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| Clinical Research of Vertebral Pedicle Screw Poking Reduction and Internal Fixation via Minimally Invasive Approach for the Treatment of Thoracolumbar Fractures |
| Yishui Central Hospital of Linyi City，Yishui 276400，China |
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Abstract Objective：To investigate the protection measures and clinical effects of spine stabilizing system of posterior reduction and internal fixation for the treatment of thoracolumbar fractures.Method：43 patients with thoracolumbar fractures who were treated with vertebral pedicle screw poking reduction and internal fixation admitted to our hospital from January 2010 to January 2013 were selected as research objects.They were divided into the modified paraspinal approach group（paraspinal approach group） for 23 cases and the traditional posterior median approach group（conventional approach group） for 20 cases according to the random number table method.The operative time，intraoperative blood loss，postoperative drainage volume，postoperative lumbar pain（VAS）and radiographic indexes between the two groups were compared.Result：Patients of the two groups were followed up for 12-18 months，The operative time of the paraspinal approach group was significantly shorter than the conventional approach group，the intraoperative blood loss and postoperative drainage volume of the paraspinal approach group were significantly less than the conventional approach group，the differences were statistically significant（P<0.05）.There was no statistically significant difference in the average VAS score before surgery（P>0.05）.The average VAS score of paraspinal approach group 3 days after surgery and the last follow-up were significantly lower than the conventional approach group，the differences were statistically significant（P<0.05）.Up to the last follow-up，the fracture vertebral height of two groups were no loss，no fracture internal fixation，vertebral height restoration in two groups were satisfied.Conclusion：The influence of modified paraspinal approach for the thoracolumbar spinal fracture to the paraspinal muscle is small，less complications，is conducive to the protection of spine stabilizing system，and there are synergistic effects with transpedicular screw fixation，can obtain good therapeutic effect.
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