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Abstract Objective：To research on bone grafting like cone pedicle for thoracic and lumbar fracture in GSS internal fixation.Method：From February 2011 to February 2014，60 patients with thoracic and lumbar fracture in our hospital were given the fusion treatment of GSS internal fixation of pedicle screw-rod system， bone grafting in vertebral arch and posterolateral bone grafting.Result：After the operation， these patients were given postoperative follow-up.It was found that incision of 60 cases was primary healing.The X-ray showed that their spinal sequence and physiological curvature largely returned to normal.The height of vertebral body returned to 78%- 98% of the normal height.The reset rate was as high as 98%.Improvement in pain symptom and function was over 96%.No loose or fractured screw rods and no complications of spinal cord and nerve root injury were found.Conclusion：After the research， it is found that for the operation of thoracic and lumbar fracture， the application of vertebral arch bone grafting and vertebral plate posterior bone grafting， which stabilized the front， middle and posterior column of vertebral body， can avoid fractured screw as well as rod and loose pedicle screw.At the same time， it can avoid the vertebral body lose its height and also lighten the pain of the patients.Therefore， it will be the main trend of treatment of thoracic and lumbar fracture.
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