Bergmann G, Graichen F, Siraky J, Jendrzynski H, Rohlmann A
Free University of Berlin, Department of Orthopaedics, West Germany.
J Biomech. 1988;21(2):169-76. doi: 10.1016/0021-9290(88)90009-7.
In vivo measurements of the loads and deformations occurring in orthopaedic implants will allow future improvements to be made. This paper describes an extremely small telemetry for long term measurements with three strain gauges and methods for an absolutely safe implant design. Developed for measuring the load at hip prostheses, the telemetry can also be used for other implants. Its size makes feasible instrumentation of devices with only slight mechanical modifications. In addition to the description of our own measuring system, the paper gives a survey on the problems of telemetrized implants, on methods for measuring spatial loads, and on the investigations of other authors. Future publications will present in vivo measurements with this telemetry, among others on hip endoprostheses.
对骨科植入物中出现的载荷和变形进行体内测量将有助于未来的改进。本文介绍了一种用于长期测量的极小的遥测系统，该系统带有三个应变片，还介绍了绝对安全的植入物设计方法。该遥测系统专为测量髋关节假体的载荷而开发，也可用于其他植入物。其尺寸使得只需进行轻微的机械修改就能对设备进行仪器安装。除了描述我们自己的测量系统外，本文还综述了遥测植入物的问题、测量空间载荷的方法以及其他作者的研究。未来的出版物将展示使用该遥测系统进行的体内测量，其中包括对髋关节假体的测量。
