Taper junction failure in large-diameter metal-on-metal bearings.
Taper junction failure in large-diameter metal-on-metal bearings.
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DOI：
10.1302/2046-3758.14.2000047
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发表时间：
2012-04
影响因子：
4.6
通讯作者：
Joyce TJ
中科院分区：
文献类型：
--
作者：
Langton DJ;Sidaginamale R;Lord JK;Nargol AV;Joyce TJ
2008年，我们中心开始了一项正在进行的前瞻性研究，以调查失败的金属对金属髋关节假体。我们报告的结果分析的第一个连续126个失败的配对全髋关节假体从一个单一的制造商。使用高精度坐标测量进行分析，以计算关节面和锥形连接表面的体积和线性速率。研究了锥体磨损率与许多变量之间的关系，包括关节面直径和髋臼部件的方向。测量的磨损率和锥体表面材料损失分布似乎表明，导致锥体失效的主要因素是当代大直径金属对金属髋关节置换术中作用于该接合处的杠杆臂增加。我们的分析表明，内翻股骨柄、侧向接合锥系统和较大的股骨头直径都有助于锥失效。
An ongoing prospective study to investigate failing metal-on-metal hip prostheses was commenced at our centre in 2008. We report on the results of the analysis of the first consecutive 126 failed mated total hip prostheses from a single manufacturer. Analysis was carried out using highly accurate coordinate measuring to calculate volumetric and linear rates of the articular bearing surfaces and also the surfaces of the taper junctions. The relationship between taper wear rates and a number of variables, including bearing diameter and orientation of the acetabular component, was investigated. The measured rates of wear and distribution of material loss from the taper surfaces appeared to show that the primary factor leading to taper failure is the increased lever arm acting on this junction in contemporary large-diameter metal-on-metal hip replacements. Our analysis suggests that varus stems, laterally engaging taper systems and larger head diameters all contribute to taper failure.
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DOI：
10.1302/0301-620x.90b7.20213
发表时间：
2008-07-01
影响因子：
--
作者：
Pandit, H.;Glyn-Jones, S.;Murray, D. W.
通讯作者：
Murray, D. W.
影响因子：
5
作者：
Lord, J. K.;Langton, D. J.;Joyce, T. J.
通讯作者：
Joyce, T. J.
DOI：
10.1302/0301-620x.93b12.27533
发表时间：
2011-12-01
影响因子：
--
作者：
Malviya, A.;Ramaskandhan, J. R.;Holland, J. P.
通讯作者：
Holland, J. P.
影响因子：
3.5
作者：
Malviya, Ajay;Lingard, Elizabeth A.;Holland, James P.
通讯作者：
Holland, James P.
影响因子：
3.5
作者：
Randelli, Filippo;Banci, Lorenzo;Randelli, Gianni
通讯作者：
Randelli, Gianni