Very low wear rate measured in a hip endoprosthesis removed after 38 years

G. Maccauro; R. Sgrambiglia; T. Micelli; V. Santis; F. Muratori; C. Piconi

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Very low wear rate measured in a hip endoprosthesis removed after 38 years

机译：38年后摘除的髋关节假体的磨损率极低

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A Marino Zuco hip prosthesis implanted in 1963 in a 13–year–old girl with congenital hip dislocation was revised in 2001 for aseptic loosening. At the time of revision surgery, no granulomatous tissue reaction due to massive wear was observed. Considering the notable 38–year survival of this implant, we measured linear and volumetric wear of the acrylic ball head using a digital method to reconstruct the original spherical surface. Linear wear was 0.817 mm (21.5 μm/year) and volumetric wear was 28.937 mm3/year. These low wear rates are attribuited to the patient’s limited range of motion during the implant’s life time. Low prosthetic use may have contributed to the long implant survival time.

机译：1963年对一名13岁的先天性髋关节脱位的女孩植入了Marino Zuco髋关节假体，并于2001年进行了无菌松动的修订。在翻修手术时，未观察到由于大量磨损引起的肉芽肿组织反应。考虑到这种植入物的显着38年生存期，我们使用数字方法重建了原始的球形表面，测量了丙烯酸球头的线性和体积磨损。线性磨损为0.817毫米（21.5微米/年），体积磨损为28.937立方毫米/年。这些低磨损率归因于患者在植入物生命周期内的有限运动范围。假体使用率低可能有助于延长植入物的存活时间。

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《Journal of orthopaedics and traumatology: official journal of the Italian Society of Orthopaedics and Traumatology》 |2006年第2期|共页
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G. Maccauro; R. Sgrambiglia; T. Micelli; V. Santis; F. Muratori; C. Piconi;
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中图分类骨科学（运动系疾病、矫形外科学）;
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1. Very low wear rate measured in a hip endoprosthesis removed after 38 years [J] . G. Maccauro, R. Sgrambiglia, T. Micelli, Journal of orthopaedics and traumatology: official journal of the Italian Society of Orthopaedics and Traumatology . 2006,第2期

机译：38年后摘除的髋关节假体的磨损率极低
2. High wear rates and extensive osteolysis in 3 types of uncemented total hip arthroplasty: a review of the PCA, the Harris Galante and the Profile/Tri-Lock Plus arthroplasties with a minimum of 12 years median follow-up in 96 hips. [J] . Hallan G, Lie SA, Havelin LI Acta orthopaedica. . 2006,第4期

机译：3种非骨水泥型全髋关节置换术的高磨损率和广泛的骨溶解：对PCA，Harris Galante和Profile / Tri-Lock Plus置换术的回顾，对96例髋关节进行了至少12年的中位随访。
3. High wear rates and extensive osteolysis in 3 types of uncemented total hip arthroplasty: A review of the PCA, the Harris Galante and the Profile/Tri-Lock Plus arthroplasties with a minimum of 12 years median follow-up in 96 hips [J] . Leif I Havelin, Stein A Lie, Geir Hallan Acta orthopaedica. . 2006,第4期

机译：3种非骨水泥型全髋关节置换术的高磨损率和广泛的骨溶解：对PCA，Harris Galante和Profile / Tri-Lock Plus置换术的回顾，对96例髋关节进行了至少12年的中位随访
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机译：师范古代的准确性在线感知工具确定高额和低评级数学和科学新雇用教师的效力，三年单一学区就业
6. Very low wear rate measured in a hip endoprosthesis removed after 38 years [O] . G. Maccauro, R. Sgrambiglia, T. Micelli, 2006

