Metallographic investigation of a failed stainless steel orthopaedic implant device

Sivakumar, M.; Rajeswari, S.; Thulasiraman, V.

doi:10.1007/bf00241165

Cited by 9 publications

(3 citation statements)

References 3 publications

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“…Apart from biological analogue implants such as those based on β-TCP and HAP, there is a class of metallic implants which despite their offering of proper mechanical properties, pose serious issues related to corrosion that is manifested in organ and tissue anomalies in response to increased ion concentrations. The most commonly used implants include stainless-steel, cobalt-chromium alloys and titanium-based implants [1]. Despite their low rates of failure, these represent a considerable number of surgical revisions which researchers have attempted to reduce by surface modification techniques such as anodization, electropolishing and ion implantation.…”

Section: Introductionmentioning

confidence: 99%

Bioactive coating as a surface modification technique for biocompatible metallic implants: a review

Priyadarshini

Rama

Chetan

et al. 2019

Journal of Asian Ceramic Societies

142

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Most high load-bearing implants are metallic alloys which contain toxic chemical components that might be released due to the corrosive environment of body fluids and load-bearing activity. Surface modification techniques do not guarantee biocompatibility. Hence, the bioactive surface of implants can be modified by coating the surface with a suitable material that addresses the needs of the patient. The choice and application process of the coatings should be determined based on the workability of the material and its physiochemical properties, such as the procedures involved and performance in avoiding removal of any desirable material properties that are helpful in the tissue regeneration process. Tailor-made coating materials prove very promising, as they might improve permanent implantations, make them more affordable and reduce the need for surgical revisions. The scope of the featured properties, such as addition of accelerated tissue regeneration, antibacterial properties and controlled release and removal of debris from the biological system to the metal implants makes coatings an ideal choice for surface modification of implants. This report reviews several options available for forming a biologically active layer over metallic surfaces that will interact with and produce desirable effects on host tissues.

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Section: Introductionmentioning

confidence: 99%

Bioactive coating as a surface modification technique for biocompatible metallic implants: a review

Priyadarshini

Rama

Chetan

et al. 2019

Journal of Asian Ceramic Societies

142

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“…which possess superior mechanical or corrosion resistance [1][2][3][4]. The aim of present paper is put in evidence of some macro or microstructural features which may be met in case of multiple utilization of ostheosysthesis bands in comparison with other recent papers [5][6][7][8][9].…”

Section: Introductionmentioning

confidence: 96%

Mechanical and Corrosion Behaviour of Some Devices for Ostheosinthesis

Ghiban

2007

AMR

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Orthopaedic implants represent mechanical devices which may be used for different purposes in human skeleton. such as either repairing of soft tissues (ligaments) or hard tissues (fractures. osteotomy. partial or total replacements). The aim of present paper is to put in evidence some macro and micro structural features revealed at state of surface after 5 months of implant in a female femoral fracture. Investigated surfaces were analyzed by optical and scanning electron microscopy and by X-Rays diffraction.

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“…For a long time, metals were the most common materials used for the elaboration of implants. The materials commonly used for these applications include stainless-steel, cobalt-chromium alloys and titanium alloys [1]. The titanium alloys were proved to be the best candidates to manufacture prosthetic implants thanks to their interesting mechanical properties (Young's modulus and hardness) which allow them to fulfill all the required features for the bone replacement and function recovery.…”

Section: Introductionmentioning

confidence: 99%

Electrophoretic Deposition of 45S5 Bioglass® Coatings on the Ti6Al4V Prosthetic Alloy with Improved Mechanical Properties

et al. 2020

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In this paper, 45S5 Bioglass® coatings were elaborated by electrophoretic deposition (EPD) on the titanium alloy Ti6Al4V. An adequate grinding protocol was developed to obtain a stable suspension of submicrometric particles in isopropanol. The voltage and the deposition time of EPD were optimized. An optimal voltage of 30 V and two deposition times (30 and 90 s) were chosen to obtain two different coatings with thicknesses of 21 and 85 µm, respectively. The as-deposited coatings were thermally treated following a two-step protocol: one hour at 120 °C followed by one hour at 450 °C. The surface morphology and the chemical analysis of the 45S5 Bioglass® coatings were assessed, before and after heat treatment, by scanning electron microscopy associated to X-ray microanalysis (SEM-EDXS). Their structural analysis was performed by X-ray diffraction (XRD). A scratch test study was developed for mechanical properties analysis. The obtained results revealed that the obtained coatings were homogeneous, weakly crystallized with an important compactness. An increase in the critical load LC associated with the cohesive limit of the film (from Lc = 3.39 N to Lc = 5.18 N) was observed when the coating thickness was decreased from 85 to 21 µm. After the thermal treatment, the chemical composition of the coatings was not altered, and their mechanical properties were improved.

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Metallographic investigation of a failed stainless steel orthopaedic implant device

Cited by 9 publications

References 3 publications

Bioactive coating as a surface modification technique for biocompatible metallic implants: a review

Bioactive coating as a surface modification technique for biocompatible metallic implants: a review

Mechanical and Corrosion Behaviour of Some Devices for Ostheosinthesis

Electrophoretic Deposition of 45S5 Bioglass® Coatings on the Ti6Al4V Prosthetic Alloy with Improved Mechanical Properties

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