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[1]孙军战,王光辉,吴成如,等.空心螺钉治疗锁骨骨折的生物力学研究[J].医学研究与战创伤救治(原医学研究生学报),2014,16(05):482-484.[doi:10.3969/j.issn.1672-271X.2014.05.011]
　SUN Jun-zhan,WANG Guang-hui,WU Cheng-ru,et al.Biomechanical study on clavicular fracture for cannulated screw[J].JOURNAL OF MEDICALRESEARCH —COMBAT TRAUMA CARE,2014,16(05):482-484.[doi:10.3969/j.issn.1672-271X.2014.05.011]
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空心螺钉治疗锁骨骨折的生物力学研究()
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《医学研究与战创伤救治》（原医学研究生学报）[ISSN:1672-271X/CN:32-1713/R]

卷:
第16卷
期数:
2014年05期
页码:
482-484
栏目:
出版日期:
2014-09-20

文章信息/Info

Title:
Biomechanical study on clavicular fracture for cannulated screw
作者:
孙军战; 王光辉; 吴成如; 高升
230031安徽合肥，解放军105医院骨科
Author(s):
SUN Jun-zhan; WANG Guang-hui; WU Cheng-ru; GAO Sheng.
Department of Orthopaedics，105 Hospital of PLA,Hefei，Anhui 230031,China
关键词:
锁骨骨折; 空心螺钉; 生物力学
Keywords:
clavicle fracture;  cannulated screw;  biomechanical
分类号:
R683.41
DOI:
10.3969/j.issn.1672-271X.2014.05.011
文献标志码:
A
摘要:
目的检测直径6.5 mm空心螺钉固定锁骨骨折的生物力学性能，并与钢板螺钉内固定方法进行比较，为临床应用提供依据。方法 采集10个成人锁骨标本，行中外1／3处锁骨 横形骨折模型，随机分二组，分别采用空心螺钉和钢板螺钉内固定，测试各组的三点弯曲应变及轴向挤压效应。结果 轴向挤压实验：载荷1571 N时，钢板固定组螺钉发生松动，在 载荷2470.13 N时钢板固定失败，而锁骨空心螺钉固定失败载荷为3034.99 N，两者相差明显。三点弯曲实验：无论钢板组的正向(270.29~254.38 N)或负向加压负荷(425.85~443.76 N)结果均远远小于空心螺钉组(1017.16~1103.39 N)。结论 直径6.5 mm空心螺钉治疗锁骨骨折从生物力学上来看，在抗轴向负荷及三点弯曲负荷上均优于目前常规使用的钢板螺钉 。
Abstract:
0bjectiveTo evaluate the biomechanical characteristies of cannulated screw with 6.5 mm diameter for treatment of clavicular fracture and compare the effect with steel plate internal fixation．Methods Ten adult clavicles were prepared models for the middle and lateral fractures and divided into two groups randomly．Two groups were fixed with cannulated screw and steel plate．The biomechanieal test was performed and the stress was analyzed.Results Axial compression test：In the load 1571.18 N，steel plate fixation group screw loose.In the load 2470.13 N,the fixation was failure.And fixation group with 6.5 mm diameter cannulated screw was failure in the load of 3034.99 N.There was significantly different between two groups.Three point bending test:Either forward or reverse pressure load Results in steel group(270.29-254.38 N;425.85-443.76 N) were far less than the cannulated screw group(1017.16-1103.39 N).Conclusion Biomechanical study on clavicular fracture for 6.5 mm diameter cannulated screw shows: Either on the axial load and three point bending load in cannulated screw is superior to steel plate．

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更新日期/Last Update: 2014-09-20