机译：38年后摘除的髋关节假体的磨损率极低
7. : "This paper deals with the functionality of the flaked stone assemblages from several Neolithic sites of the NE of the Iberian Peninsula. The chronological framework ranges from the mid-6th to the mid-4th millennium cal. BCE, which corresponds to the Early and Middle Neolithic. This long period ranges from the arrival of the first farming communities in the Iberian Peninsula, around 5600-5500 cal. BCE, to 3600-3500 cal. BCE, two millennia later, when Neolithic communities had stably occupied most of the available territory, from the mountainous areas of the Pyrenees to the coastal areas of the Mediterranean.In this context, the NE of the Iberian Peninsula is one of the areas where a major number of use-wear analyses have been carried out, especially for what concerns the Neolithic period. This is mainly due to the interest shown by the directors of the excavations and by the Spanish use-wear specialists as well; both participated and cooperated in order to enlarge the number of contexts studied, making the NE of the Iberian Peninsula one of the areas of Europe with the largest number of ‘functional studies’. As a result, today we have a reliable picture of the type of lithic tools used by the first farming groups, how they were used, and which needs they were satisfying.The methodology employed for this type of analysis is today broadly shared by most use-wear specialists. A stereoscopic microscope is used together with a reflected-light microscope for the analysis of the archaeological specimens. Afterwards, the observed use-wear traces are compared with the traces from experimental tools. This study primarily made use of the tools preserved at the ‘Traceoteque’ of the Institución Milà y Fontanals of the CSIC of Barcelona.This paper presents the results obtained for the different types of analysed sites and the relative lithic assemblages. In this way, tools from different contexts are compared: open-air sites, caves and rock-shelters, pit-sites, burials, and mining sites. Such a diversity of contexts allowed for the exploration of the existence of recurrences and differences in the functionality of the lithic tools from one site to another. The results obtained have also provided information on some aspects related to the economic processes carried out at the different sites, caves, rock-shelters and open-air contexts. It has been possible to gain fresh data on the types of tasks carried out and their relative importance for each site, their relation with the geographical and environmental context and the natural resources available there. In addition, analysing tools recovered from burials – mainly individual inhumations – provided information on the relationships between the buried individuals and the working tools, in particular exploring the relationships between sex and age patterns and the types of tools deposited as goods.In conclusion, use-wear analysis allowed for the exploration of a variety of issues; from technical aspects related to the production and management of the lithic resources to social aspects related to the subsistence activities and the individuals that carried them out." [O] . Gibaja Bao, Juan Francisco, Mazzucco, Niccolo 2015

机译：：“本文研究了伊比利亚半岛东北部几个新石器时代遗址的片状石材组合的功能。时间框架从公元前6世纪中叶到4世纪中叶，分别对应于早期和早期。新石器时代中期，这段时间的长短是从伊比利亚半岛的第一个农业社区到来，大约在公元前5600-5500 cal，到了两千年后的3600-3500 BCE，当时新石器时代的社区稳定地占据了大部分可用土地。从比利牛斯山脉山区到地中海沿岸地区。在这种情况下，伊比利亚半岛东北部是进行过大量使用磨损分析的地区之一，尤其是在关注方面新石器时代，这主要是由于发掘负责人和西班牙使用服装专家表现出的浓厚兴趣；他们参与和合作以扩大孔蒂的数量xts进行了研究，使伊比利亚半岛的NE成为“功能研究”数量最多的欧洲地区之一。结果，今天我们可以可靠地了解第一批耕作小组使用的石器工具的类型，使用方法以及它们满足的需求。今天，大多数使用方法广泛共享用于这种类型的分析的方法穿专家。立体显微镜与反射光显微镜一起用于分析考古样本。然后，将观察到的使用磨损痕迹与实验工具的痕迹进行比较。这项研究主要利用了巴塞罗那CSIC的米拉·丰塔纳尔研究所的“ Traceoteque”中保存的工具。本文介绍了针对不同类型的分析地点和相对石器组合所获得的结果。通过这种方式，可以比较来自不同环境的工具：露天场所，洞穴和岩石避难所，露天场所，埋葬场所和采矿场所。如此多样的上下文允许探索重复性的存在以及从一个站点到另一个站点的石器工具的功能差异。所获得的结果还提供了与在不同地点，洞穴，避难所和露天环境中进行的经济过程有关的某些方面的信息。可以获得有关所执行任务的类型及其对每个站点的相对重要性，它们与地理和环境环境以及那里可用自然资源的关系的新数据。此外，对从墓葬中回收的工具（主要是个人遗体）进行分析，可提供有关被掩埋的个体与工作工具之间关系的信息，尤其是探索性别与年龄模式之间的关系以及作为商品存放的工具的类型。磨损分析允许探索各种问题；从与石器资源的生产和管理有关的技术方面到与自给活动及其实施者有关的社会方面。”
8. Framingham Study: An Epidemiological Investigation of Cardiovascular Disease. Section 38; the Relationship between Sporadically Measured Variables and the Risk of Cardiovascular Disease and Death; Framingham Heart Study, 30-34 Year Follow-Up [R] . Kannel, W. B. , Wolf, P. A. , Garrison, R. J. , 1988

机译：Framingham研究：心血管疾病的流行病学调查。第38条;零星测量变量与心血管疾病和死亡风险的关系;弗雷明汉心脏研究，30-34岁随访

Very low wear rate measured in a hip endoprosthesis removed after 38 years

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