Quantitative analysis of misplaced pedicle screws in the thoracic spine: how much pullout strength is lost?
位置不良胸椎椎弓根螺钉拔出力量化研究：究竟损失了多少？
Object: The object of this study was to investigate the effects of iatrogenic pedicle perforations from screw misplacement on the mean pullout strength of thoracic pedicle screws.
目的：本研究目的是调查置钉位置不当引起医源性椎弓根壁穿破对胸椎椎弓根螺钉平均拔出力的影响。
Objective: To compare the initial stability and pullout strength of threaded and non threaded cervical interbody fusion devices on human specimens by biomechanical method.
目的：用生物力学的方法比较螺旋式与环式椎体融合器的初始稳定性和拔出力量。
Based on pullout tests of 48 specimens, interfacial bond strength between CFRP strand anchors and different bonding agents was systematically studied.
在此基础上，通过48个试件的拉拔试验，在国内首次对碳纤维塑料筋锚杆与多种粘结介质之间的界面粘结强度进行了研究。
Summary of Background Data. Pullout strength of a pedicle screw increases as the diameter of the screw gets larger.
背景资料概要：当椎弓根螺钉直径增加椎弓根螺钉的拔出力也会增加。
The method of ultrasonic and pullout test can get higher precision for measuring concrete compressive strength.
超声拉拔综合法用于检测砼的强度，可以提高测试精度。
The method of ultrasonic and pullout test can get higher precision for measuring concrete compressive strength.
超声拉拔综合法用于检测砼的强度，可以提高测试精度。
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