经伤椎椎弓根螺钉内固定治疗胸腰椎骨折脱位

Treatment for Thoracolumbar Spinal Fracture and Dislocation with the Injured Vertebra Fixation by Pedicle Screw

目的：探讨经伤椎椎弓根螺钉内固定治疗胸腰椎骨折脱位的疗效。方法：对25例胸腰椎骨折脱位采用经伤椎椎弓根螺钉内固定，观察术后伤椎复位情况。结果：25例随访12个月～18个月，平均15个月，骨折均达到临床愈合。对比术前、术后1周伤椎前缘高度的比值、cobbs角均有显著差异（P〈0．05）：术后1周对比术后12个月伤椎前缘高度的比值、cobbs角无显著差异（P〉0．05）。结论：经伤椎椎弓根置钉内固定可提高复位质量，增强脊柱的稳定性，是治疗胸腰椎骨折脱位安全有效的方法。

Objective： To explore surgical treatment for thoracolumbar spinal fracture and dislocation with the injured vertebra fixation by pedicle screw. Methods： 25 cases of thoracolumbar spinal fractures and dislocation were treated with the injured vertebra fixtion by pedicle screw, and observed the injured vertebra reduction after operation. Results： All the patients were followed up for 12--18 months（average 15 months）. Bone union was observed in the all fractures. 25 patients were comparatively analyzed according to the injured vertebral height , Cobb＇s angle. Postoperative fractured vertebral height and Cobb＇s angle had significant difference compared with preoperative cases （P〈0. 05）. The fractured vertebral height and Cobb＇s angle in postoperative one week was better than those in postoperative twelve months, but no statistical significance （P〉0. 05）. Conclusions： Implantation of pedicle screws in the injured vertebra is a safe and effective therapentic option to treat thoracolumhar spinal fracture and dislocation, which is able to improve the stabilization.