层剥减压加椎弓根螺钉系统固定植骨融合治疗下胸椎管狭窄症

Treatment of lower thoracic spinal canal stenosis by Stratification Removal and transpedicle instrument fixation Niezhihong,

目的探讨下位胸椎管狭窄症的特点和手术方法。方法28例下位胸椎管狭窄症患者，男13例，女15例；年龄39—68岁，平均51岁。后方入路，采用层剥减压加椎弓根螺钉系统固定植骨融合。观察术后的疗效和手术的安全性。结果术后26例获得随访，随访时15个月～5年，平均36．3个月。28例患者术后无一例症状加重。术后26例患者脊髓功能不同程度提高．术后改善率92．3％（24／26）。结论层剥减压加椎弓根螺钉系统固定植骨融合是一种安有效的手术方法，适合于下位胸椎管狭窄症患者。

Objective To discuss the method and safety of operation in treatment of thoracic spinal stenosis.Methods 28 cases of thoracic spinal stenosis were included in the study, male 13cases, female 15 cases, the range of age from 39 to 68 years （mean age 51 years） .Dorsal approach was advocated in decompression. All of these cases were treated with stratification removal and transpedicle instrument fixation. Results 26 cases were followed up, and mean follow-up period was 36.3 months （range, from 15 to 60 months） . The symptom did not get worse after operation. According to Mann clas-sification, the lower limb function relief rate was 92.3% （24/26） after operation. Conclusion Stratification removal and transpedicle instrument fixation was a safe and effective operation method, especially in cases of lower thoracic spinal canal stenosis.