中国组织工程研究 ›› 2015, Vol. 19 ›› Issue (44): 7177-7181.doi: 10.3969/j.issn.2095-4344.2015.44.023

• 骨与关节生物力学 bone and joint biomechanics • 上一篇    下一篇

椎体后凸成形骨水泥注入对骨质疏松邻近腰椎生物力学的作用

艾买江库尔班1,范顺武2,刘 超2,汪银魁1,沈宏达1   

  1. 1阿克苏市兵团第一师医院脊柱烧伤外科,新疆维吾尔自治区阿克苏市  843000;2浙江大学医学院附属邵逸夫医院骨科,浙江省杭州市  310016
  • 收稿日期:2015-09-08 出版日期:2015-10-22 发布日期:2015-10-22
  • 通讯作者: 艾买江库尔班,新疆阿克苏市兵团第一师医院脊柱烧伤外科,新疆维吾尔自治区阿克苏市843000
  • 作者简介:艾买江库尔班,男,1979年生,新疆维吾尔自治区阿克苏市人,维吾尔族,主治医师,主要从事骨科相关的临床研究。
  • 基金资助:

    国家自然科学基金面上项目(81171739)

Effect of percutaneous kyphoplasty bone cement injection on biomechanics of adjacent lumbar spine in animal models with osteoporosis

Aimaijiang Kuerban1, Fan Shun-wu2, Liu Chao2, Wang Yin-kui1, Shen Hong-da1   

  1. 1Department of Spinal Burn Surgery, the First Division Hospital of Akesu City Corps, Akesu 843000, Xinjiang Uygur Antonomous Region, China; 2Department of Orthopedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, Hangzhou 310016, Zhejiang Province, China
  • Received:2015-09-08 Online:2015-10-22 Published:2015-10-22
  • Contact: Aimaijiang Kuerban, Department of Spinal Burn Surgery, the First Division Hospital of Akesu City Corps, Akesu 843000, Xinjiang Uygur Antonomous Region, China
  • About author:Aimaijiang Kuerban, Attending physician, Department of Spinal Burn Surgery, the First Division Hospital of Akesu City Corps, Akesu 843000, Xinjiang Uygur Antonomous Region, China
  • Supported by:

    a grant from the National Natural Science Foundation of China, No.81171739

摘要:

背景:术后邻近椎体继发性骨折是经皮椎体后凸成形骨水泥注入最常见的并发症,研究经皮椎体后凸成形骨水泥注入对骨质疏松邻近腰椎生物力学功能的影响对临床应用具有一定的指导意义。
目的:分析经皮椎体后凸成形骨水泥注入对骨质疏松兔模型邻近腰椎生物力学功能的影响。
方法:切除36只雌性新西兰大白兔双侧卵巢,建立L3椎体骨质疏松骨折模型,造模成功后随机均分为2组,实验组行椎体后凸成形骨水泥注入,对照组行开放复位内固定手术。术后5,10,15个月,检测L2、L4椎体骨密度及最大弯曲与压缩载荷,L3椎体前缘、后缘高度与L2及L4椎体平均高度的比值,L2与L4椎体矢状面Cobb角。
结果与结论:实验组术后不同时间点的骨密度值及最大弯曲与压缩载荷、椎体高度比值均高于术前(P < 0.05),矢状面Cobb角低于术前(P < 0.05);对照组术后不同时间点的骨密度值、最大弯曲与压缩载荷均高于术前   (P < 0.05),椎体高度比值及矢状面Cobb角与术前比较无差异;实验组术后不同时间点的骨密度值及最大弯曲与压缩载荷、椎体高度比值均高于对照组(P < 0.05),矢状面Cobb角低于对照组(P < 0.05)。表明椎体后凸成形骨水泥注入可改善骨质疏松骨折邻近椎体的骨密度、承载能力及后凸角度。
中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

关键词: 骨科植入物, 脊柱植入物, 生物材料, 骨水泥, 经皮椎体后凸成形, 椎体骨折, 开放复位内固定, 实验动物, 生物力学, 国家自然科学基金

Abstract:

BACKGROUND: Adjacent vertebral secondary fracture after operation is the most common complication of percutaneous kyphoplasty bone cement injection. Studying the effects of percutaneous kyphoplasty bone cement injection on biomechanical function of adjacent lumbar spine in animal model with osteoporosis will have some guiding significance for clinical practice.
OBJECTIVE: To investigate the effects of percutaneous kyphoplasty bone cement injection on biomechanical function of adjacent lumbar spine in rabbit models with osteoporosis.
METHODS: Thirty-six New Zealand female white rabbits were ovariectomized to establish L3 vertebral osteoporotic fracture model, and then randomly and evenly divided into control group (treated with open reduction and internal fixation operation) and experimental group (treated with percutaneous kyphoplasty bone cement 
injection). At the 5th, 10th and 15th months after operation, L2, L4 bone mineral density, L2, L4 maximum bending and compressive load, the ratio of anterior and posterior heights of L3 vertebrae to average height of L2 and L4 vertebrae, and the sagittal Cobb angle of L2 and L4 vertebrae were detected.
RESULTS AND CONCLUSION: The bone mineral density, maximum bending and compressive load, vertebral height ratio at different time points after operation in experimental group were higher compared with the preoperative level (P <  0.05). The sagittal Cobb angle in experimental group was smaller compared with the preoperative level (P < 0.05). In the control group, the bone mineral density, maximum bending and compressive load at different time points after operation were all higher compared with preoperative level (P < 0.05). There were no significant difference of the vertebral height ratio and sagittal Cobb angle compared with the preoperative level. The bone mineral density, maximum bending and compressive load, vertebral height ratio at different time points after operation in experimental group were higher compared with the control group (P < 0.05). The sagittal Cobb angle was smaller compared with the control group (P < 0.05). These results demonstrate that percutaneous kyphoplasty bone cement injection can better improve the bone density, carrying capacity and kyphosis of osteoporosis fractures adjacent vertebrae.
中国组织工程研究杂志出版内容重点:人工关节;骨植入物;脊柱骨折;内固定;数字化骨科;组织工程

Key words: Osteoporotic Fractures, Vertebroplasty, Biomechanics, Tissue Engineering