Tribological interactions of modern biomaterials used in total hip arthroplasty (THA)

Affatato, Saverio

doi:10.1533/9781782420392.2.99

Cited by 11 publications

(12 citation statements)

References 41 publications

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“…Clinical studies include the evaluation of retrieved implants, the assessment of penetration depth using measurements of femoral head migration rate on follow-up x-rays or radiostereometric analysis (RSA). 7 However, wear takes place in three dimensions (3D), and it is difficult to obtain accurate results by two-dimensional (2D) x-ray. Although RSA allows 3D measurement, it is quite expensive and intrusive.…”

Section: Introductionmentioning

confidence: 99%

Finite element analysis of polyethylene wear in total hip replacement: A literature review

Wang

Isaac

Wilcox

et al. 2019

Proc Inst Mech Eng H

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Evaluation and prediction of wear play a key role in product design and material selection of total hip replacements, because wear debris is one of the main causes of loosening and failure. Multifactorial clinical or laboratory studies are high cost and require unfeasible timeframes for implant development. Simulation using finite element methods is an efficient and inexpensive alternative to predict wear and pre-screen various parameters. This article presents a comprehensive literature review of the state-of-the-art finite element modelling techniques that have been applied to evaluate wear in polyethylene hip replacement components. A number of knowledge gaps are identified including the need to develop appropriate wear coefficients and the analysis of daily living activities.

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Section: Introductionmentioning

confidence: 99%

Finite element analysis of polyethylene wear in total hip replacement: A literature review

Wang

Isaac

Wilcox

et al. 2019

Proc Inst Mech Eng H

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“…Such registries should collect all data on joint prostheses performance in order to evaluate the effectiveness of an implant, its lifetime and performance for the treatment of specific cases. In this way, the registry can educate the surgeon on the best type of prosthesis and surgical technique or to improve preoperative planning [3]. Consequently, the healthcare resource will be properly used.…”

Section: Conclusion and Future Prospectsmentioning

confidence: 99%

“…Its development is one of the most challenging issues of the century in the field of implant technology [1]. Several materials were used for this scope: glass, polymers, metal alloys, ceramics, composites, etc., trying to combine biocompatibility and fatigue resistance, stiffness, toughness, withstanding static and dynamic loads, and high resistance to mechanical and chemical wear [2,3]. All these biomaterials were developed with the aim to improve the patient’s quality life, avoiding repeated surgery.…”

Section: Introductionmentioning

confidence: 99%

Materials for Hip Prostheses: A Review of Wear and Loading Considerations

2019

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Replacement surgery of hip joint consists of the substitution of the joint with an implant able to recreate the articulation functionality. This article aims to review the current state of the art of the biomaterials used for hip implants. Hip implants can be realized with different combination of materials, such as metals, ceramics and polymers. In this review, we analyze, from international literature, the specific characteristics required for biomaterials used in hip joint arthroplasty, i.e., being biocompatible, resisting heavy stress, opposing low frictional forces to sliding and having a low wear rate. A commentary on the evolution and actual existing hip prostheses is proposed. We analyzed the scientific literature, collecting information on the material behavior and the human-body response to it. Particular attention has been given to the tribological behavior of the biomaterials, as friction and wear have been key aspects to improve as hip implants evolve. After more than 50 years of evolution, in term of designs and materials, the actual wear rate of the most common implants is low, allowing us to sensibly reduce the risk related to the widespread debris distribution in the human body.

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“…Corncob as raw material for biochar was sun-dried for two days in order to accelerate the pyrolysis process. After the drying process, the water content of the corncob was measured by the gravimetric method [19]. Then the production of biochar can be started using traditional soil pit, closed drum kilns, and open drum kilns.…”

Section: Corncob Preparationmentioning

confidence: 99%

Effect of Production Technique on Corncob Biochar Quality

Anika

Mahardika

Panjaitan

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Lampung Selatan Regency is one of the centers of corn production in Lampung, Indonesia. Along with the increase in corn production, the resulting corn biomass waste also increases. Corn biomass waste such as cobs can be utilized into more useful products such as biochar which is useful as a soil amendment. The purpose of this research was to evaluate the quality of biochar based on its production technique. The three biochar production techniques used were traditional soil pit, closed drum kilns, and open drum kilns.. The quality of biochar was determined by the temperature and period of the pyrolysis process, which was greatly influenced by the selected production technique. The results showed that the closed drum kiln technique produces biochar with better properties for increasing soil fertility because it produces the biochar with the highest fixed carbon and CEC.

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Tribological interactions of modern biomaterials used in total hip arthroplasty (THA)

Cited by 11 publications

References 41 publications

Finite element analysis of polyethylene wear in total hip replacement: A literature review

Finite element analysis of polyethylene wear in total hip replacement: A literature review

Materials for Hip Prostheses: A Review of Wear and Loading Considerations

Effect of Production Technique on Corncob Biochar Quality

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