骨科植入物损坏的特点及其引发机制

IF 4 2区 工程技术 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY International Journal of Damage Mechanics Pub Date : 2023-11-28 DOI:10.1177/10567895231212329
Adrian Łukaszewicz, M. Kopeć, Grzegorz Szczęsny, Zbigniew L. Kowalewski
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引用次数: 0

摘要

植入物骨折是骨科手术的并发症,需要进行二次手术。然而,人们并不确切知道损伤何时开始,也不知道哪些因素最容易导致损伤。因此,本研究的目的是分析骨科植入物从骨骼中取出后的变化特征。研究人员特别努力确定哪些变化发生在植入物的生产、安装、使用和移除过程中。通过这种识别,可以明确每个阶段出现的病变的作用,以及它们在植入物变形或断裂中的作用。本文的重点是用于稳定股骨骨折的植入物,因为骨头传递的负荷最大。在标准和立体相机以及光镜和扫描电子显微镜下观察了八个代表性植入体的外表面和几何特征。对所研究的植入体进行的宏观分析表明,它们存在许多划痕、擦伤、变形和崩裂等缺陷。每种植入物的磨损程度各不相同,并严格取决于植入患者体内的方式以及患者的活动方式。研究发现了四种不同的植入物完整性变化来源:与制造相关的变化、与植入物应用相关的变化、与日常生活相关的变化和与植入物移除相关的变化。
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Characteristics of orthopaedic implants damage and mechanisms of its initiation
Implant fractures complicate orthopaedic procedures requiring secondary surgeries. However, it is not exactly known when the damage initiation starts and which factors predispose them to the highest degree. Thus, the aim of the study was to characterize changes observed in orthopaedic implants after their removal from the bone. Particular efforts were made to determine, which of them occur during the process of its production, installation, usage and removal. Such identification enabled to specify the role of lesions emerging during each period and their role in the implant’s deformation or fracture. The paper was focused on implants dedicated to the stabilization of the femur fractures since the bone transfers the highest loads. External surface and geometric features of eight representative implants were observed under standard and stereoscopic cameras, as well as under light and scanning electron microscopes. Macroscopic analysis of the investigated implants exhibited a number of defects in the form of scratches, abrasions, deformations and chipping. The wear degree of each implant was different and strictly depended on how it was implanted in the patient's body, as well as on how the patient exploited it through his mobility. Four different sources of implant integrity changes were identified: manufacturing-related changes, implant application-related changes, daily life-related changes and implant removal-related changes.
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来源期刊
International Journal of Damage Mechanics
International Journal of Damage Mechanics 工程技术-材料科学:综合
CiteScore
8.70
自引率
26.20%
发文量
48
审稿时长
5.4 months
期刊介绍: Featuring original, peer-reviewed papers by leading specialists from around the world, the International Journal of Damage Mechanics covers new developments in the science and engineering of fracture and damage mechanics. Devoted to the prompt publication of original papers reporting the results of experimental or theoretical work on any aspect of research in the mechanics of fracture and damage assessment, the journal provides an effective mechanism to disseminate information not only within the research community but also between the reseach laboratory and industrial design department. The journal also promotes and contributes to development of the concept of damage mechanics. This journal is a member of the Committee on Publication Ethics (COPE).
期刊最新文献
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