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Biomechanical research on the improved pedicle screw system to treat vertically unstable pelvic fracture
Author(s): 
Pages: 1639-1641
Year: Issue:  11
Journal: Chinese Journal of Experimental Surgery

Keyword:  Pelvic fractureVertical instabilityPedicle screw systemBiomechanic;
Abstract: 目的 探讨改良钉棒系统治疗垂直不稳定型骨盆骨折,并分析其生物力学性质.方法 在8例尸体骨盆标本上造模成垂直不稳定型骨盆骨折,分别行TOS术式固定、骶髂螺钉固定、改良钉棒系统固定,检测1000 N载荷下骨盆刚度、骨折分离移位距离及局部应变改变.结果 骨盆标本骨折模型采用各种不同固定方式,经生物力学测试,改良钉棒系统在载荷1000 N下刚度(224.3±18.3)N/mm及骨折分离移位距离(1.98±...
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