球囊扩张椎体后凸成形术体外实验研究  

An ex Vivo Study of Kyphoplasty

作　　者：唐迎九[1] 杨惠林[2] 章洪喜[1] 王海[3] 陈文忠[4] 苏虹[5] 

机构地区：[1]江苏大学附属人民医院骨科,江苏镇江212002 [2]苏州大学附属第一医院骨科,江苏苏州215006 [3]江苏大学附属人民医院CT室 [4]江苏大学附属人民医院放射科,江苏镇江212002 [5]江苏大学理学院,江苏镇江212013

出　　处：《江苏大学学报（医学版）》2004年第4期289-291,294,共4页Journal of Jiangsu University：Medicine Edition

摘　　要：目的 :探讨球囊扩张椎体后凸成形术对骨质疏松压缩骨折椎体高度的恢复作用。方法 :5具老年女性胸腰段脊柱标本 (T11～L2 ) ,X线摄片无明显病理异常 ,双能X线吸收骨密度仪 (DEXA)测定椎体骨密度 (BMD) ,证实为骨质疏松标本。将标本游离成单个椎体 ,每具标本选择 2个椎体共 10个椎体 ,用材料试验机轴向加载 ,压缩椎体高度2 5 % ,制造椎体压缩骨折。对骨折椎体进行球囊扩张椎体后凸成形术注入骨水泥 ,观察骨水泥外渗漏情况。椎体标本在骨折前、骨折后及球囊扩张椎体后凸成形术后均测量椎体高度。结果 :球囊扩张体积平均 (5 13± 0 72 )ml。骨水泥注入量平均 (5 35± 0 6 2 )ml。所有标本未发现骨水泥外渗漏情况。骨折前、后及治疗后椎体平均高度分别为 (2 3 0 4±2 2 0 )mm、(2 0 5 8± 2 2 4 )mm和 (2 2 74± 2 2 0 )mm ,治疗后椎体高度恢复率 (87 76± 6 4 5 ) %。结论 :骨质疏松压缩骨折椎体经球囊扩张椎体后凸成形术可显著恢复骨折椎体高度 ,临床应用球囊扩张椎体后凸成形术治疗骨质疏松椎体压缩骨折可达到恢复椎体高度 ,矫正脊柱后凸畸形的目的。Objective: To examine whether kyphoplasty is effective in restoring the height of osteoporotic vertebral bodies subjected to compression fractures. Method: Ten osteoporotic vertebral bodies were harvested from five female embalmed cadavers,separated into individual vertebral bodies. All vertebral bodies were compressed in a materials testing machine to creat compression fractures. They were then repaired using kyphoplasty. Precompression,postcompression and posttreatment heights of vertebral body were measured. Results: The kyhpoplasty treatment resulted in significant restoration (87.76%) of vertebral body height lost after compression. No extravasation of cement was found out of vertebral bodies. Conclusion: The kyphoplasty can restore vertebral body height lost after compression and decrease cement extravasation.

关 键 词：球囊扩张椎体后凸成形术 骨水泥 骨质疏松椎体压缩骨折 

分 类 号：R681[医药卫生—骨科学]