Corrosion fatigue failure of a high carbon CoCrMo modular hip prosthesis: Failure analysis and electrochemical study

Lanzutti, A.; Andreatta, F.; Rossi, Luciana Savoi; Benedetto, P. Di; Causero, A.; Magnan, M.; Fedrizzi, L.

doi:10.1016/j.engfailanal.2019.07.044

Cited by 24 publications

(8 citation statements)

References 28 publications

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“…As expected, surface hardness is higher than bulk hardness, because of the oxide layer. The hardness of CoCr alloy is within the range of hardness reported by A. Lanzutti et al [20].…”

Section: Hardnesssupporting

confidence: 86%

A comparative surface analysis of explanted hip prostheses: stainless steel and Co-Cr alloy versus titanium alloy

Bermúdez-Castañeda

Esguerra-Arce

et al. 2021

Rev.Fac.Ing.Univ.Antioquia

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The introduction of modular design in total hip arthroplasty has enabled the use of different materials in one single configuration and the adjustment of the prosthesis to the patient’s body, and facilitated medical revisions. However, modularity leads to the presence of new interfaces created between pieces in contact, raising the issue of degradation. Tribocorrosion phenomena have been identified as the main degradation mechanism due to the mechanical, chemical, and electrochemical conditions acting on the materials. In addition, conditions inside the human body are unclear, regarding electrochemical settings and the interaction between the electrochemical and mechanical action. This work is focused on the degradation of monopolar hip joint implants made from biomedical alloys such as stainless steel, Ti, and CoCr alloys. Three cases are presented and analyzed in terms of the degradation level along the trunnion length. Surface analysis done on a titanium trunnion showed a significant ploughing on the distal part, compared to what was found for stainless Steel and cobalt-chromium alloys, which can produce a stuck in this area. Meanwhile, in the proximal part, wear debris is found, which suggests more movement in the internal part. Although few debris particles were identified in CoCr trunnion, a large amount of material inside the contact was observed. This could be related to the ploughing generated in the distal thread pattern, which allowed the material to come inside and outside the contact.

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“…As expected, surface hardness is higher than bulk hardness, because of the oxide layer. The hardness of CoCr alloy is within the range of hardness reported by A. Lanzutti et al [20].…”

Section: Hardnesssupporting

confidence: 86%

A comparative surface analysis of explanted hip prostheses: stainless steel and Co-Cr alloy versus titanium alloy

Bermúdez-Castañeda

Esguerra-Arce

et al. 2021

Rev.Fac.Ing.Univ.Antioquia

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“…Using backscattered electron microscopy, the authors demonstrated that the crack propagation process is one of corrosion cracking, where the crack tip stresses arise from the oxide formation in the crack and not from externally applied tensile stresses [ 14 ]. In CoCr necks, many crack nucleation sites are found to be randomly positioned around the perimeter of a fracture surface [ 15 ]. The intergranulated corroded areas likely act as local stressors under fatigue loads [ 15 ].…”

Section: Resultsmentioning

confidence: 99%

“…In CoCr necks, many crack nucleation sites are found to be randomly positioned around the perimeter of a fracture surface [ 15 ]. The intergranulated corroded areas likely act as local stressors under fatigue loads [ 15 ]. Fatigue, fracture, corrosion, dissociation, subsidence, and loosening are potentially problematic mechanical complications [ 16 ].…”

Section: Resultsmentioning

confidence: 99%

Dual Modular Titanium Alloy Femoral Stem Failure Mechanisms and Suggested Clinical Approaches

2021

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Titanium (Ti) alloys have been proven to be one of the most suitable materials for orthopaedic implants. Dual modular stems have been introduced to primary total hip arthroplasty (THA) to enable better control of the femoral offset, leg length, and hip stability. This systematic review highlights information acquired for dual modular Ti stem complications published in the last 12 years and offers a conclusive discussion of the gathered knowledge. Articles referring to dual modular stem usage, survivorship, and complications in English were searched from 2009 to the present day. A qualitative synthesis of literature was carried out, excluding articles referring solely to other types of junctions or problems with cobalt-chromium alloys in detail. In total, 515 records were identified through database searching and 78 journal articles or conference proceedings were found. The reasons for a modular neck fracture of a Ti alloy are multifactorial. Even though dual modular stems have not shown any clinical benefits for patients and have been associated with worse results regarding durability than monolithic stems, some designs are still marketed worldwide. Orthopaedic surgeons should use Ti6Al4V dual modular stem designs for primary THA in special cases only.

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“…Segundo os autores, a corrosão ocorreu porque o implante que era fabricado na liga Ti-6Al-4V possuía em sua microestrutura uma fase que prejudica a resistência à corrosão (Pimenta et al, 2021). Fenômeno similar ao observado por Pimenta e colaboradores (Pimenta et al, 2021) também foi observado por Lanzutti e colaboradores em um implante fabricado com uma liga Co-Cr-Mo (Lanzutti et al, 2019). Kiani Khouzani e colaboradores identificam que um implante fabricado em aço inoxidável AISI 316L falhou devido a um erro metalúrgico na fabricação do implante, que resultou em um excesso de inclusões.…”

Section: Fadigaunclassified

Falhas em implantes de quadril

Dias

Gonçalves

2021

RSD

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A fratura óssea, indubitavelmente, reside em um dos principais problemas associados ao aumento da expectativa de vida da população. Principalmente, as fraturas femorais, as quais demandam por tratamento cirúrgico para redução da fratura por osteossíntese. Nas fraturas femorais com comprometimento grave da estrutura anatômica na epífise proximal, recomenda-se a substituição da articulação por implante total do quadril (THR – Total Hip Replacement). A artroplastia de quadril trata-se de um procedimento largamente utilizado na medicina, contudo, diversas falhas de implantes são reportadas. O objetivo desse trabalho consistiu em apresentar, por meio de uma revisão de literatura, as principais causas que levam os implantes totais de quadril a falharem em uso e elucidar ações de medidas corretivas para evitar tais falhas. Foram identificadas as principais causas de falhas nos implantes: fadiga, afrouxamento, metalose, associados a outros insucessos relacionado ao perfil do paciente. Concluiu-se que os dispositivos de osteossíntese precisam ser elaborados de forma multidisciplinar com parâmetros exigentes, envolvendo ciência médica, projeto de engenharia e seleção de material, com propósito de minorar os riscos de falhas e prevenir acidentes, por conseguinte, evitar ressubmeter o indivíduo a novo procedimento cirúrgico de correção.

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Corrosion fatigue failure of a high carbon CoCrMo modular hip prosthesis: Failure analysis and electrochemical study

Cited by 24 publications

References 28 publications

A comparative surface analysis of explanted hip prostheses: stainless steel and Co-Cr alloy versus titanium alloy

A comparative surface analysis of explanted hip prostheses: stainless steel and Co-Cr alloy versus titanium alloy

Dual Modular Titanium Alloy Femoral Stem Failure Mechanisms and Suggested Clinical Approaches

Falhas em implantes de quadril

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