Analysis of retrieved alumina ceramic components from Mittelmeier total hip prostheses
Analysis of retrieved alumina ceramic components from Mittelmeier total hip prostheses
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DOI：
10.1016/s0142-9612(99)00081-2
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发表时间：
1999-10-01
期刊：
影响因子：
14
通讯作者：
Nevelos, AB
中科院分区：
文献类型：
--
作者：
Nevelos, JE;Ingham, E;Nevelos, AB
本研究分析了来自一位外科医生的16年Mittelmeier非骨水泥型全髋关节置换术系列的翻修假体。患者组为年轻（患者年龄15-60岁，平均40岁）和活跃。翻修与多种因素有关。使用Kemco 3D坐标测量机测量所有组件。对11个取出的Mittelmeier Autophor陶瓷髋关节部件（平均植入时间8.6年，范围1-13年）的磨损表面和线性磨损渗透进行了分析，并确定了不同类型的磨损。然后使用Talysurf接触轮廓术和扫描电子显微镜进行表面分析。发现3种磨损类型：轻度磨损（1例）、条纹磨损（6例）和重度磨损（4例）。条纹磨损的特征是头部磨损区域的条纹高达150 μ m深，而头部的其余部分显示出非常低的磨损。条纹磨损案例中的髋臼杯磨损了约40-50%的表面。严重磨损病例在股骨头和髋臼杯上都有非常大面积的重度磨损和可见的体积损失。4例严重磨损病例与异常临床病史相关。(C)1999 Elsevier Science Ltd.保留所有权利。
This study analyses explanted prostheses from a single surgeon's 16-yr series of Mittelmeier cementless total hip replacements. The patient group was young (patients aged 15-60, average 40) and active. Revision was related to various factors. All components were measured using a Kemco 3D coordinate measurement machine. Wear surfaces and linear wear penetrations of 11 retrieved Mittelmeier Autophor ceramic hip components (average implantation time 8.6 yr, range 1-13 yr) were analysed and the different types of wear identified. Surface analysis was then performed using Talysurf contacting profilometry and scanning electron microscopy. Three types of wear were identified: low wear (1 case), stripe wear (6 cases) and severe wear (4 cases). Stripe wear was characterised as a stripe of worn area on the head up to 150 mu m deep whilst the rest of the head showed very low wear. The cups in the stripe wear cases were worn over about 40-50% of the surface. Severe wear cases had very large areas of heavy wear and visible volume loss on both heads and cups. The four cases of severe wear were associated with abnormal clinical histories. (C) 1999 Elsevier Science Ltd. All rights reserved.