Micromotion and Push-Out Evaluation of an Additive Manufactured Implant for Above-the-Knee Amputees
Micromotion and Push-Out Evaluation of an Additive Manufactured Implant for Above-the-Knee Amputees
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DOI：
10.1002/jor.24389
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发表时间：
2019-10-01
影响因子：
2.8
通讯作者：
Jeffers, Jonathan R. T.
中科院分区：
文献类型：
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作者：
Barnes, Spencer C.;Clasper, Jon C.;Jeffers, Jonathan R. T.
与经膝截肢者相比，膝上截肢者的结局相对较差;基于此，开发了新技术。目前大多数用于经股截肢者的基于经皮植入物的解决方案使用高刚度髓内杆进行骨骼固定，这可能具有包括感染、股骨骨折和由于应力遮挡引起的骨吸收的风险。这项工作详细介绍了使用增材制造生产的短皮质骨刚度匹配皮下植入物的尸体测试，以确定骨植入物微动和推出载荷。微动的结果都是
In comparison to through-knee amputees the outcomes for above-the-knee amputees are relatively poor; based on this novel techniques have been developed. Most current percutaneous implant-based solutions for transfemoral amputees make use of high stiffness intramedullary rods for skeletal fixation, which can have risks including infection, femoral fractures, and bone resorption due to stress shielding. This work details the cadaveric testing of a short, cortical bone stiffness-matched subcutaneous implant, produced using additive manufacture, to determine bone implant micromotion and push-out load. The results for the micromotions were all