BIOMECHANICS STUDY ON THREE-DIMENSIONAL EXTERNAL FIXATOR FOR OSTEOPOROTIC FRACTURE_Chinese Journal of Reparative and Reconstructive Surgery

Authors：

LIUZongchao ¹ , TIANZegao ² , JIANGYan ² , WANGZhenlong ¹ , LIUYong ¹ ,  LUXiaobo ²

1. Department of Orthopedics, Chinese Medicine Hospital Affiliated to Luzhou Medical College, Luzhou Sichuan, 646000, P. R. China;
2. Department of Orthopedics, the Affiliated Hospital of Luzhou Medical College;

Corresponding author：

LUXiaobo, Email: luxiaobo1963@126.com

Keywords：

Three-dimensional external fixator; Osteoporotic fracture; Biomechanics

DOI：

10.7507/1002-1892.20150031

Video：

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Objective To explore the mechanical stability of the three-dimensional (3-D) external fixator for osteoporotic fracture so as to provide the biomechanical basis for clinical application. Methods Forty-five fresh frozen adult tibial specimens were selected to rapidly prepare the extracorporal tibia osteoporotic fracture models, and were randomly divided into 3 groups (n=15). Fractures were fixed with 3-D external fixators (3-D external fixators group), intramedullary nails (intramedullary nail group), and plate (plate group) respectively. Five specimens randomly from each group were used to do axial compression test, three-point bending test, and torsion test with microcomputer control electronic universal testing machine, then the mechanical parameters were calculated. Results In the axial compression test, the displacement of 3-D external fixator group and intramedullary nail group were shorter than plate group, showing significant differences (P<0.05); but no significant difference was found between 3-D external fixator group and intramedullary nail group (P>0.05). In the three-point bending test and torsion test, the deflection and the torsional angle of 3-D external fixator group and intramedullary nail group were smaller than plate group, showing significant differences (P<0.05); but no significant difference was found between 3-D external fixator group and intramedullary nail group (P>0.05). Conclusion The 3-D external fixator can fix fracture three-dimensionally from multiple plane and it can offer strong fixing. It is biomechanically demonstrated to be suitable for osteoporotic fracture.

Citation： LIUZongchao, TIANZegao, JIANGYan, WANGZhenlong, LIUYong, LUXiaobo. BIOMECHANICS STUDY ON THREE-DIMENSIONAL EXTERNAL FIXATOR FOR OSTEOPOROTIC FRACTURE. Chinese Journal of Reparative and Reconstructive Surgery, 2015, 29(2): 145-148. doi: 10.7507/1002-1892.20150031 Copy

1.	郝光亮, 郝永强, 晏焕青. 老年髋部骨折的住院治疗费用分析. 中国骨质疏松杂志, 2008, 14(3):200-203.
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3.	尚庆, 刘宗超, 鲁晓波. 快速制备骨质疏松体外模型的实验研究. 中国修复重建外科杂志, 2013, 27(3):326-329.
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7.	罗南萍, 刘恒国, 李金花, 等. 老年男性代谢综合征患者骨密度与骨量、骨代谢物的关系. 中国组织工程研究与临床康复, 2008, 12(7):1247-1250.
8.	刘振东, 范清宇. 应力遮挡效应-寻找丢失的钥匙. 中华创伤骨科杂志, 2002, 4(1):62-64.
9.	赵晓刚, 薛德挺, 潘志军. 骨质疏松性骨折外科治疗. 国际骨科学杂志, 2013, 34(1):1-5.
10.	唐树杰, 房经武, 王志彬. 论中国接骨学"动静结合"理念的先进性. 天津中医药大学学报, 2008, 27(1):43-45.
11.	刘宗超, 蒋燕, 杨家福, 等. 有限内固定结合外固定支架与钢板治疗胫骨平台骨折的疗效分析. 中国矫形外科杂志, 2012, 20(6):505-508.
12.	崔轶, 李军, 郭海, 等. 骨质疏松模型的评价方法研究进展. 中国骨质疏松杂志, 2013, 19(4):416-420.
13.	虞惊涛, 马信龙, 马剑雄. 骨质疏松动物模型评价方法. 中华骨质疏松和骨矿盐疾病杂志, 2013, 7(1):66-70.
14.	唐瑞怡, 陈蓉. 骨质疏松症动物模型研究进展. 中国实用妇科与产科杂志, 2014, 30(5):383-386.

1. 郝光亮, 郝永强, 晏焕青. 老年髋部骨折的住院治疗费用分析. 中国骨质疏松杂志, 2008, 14(3):200-203.
2. 黄公怡. 骨质疏松性骨折的特点及临床与研究进展. 基础医学与临床, 2007, 27(10):1088-1092.
3. 尚庆, 刘宗超, 鲁晓波. 快速制备骨质疏松体外模型的实验研究. 中国修复重建外科杂志, 2013, 27(3):326-329.
4. 张光, 孙晶, 韩邕, 等. 正常人群骨矿物含量的定量CT测量和研究. 中国医学影像技术, 1998, 14(6):402-404.
5. 刘忠厚, 杨定焯, 朱汉民, 等. 中国人骨质疏松症建议诊断标准(第二稿). 中国骨质疏松杂志, 2000, 6(1):1-3.
6. 谭俊峰, 刘洋, 彭昊, 等. 两种不同材料外固定支架固定胫骨骨折的生物力学研究. 生物医学工程与临床, 2013, 17(5):420-424.
7. 罗南萍, 刘恒国, 李金花, 等. 老年男性代谢综合征患者骨密度与骨量、骨代谢物的关系. 中国组织工程研究与临床康复, 2008, 12(7):1247-1250.
8. 刘振东, 范清宇. 应力遮挡效应-寻找丢失的钥匙. 中华创伤骨科杂志, 2002, 4(1):62-64.
9. 赵晓刚, 薛德挺, 潘志军. 骨质疏松性骨折外科治疗. 国际骨科学杂志, 2013, 34(1):1-5.
10. 唐树杰, 房经武, 王志彬. 论中国接骨学"动静结合"理念的先进性. 天津中医药大学学报, 2008, 27(1):43-45.
11. 刘宗超, 蒋燕, 杨家福, 等. 有限内固定结合外固定支架与钢板治疗胫骨平台骨折的疗效分析. 中国矫形外科杂志, 2012, 20(6):505-508.
12. 崔轶, 李军, 郭海, 等. 骨质疏松模型的评价方法研究进展. 中国骨质疏松杂志, 2013, 19(4):416-420.
13. 虞惊涛, 马信龙, 马剑雄. 骨质疏松动物模型评价方法. 中华骨质疏松和骨矿盐疾病杂志, 2013, 7(1):66-70.
14. 唐瑞怡, 陈蓉. 骨质疏松症动物模型研究进展. 中国实用妇科与产科杂志, 2014, 30(5):383-386.

Chinese Journal of Reparative and Reconstructive Surgery

BIOMECHANICS STUDY ON THREE-DIMENSIONAL EXTERNAL FIXATOR FOR OSTEOPOROTIC FRACTURE

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