一种新型经皮椎弓根置钉导丝的安全性和有效性
发布时间：2018-10-04 22:07
【摘要】：目的尸体标本实验中比较新型导丝和传统导丝的生物力学特征,并通过临床实验分析新型导丝的安全性和有效性。方法通过尸体标本比较新型导丝和传统导丝从腰1椎体至腰5椎体的平均推力和需要穿透椎体前壁的力量。结果对新型导丝的推力导致导丝尖端螺旋部分在椎体内弯曲或散开,从而阻止导丝向椎体前方移动,新型导丝和传统导丝平均的推力分别为(15.5±1.9)和(5.7±0.8)牛顿(P0.001),新型导丝和传统导丝穿破椎体前壁的平均推力分别为(69.1±4.2)和(37.1±4.8)牛顿,(P0.000 5),在使用的222根新型导丝的临床实践中无导丝穿破椎体前壁的现象。结论新型导丝在椎体内的平均推力和需要穿透椎体前壁的力量为传统导丝的2~3倍,新型导丝可有效阻止导丝在椎体内向前方移动并防止导丝穿透椎体前壁,新型导丝可有效提高合并骨质疏松患者接受经皮置钉手术的安全性。
[Abstract]:Objective to compare the biomechanical characteristics of new wire and traditional wire in cadaveric specimens, and to analyze the safety and effectiveness of new wire. Methods the average thrust of the new type of guide wire and the traditional guide wire from the lumbar vertebra to the lumbar 5 vertebrae and the force needed to penetrate the anterior wall of the vertebral body were compared with the cadaveric specimens. Results the thrust of the new guide wire caused the helical part of the tip of the guide wire to bend or disperse in the vertebral body, thus preventing the guide wire from moving to the front of the vertebral body. The average thrust of the new guide wire and the traditional guide wire were (15.5 卤1.9) and (5.7 卤0.8) Newton (P0.001), respectively. The average thrust of the new guide wire and the traditional guide wire through the anterior wall of the vertebral body was (69.1 卤4.2) and (37.1 卤4.8) Newton, respectively (P0.0005). The phenomenon of a wire piercing the anterior wall of the vertebral body. Conclusion the average thrust of the new guide wire in the vertebral body and the force needed to penetrate the anterior wall of the vertebral body are 2 or 3 times that of the traditional guide wire. The new type of guide wire can effectively prevent the guide wire from moving forward in the vertebral body and prevent the guide wire from penetrating the anterior wall of the vertebral body. New wire guide can effectively improve the safety of percutaneous nail placement in patients with osteoporosis.
【作者单位】： 沈阳军区总医院骨科脊椎病区;
【分类号】：R687.3
，
本文编号：2252057
[Abstract]:Objective to compare the biomechanical characteristics of new wire and traditional wire in cadaveric specimens, and to analyze the safety and effectiveness of new wire. Methods the average thrust of the new type of guide wire and the traditional guide wire from the lumbar vertebra to the lumbar 5 vertebrae and the force needed to penetrate the anterior wall of the vertebral body were compared with the cadaveric specimens. Results the thrust of the new guide wire caused the helical part of the tip of the guide wire to bend or disperse in the vertebral body, thus preventing the guide wire from moving to the front of the vertebral body. The average thrust of the new guide wire and the traditional guide wire were (15.5 卤1.9) and (5.7 卤0.8) Newton (P0.001), respectively. The average thrust of the new guide wire and the traditional guide wire through the anterior wall of the vertebral body was (69.1 卤4.2) and (37.1 卤4.8) Newton, respectively (P0.0005). The phenomenon of a wire piercing the anterior wall of the vertebral body. Conclusion the average thrust of the new guide wire in the vertebral body and the force needed to penetrate the anterior wall of the vertebral body are 2 or 3 times that of the traditional guide wire. The new type of guide wire can effectively prevent the guide wire from moving forward in the vertebral body and prevent the guide wire from penetrating the anterior wall of the vertebral body. New wire guide can effectively improve the safety of percutaneous nail placement in patients with osteoporosis.
【作者单位】： 沈阳军区总医院骨科脊椎病区;
【分类号】：R687.3
，
本文编号：2252057
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