一種新型經皮椎弓根置釘導絲的安全性和有效性
發(fā)布時間：2018-10-04 22:07
【摘要】：目的尸體標本實驗中比較新型導絲和傳統(tǒng)導絲的生物力學特征,并通過臨床實驗分析新型導絲的安全性和有效性。方法通過尸體標本比較新型導絲和傳統(tǒng)導絲從腰1椎體至腰5椎體的平均推力和需要穿透椎體前壁的力量。結果對新型導絲的推力導致導絲尖端螺旋部分在椎體內彎曲或散開,從而阻止導絲向椎體前方移動,新型導絲和傳統(tǒng)導絲平均的推力分別為(15.5±1.9)和(5.7±0.8)牛頓(P0.001),新型導絲和傳統(tǒng)導絲穿破椎體前壁的平均推力分別為(69.1±4.2)和(37.1±4.8)牛頓,(P0.000 5),在使用的222根新型導絲的臨床實踐中無導絲穿破椎體前壁的現(xiàn)象。結論新型導絲在椎體內的平均推力和需要穿透椎體前壁的力量為傳統(tǒng)導絲的2~3倍,新型導絲可有效阻止導絲在椎體內向前方移動并防止導絲穿透椎體前壁,新型導絲可有效提高合并骨質疏松患者接受經皮置釘手術的安全性。
[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 鹵1.9) and (5.7 鹵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 鹵4.2) and (37.1 鹵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.
【作者單位】： 沈陽軍區(qū)總醫(yī)院骨科脊椎病區(qū);
【分類號】：R687.3
，
本文編號：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 鹵1.9) and (5.7 鹵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 鹵4.2) and (37.1 鹵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.
【作者單位】： 沈陽軍區(qū)總醫(yī)院骨科脊椎病區(qū);
【分類號】：R687.3
，
本文編號：2252057
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