作者使用10具新鲜颈椎C2~C7标本,直接对比颈椎侧块螺钉与经关节螺钉的 拔出强度 ( pullout strength ),随机在颈椎一侧,分别对C3/4、C5/6、和C7/T1用经关节螺钉固定,以侧块中心点内侧1mm为进钉点,进钉角度为向尾侧倾斜40°,向侧...
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BMD of bone will directly affect the intensity (measured by pullout strength) of screw.
3、骨密度的大小直接影响螺钉内固定的强度(以拔出力的大小衡量)。
参考来源 - 椎弓根螺钉于骨矿量下降椎体中应用的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
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?
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。
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。
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