Affatato Saverio
Laboratorio di Tecnologia Medica, Istituto Ortopedico Rizzoli, Bologna, Italy.
Artif Organs. 2016 Feb;40(2):195-201. doi: 10.1111/aor.12508. Epub 2015 Jul 6.
The problems associated with prosthetic failure and revision surgery still constitute the main clinical problem of prosthetic surgery. The objective of wear evaluation is to determine the wear rate and its dependence on the test conditions. To obtain realistic results, a wear test can be performed to reproduce in vivo working conditions and compare the wear characteristics of various total knee prostheses designs. At the state of the art, two simulation concepts are available and defined in ISO 14243 standards series. In both these guidelines, level walking is the sole activity of daily living that is represented for testing. With so many variables and so many sources of error and the sensitivity of the output to these errors, can the motion determined in the simulator be representative of the in vivo motion? This article goes beyond the current status of these knee simulations comparing literature results.
与假体失败和翻修手术相关的问题仍然是假体手术的主要临床问题。磨损评估的目的是确定磨损率及其对测试条件的依赖性。为了获得实际结果，可以进行磨损测试以重现体内工作条件，并比较各种全膝关节假体设计的磨损特性。在当前技术水平下，ISO 14243标准系列中定义了两种模拟概念。在这两个指南中，平地行走是唯一用于测试的日常生活活动。由于存在如此多的变量、如此多的误差来源以及输出对这些误差的敏感性，模拟器中确定的运动能否代表体内运动？本文超越了这些膝关节模拟的现状，比较了文献结果。
