[1]李超艺,刘立柱,吴国志,等.新型结构起子杆及反螺纹取出螺钉的力学性能测试[J].郑州大学学报(医学版),2019,(04):567-570.[doi:10.13705/j.issn.1671-6825.2018.07.100]
 LI Chaoyi,LIU Lizhu,WU Guozhi,et al.Study on mechanical properties of new structural screwdriver rod and reverse thread removal screw[J].JOURNAL OF ZHENGZHOU UNIVERSITY(MEDICAL SCIENCES),2019,(04):567-570.[doi:10.13705/j.issn.1671-6825.2018.07.100]
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新型结构起子杆及反螺纹取出螺钉的力学性能测试()
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《郑州大学学报(医学版)》[ISSN:1671-6825/CN:41-1340/R]

卷:
期数:
2019年04期
页码:
567-570
栏目:
应用研究
出版日期:
2019-07-20

文章信息/Info

Title:
Study on mechanical properties of new structural screwdriver rod and reverse thread removal screw
作者:
李超艺刘立柱吴国志张 伟宋世锋
海南医学院第二附属医院骨科二区 海口 570311
Author(s):
LI Chaoyi LIU Lizhu WU Guozhi ZHANG Wei SONG Shifeng
Second Ward of Department of Orthopedics, the Second Affiliated Hospital, Hainan Medical University, Haikou 570311
关键词:
螺钉 起子杆 生物力学
Keywords:
screw screwdriver rod biomechanics
分类号:
R683.4
DOI:
10.13705/j.issn.1671-6825.2018.07.100
摘要:
目的:研究新型结构起子杆及反螺纹取出螺钉的力学性能。方法:采集12具成人新鲜尸骨股骨标本,随机分为实验组与对照组,各6个。实验组使用反螺纹取出螺钉,对照组使用自攻型锁定螺钉,模拟股骨颈加压螺丝钉单钉固定,比较两组压缩载荷-位移。置钉时,实验组使用SW 3.0起子杆拧入反螺纹取出螺钉,对照组使用SW 3.5起子杆拧入自攻型锁定螺钉; 取钉时,实验组使用新型结构起子杆取出螺钉,对照组使用SW 3.5起子杆取出螺钉,比较两组最大扭矩、最大扭角及功耗。实验组应用反螺纹取出螺钉,对照组应用常规自攻型锁定螺钉,进行扭转性能测试,比较两组置钉与取钉的失效扭力。结果:实验组在0.1、0.2、0.3、0.4、0.5、0.6 kN载荷条件下位移与对照组比较,差异无统计学意义(P=0.570)。实验组最大扭矩、功耗高于对照组,最大扭角小于对照组(P<0.001)。实验组置钉与取钉的失效扭力均低于对照组(P<0.001)。结论:新型结构起子杆与反螺纹取出螺钉结构设计合理,起动螺钉幅度小,能够实现高功耗地断钉、弯钉和打滑螺钉,具有较高实用性。
Abstract:
Aim:To study the mechanical properties of new structural screwdriver rod and reverse thread for removing the screw.Methods:A total of 12 adult fresh bone femur specimens were collected. Twelve specimens were randomly divided into experimental group and control group, with 6 cases in each group. In the experimental group, the reverse thread removal screw, and the control group used the self-tapping type locking screw to simulate the femoral neck compression screw for single screw. The data of compression load-displacement was compared between the two groups. When nailing, the experimental group used the SW 3.0 screwdriver rod to screw in the reverse thread removal screw, and the control group used the SW 3.5 screwdriver rod to screw in the self-tapping locking screw; when removing the nail, the experimental group used the new structural screwdriver rod,and the control group used the SW 3.5 screwdriver rod. The maximum torque, torsion angle and power consumption were compared between the two groups. The reverse thread removal screw and conventional self-tapping locking screw were taken into the experimental group and the control group respectively, and the torsion performance test was performed to compare the failure torque of the two sets of nails.Results:There was no significant difference in the displacement between the experimental group and the control group under the loading conditions of 0.1, 0.2, 0.3, 0.4, 0.5 and 0.6 kN(P=0.570). The maximum torque and power consumption of the experimental group were significantly higher than those of the control group, and the maximum torsion angle was significantly smaller than that of the control group(P<0.001). The failure torque of screw implantation and screw removal in the experimental group were significantly lower than those in the control group(P<0.001).Conclusion:The structural design of the new structural screwdriver rod and the reverse thread removal screw is reasonable. The amplitude of removing the screw is small and easy. They could realize high-power nail breaking, bent nails and sliding screws, with high practicability.

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备注/Memo

备注/Memo:
【基金项目】海南省自然科学基金资助项目(819MS126)
【作者简介】刘立柱,通信作者,男,1978年10月生,硕士,副主任医师,研究方向:关节外科、创伤骨科,E-mail:lblo827szuzw5@163.com
更新日期/Last Update: 2019-07-20