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In vitro fatigue behaviour of a cemented acetabular reconstruction

机译:骨水泥髋臼重建的体外疲劳行为

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In this study, a hemi-pelvis of composite sawbone was implanted with a Charnley cup using a conventional bone cement and the acetabular replacement was tested under constant amplitude cyclic loads, simulating the maximum hip contact force during normal walking. The damage development in the reconstruction was detected and monitored using CT scanning at regular test intervals, verified by microscopy post testing. Three identical experimental results showed that extensive debonding at the bone-cement interface occurred around the dome region after 20 million cycles. (c) 2005 Elsevier Ltd. All rights reserved.
机译:在这项研究中,使用常规的骨水泥将复合锯骨的半骨盆植入Charnley杯中,并在恒定振幅的循环载荷下测试髋臼置换,模拟正常行走过程中的最大髋部接触力。使用CT扫描定期检查间隔,检测并监测重建过程中的损伤发展情况,并通过显微镜后检查进行验证。三个相同的实验结果表明,在2000万次循环后,在圆顶区域周围的骨水泥界面处发生了广泛的剥离。 (c)2005 Elsevier Ltd.保留所有权利。

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