山东医药2011，Vol.51Issue(44)：25-26,2.
三叉形股骨膨胀式空心加压螺钉强化股骨颈骨折扭转刚度的研究
Research of torsional stiffness strengthened by trigeminal form expansion hollow compression screw on femoral neck fracture
摘要
Abstract
bstract: Objective To evaluate the effect of the torsional stiffness by trigeminal form expansion hollow compression screw on femoral neck fracture. Methods A total of 12 fresh porcine femur specimens were selected to make the standard model of femoral neck fracture, and divided randomly into control and experimental groups. The control group was fixed by AO cannulated screw, and the experimental group was fixed by trigeminal form expansion hollow compression screw. The torsional stiffness of each group at 2 Nm moments by transfer mechanical testing machine was determined. Results The torsional stiffness of experimental group and control group at 2 Nm moments was (0.62 ±0.05) and (0.51 ±0.09) Nm/ degree, respectively. The torsional stiffness of experimental group was significantly higher than that of control group ( P < 0.05). Conclusion Femoral neck fracture fixed by trigeminal form expansion hollow compression screw can strengthen the torsional stiffness.关键词
股骨颈骨折/三叉形股骨膨胀式空心加压螺钉/扭转刚度Key words
femoral neck fracture/trigeminal form expansion hollow compression screw/torsional stiffness分类
医药卫生引用本文复制引用
尹一然,陈歌,鲁晓波,徐杨博,叶里子..三叉形股骨膨胀式空心加压螺钉强化股骨颈骨折扭转刚度的研究[J].山东医药,2011,51(44):25-26,2.基金项目
四川省实验课题基金资助项目(080179). （080179）
