Spine
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Retrospective cohort study with prospective clinical follow-up. ⋯ In our series, the symptom duration before operation and the speed of onset do not affect the outcome more than 2 years after surgery. Based on the SF-36, ODI, and Low Back Outcome Scores, patients who have had CES do not return to a normal status.
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In vitro biomechanical flexibility experiment studying 5 sequential conditions. ⋯ Direct fixation of the pars ineffectively limits flexion and extension after a Type II hangman's fracture. If pars screw fixation can be achieved, posterior C2-C3 fixation more effectively stabilizes a hangman's fracture than anterior cervical plating.
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A retrospective evaluation of anterior instrumentation of the vertebral bodies in the thoracolumbar spine. ⋯ There is adequate space anteriorly in the vertebral body, above and below the segmental vessels, for the insertion of one screw, even with staples.
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The DRG neuron was electrophysiologically investigated using a rat model with constriction of the proximal site of the DRG. ⋯ The constriction of lumbar root increased excitability and Na current amplitude of DRG neurons. These findings indicate that lumbar radicular pain may be associated with increased excitability of involved DRG neurons.