Clinical spine surgery

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• Clinical spine surgery · May 2016

  A New Navigational Tool for Pedicle Screw Placement in Patients with Severe Scoliosis: A Pilot Study to Prove Feasibility, Accuracy, and Identify Operative Challenges.

  Pilot study. ⋯ The new custom-made positioning guide is a feasible navigational tool which permits a safe and accurate implantation of pedicle screws in patients with severe scoliosis.

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• Clinical spine surgery · May 2016

  Cement Leakage in Percutaneous Vertebral Augmentation for Osteoporotic Vertebral Compression Fractures: Analysis of Risk Factors.

  The risk factors for cement leakage were retrospectively reviewed in 192 patients who underwent percutaneous vertebral augmentation (PVA). ⋯ High bone density and vertebral cortical bone defect are independent risk factors associated with bone cement leakage.

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• Clinical spine surgery · May 2016

  The Compensatory Relationship of Upper and Subaxial Cervical Motion in the Presence of Cervical Spondylosis.

  This study was an in vivo kinematic magnetic resonance imaging analysis of cervical spinal motion in human subjects. ⋯ Our study demonstrates that decreased subaxial cervical spinal motion is associated with intervertebral disk degeneration in a symptomatic population. This decrease in mobility at the subaxial cervical spine is compensated for by an increase in angular mobility of the upper cervical spine at the occipital-atlantoaxial complex, especially at Oc-C1.

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