【摘 要】
：
目的:探讨薄形钢板单皮质固定长骨粉碎性骨折所形成的游离大骨片,为临床应用提供理论依据.方法:采用48根长短、粗细相近的新鲜成人尸体胫骨标本,均制作成具有游离大骨片的中
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目的:探讨薄形钢板单皮质固定长骨粉碎性骨折所形成的游离大骨片,为临床应用提供理论依据.方法:采用48根长短、粗细相近的新鲜成人尸体胫骨标本,均制作成具有游离大骨片的中段长斜形粉碎性骨折模型,并用重建钢板于胫骨张力侧固定胫骨主干,再随机均分为A、B、C 3组,游离大骨片分别用双股细钢丝环形捆扎固定(A组)、1枚拉力螺钉固定(B组)、薄形钢板单皮质固定(C组).将标本固定于MTS试验机上,测试并比较3组标本的轴向抗压刚度、抗弯刚度和抗扭刚度.结果:C组的抗弯刚度、抗扭刚度和轴向抗压刚度均强于A组和B组(P＜0.05).结论:薄形钢板单皮质固定长骨粉碎性骨折所形成的游离大骨片,效果可靠.
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