Spine
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Case Reports
Polyethylene wear debris and long-term clinical failure of the Charité disc prosthesis: a study of 4 patients.
A clinical case series of 4 patients undergoing anterior lumbar revision due to failure of total disc replacement surgery. ⋯ This study demonstrates the clinical significance of polyethylene wear debris and the potential for osteolysis with total disc replacements. The authors recommend that patients undergoing lumbar disc arthroplasty receive long-term follow-up to monitor the wear and functional status of their implants.
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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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Clinical results of posterolateral endoscopic debridement and irrigation followed by percutaneous drainage for pyogenic spondylodiscitis were analyzed. ⋯ Posterolateral spinal endoscopic debridement and irrigation brought immediate pain reduction and good clinical results to patients who had comorbid medical problems and had pyogenic spondylodiscitis.
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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.