目的：评估椎体后凸成形术（PKP）后继发邻近椎体骨折的相关危险因素。方法对103例因骨质疏松致椎体压缩骨折行单或多节段PKP治疗的患者进行回顾性研究，对患者性别、年龄、体重指数、骨密度、伤椎压缩程度、有无侧凸畸形，伤椎前缘恢复程度、骨水泥注入量、手术入路（单侧、双侧）、骨水泥渗漏（椎间盘）等资料进行统计学分析。结果103例均获得随访，时间6～15（9.6±2.8）个月。27例患者继发邻近椎体骨折，再骨折率为26.2％。将各因素输入Logistic回归“向前Wald”的分析模型，结果显示骨密度、骨水泥量、体重指数及伤椎前缘恢复程度是术后继发邻近椎体骨折的相关危险因素。结论骨水泥量过大、低体重指数、伤椎前缘高度过度恢复、低骨密度是PKP术后继发邻近椎体压缩骨折的危险因素。%Objective To evaluate the risk factors of secondary adjacent vertebral fractures after percutaneous ky-phoplasty (PKP).Methods 103 cases of vertebral compression fractures caused by osteoporosis in patients with single or multiple line segments PKP retrospective study of treatment for patients with gender,age,body mass index, bone density,vertebral compression injury,with or without scoliosis,the leading edge of the injured vertebra degree of recovery,the amount of bone cement injection,surgical approach (unilateral,bilateral),bone cement leakage (disc) and other data were statistically analyzed.Results 103 cases were followed up for 6 ~15 (9.6 ±2.8)months.27 patients had secondary adjacent vertebral fracture,re-fracture rate was 26.2%.Logistic regression of factors enter the“forward Wald”analysis model showed that bone mineral density,bone cement volume,body mass index and degree of recovery of the injured vertebra leading edge of the risk factors associated with postoperative secondary was adjacent vertebral fractures.Conclusions Over dose bone cement,low body mass index,over restoration of injured vertebra an-terior height and low bone density are the risk factors of secondary adjacent vertebral compression fractures after PKP.
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