF leaks occurring after spinal surgery.
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A finite-element study of posterior alone or anterior/posterior combined instrumentation following total spondylectomy and replacement with a titanium mesh cage used as an anterior strut. ⋯ This experiment shows that from the viewpoint of stress shielding, the reconstruction method, using additional anterior instrumentation with posterior pedicle screws (MPAI and SPAI), stress shields the cancellous bone inside the titanium mesh cage to a higher degree than does the system using posterior pedicle screw fixation alone (MPI). Thus, a reconstruction method with no anterior fixation should be better at allowing stress for remodeling of the bone graft inside the titanium mesh cage.
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Postoperative outcomes of cervical pedicle screw (CPS) placement were evaluated. The screws were inserted in degenerative vertebrae using anatomic landmarks. ⋯ The deviation rate of CPS placement using anatomic landmarks was higher than anticipated, although no serious complications were encountered. Refinement of the technique (e.g., using a computer-assisted navigation system) is strongly recommended.
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Comparative Study
Ischemic injury-specific gene expression in the rat spinal cord injury model using hypoxia-inducible system.
A spinal cord injury and in vitro neural hypoxia models were used to evaluate the hypoxia responsive gene expression. ⋯ The pEpo-SV-Luc and pRTP801-Luc systems are effective in that they induce gene expression specifically in neurons under the hypoxic condition and spinal cord injury.
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Comment Letter Comparative Study
Interspinous process decompression system (X STOP) device affords superior outcomes and equal safety to nonoperative therapy.