骨质疏松椎体压缩性骨折行椎体后凸成形术后同一椎体再压缩相关因素研究

Recompression of vertebral body after balloon kyphoplasty for osteoporotic vertebral compression fracture

目的研究骨质疏松椎体压缩性骨折行PKP术后同一椎体再压缩的影响因素及在临床中的重要性。方法回顾分析我院应用PMMA材料行PKP治单节段胸腰椎OVCF并资料完整的患者94例,进行不少于1年的随访,根据患者的病史资料及影像学表现,分为无压缩的对照组和再压缩两组,通过两组的对比进行相关分析。结果术前、术后及随访末期VAS评分两组三者之间有明显的差异(P<0.05),最后的后凸角、椎体间的裂隙及骨水泥无终板的接触两组之间有显著的差异(P<0.001),在评估因素的相关性测试中,IVC(r=0.557),NPEC(r=0.496)是最要用的影响因素。结论 IVC和NPEC是两个导致PKP术后同一椎体再压缩的重要因素,对有上述因素的患者进行长期的临床观察随访是必要的。

Objective The purpose of this retrospective clinical study was to evaluate the fac-tors that affect recompression of operated vertebrae after percutaneous balloon kyphoplasty （PKP） for osteoporotic vertebral compression fractures （VCFs）,and to assess their clinical importance. Methods A total of 94 patients treated with PKP for single thoracolumbar VCFs were reviewed. The follow-up period was at least 1 year. Patients were divided into those without recompression and those with recompression. Results The KA showed the same pattern. The preoperative, post-operative and last VAS scores were significantly different from one another in both groups（P〈0.05）. Last KA,IVC,and NPEC showed significant differences （P〈0.001）. In a correlation test for the in-fluence factors,IVC （r=0.557） and NPEC （r=0.496） were the most significant. Conclusion The presence of IVC and NPEC may play important roles in inducing recompression of treated vertebrae after PKP. Careful observation of patients with these conditions is necessary to prevent deterioration of their clinical course.