A geometric assessment method for estimating dimensional change of retrieved dual mobility liners for total hip arthroplasty.
A geometric assessment method for estimating dimensional change of retrieved dual mobility liners for total hip arthroplasty.
复制标题
DOI：
10.1177/09544119231176112
复制
发表时间：
2023-06
期刊：
影响因子：
--
通讯作者：
中科院分区：
文献类型：
--
作者：
尽管其用途正在兴起，但目前对双动（DM）全髋关节置换（THR）的体内功能机制的理解很差，目前的表征方法不适合这些类型器械的独特功能和设计。因此，本研究的目的是开发一种几何表征方法，以估计回收DM聚乙烯内衬关节面的尺寸变化，从而更好地了解其体内功能。该方法涉及从DM内衬的内表面和外表面获取三维坐标数据。使用定制的MATLAB脚本处理数据，该脚本近似每个表面的未磨损参考几何形状，计算每个点的几何方差并生成表面偏差热图，以便可以在整个植入物上可视化磨损和/或变形区域。评估了1件生产时的DM内衬和5件回收的DM内衬，证明了所开发方法的有效性、可重复性和灵敏度。本研究描述了一种用于评估从任何制造商回收的任何尺寸的DM内衬的自动化和非破坏性方法，该方法可用于未来的研究，以提高我们对其体内功能和失效机制的理解。
Despite their emerging use, the current understanding of the in-vivo functional mechanisms of Dual Mobility (DM) Total Hip Replacements (THRs) is poor, and current characterisation methodologies are not suitable for the unique function and design of these types of devices. Therefore, the aim of this study was to develop a geometric characterisation methodology to estimate dimensional change across the articulating surfaces of retrieved DM polyethylene liners so that their invivo function may be better understood. The method involves the acquisition of three-dimensional coordinate data from the internal and external surfaces of DM liners. The data is processed using a bespoke MATLAB script which approximates the unworn reference geometry of each surface, calculates geometric variance at each point and produces surface deviation heatmaps so that areas of wear and/or deformation may be visualised across the implant. One as-manufactured and five retrieved DM liners were assessed, which demonstrated the efficacy, repeatability and sensitivity of the developed method. This study describes an automated and non-destructive approach for assessing retrieved DM liners of any size and from any manufacturer, which may be used in future research to improve our understanding of their in-vivo function and failure mechanisms.
登录
查看更多内容
影响因子：
4.2
作者：
Pang, Hee-Nee;Naudie, Douglas D. R.;Teeter, Matthew G.
通讯作者：
Teeter, Matthew G.
影响因子：
--
作者：
Mudrick CA;Melvin JS;Springer BD
通讯作者：
Springer BD
影响因子：
5
作者：
Geringer, J.;Boyer, B.;Farizon, F.
通讯作者：
Farizon, F.
影响因子：
2.3
作者：
Adam, P.;Farizon, F.;Fessy, M. -H.
通讯作者：
Fessy, M. -H.
DOI：
10.1002/jbm.b.30318
发表时间：
2005-10-01
影响因子：
3.4
作者：
Bowden, AE;Kurtz, SM;Edidin, AA
通讯作者：
Edidin, AA