基于最大拔出力的商用椎弓根螺钉的比较研究

THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019 Pub Date : 2019-12-10 DOI:10.1063/1.5139337

Radhi Maladzi, S. Supriadi

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引用次数: 1

摘要

椎弓根螺钉具有稳定椎体骨运动和抵抗各种载荷(如轴向载荷)的作用。如果椎弓根螺钉不能维持已发生的轴向载荷，则可能发生拔出失败。实验性椎弓根螺钉拔出试验参照美国材料试验学会(ASTM) F543。每个椎弓根螺钉以5mm /min的速度移位，直到椎弓根螺钉从试验块材料中拔出。注意荷载与位移之间的位移曲线图，峰值表示试件的最大拉拔力。本研究的目的是确定椎弓根螺钉所能承受的最大轴向力。商用1号椎弓根螺钉在1497 N时的最大拔出力高于商用2号椎弓根螺钉在469 N时的最大拔出力。椎弓根螺钉具有稳定椎体骨运动和抵抗轴向载荷等各种载荷的作用。如果椎弓根螺钉不能维持已发生的轴向载荷，则可能发生拔出失败。实验性椎弓根螺钉拔出试验参照美国材料试验学会(ASTM) F543。每个椎弓根螺钉以5mm /min的速度移位，直到椎弓根螺钉从试验块材料中拔出。注意荷载与位移之间的位移曲线图，峰值表示试件的最大拉拔力。本研究的目的是确定椎弓根螺钉所能承受的最大轴向力。商用1号椎弓根螺钉1497 N的最大拔出力高于商用2号椎弓根螺钉469 N的最大拔出力。

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Comparative study of commercial pedicle screw based on maximum pull out force

Pedicle screw has a role in stabilizing vertebral bone motion and resisting all types of load such as axially load. If pedicle screw cannot maintain axially load that happened, pull out failure can be occurred. Experimental pedicle screw pull out testing is referring to American Society for Testing and Materials (ASTM) F543. Each pedicle screw displaced at 5 mm/min until pedicle screw pulled from the test block material. Note the displacement graph between load and displacement, and the highest peak means maximum pull out force of the specimen. The purpose of this study to determine the maximum axially force of pedicle screws can bear. Commercial 1 pedicle screw shows higher pull out maximum force with 1497 N than commercial two pedicle screw with 469 N.Pedicle screw has a role in stabilizing vertebral bone motion and resisting all types of load such as axially load. If pedicle screw cannot maintain axially load that happened, pull out failure can be occurred. Experimental pedicle screw pull out testing is referring to American Society for Testing and Materials (ASTM) F543. Each pedicle screw displaced at 5 mm/min until pedicle screw pulled from the test block material. Note the displacement graph between load and displacement, and the highest peak means maximum pull out force of the specimen. The purpose of this study to determine the maximum axially force of pedicle screws can bear. Commercial 1 pedicle screw shows higher pull out maximum force with 1497 N than commercial two pedicle screw with 469 N.

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THE 4TH BIOMEDICAL ENGINEERING’S RECENT PROGRESS IN BIOMATERIALS, DRUGS DEVELOPMENT, HEALTH, AND MEDICAL DEVICES: Proceedings of the International Symposium of Biomedical Engineering (ISBE) 2019

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