Tribocorrosion of hard-on-hard total hip replacements with metal and ceramic counterfaces under standard and adverse loading conditions

Beadling, Andrew R.; Bryant, Michael; Dowson, D.; Neville, Anne

doi:10.1016/j.triboint.2016.07.022

Cited by 13 publications

(19 citation statements)

References 35 publications

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“…Polarization resistance ( R P ) values were derived from the LPR measurements, by calculating the slope of a linear fit to the linear portion of the E‐I curve, 22 in the Gamry EchemAnalyst software (Version 7.8.2, Gamry Instruments). Three valid independent measurements were used for these calculations ( N = 3) for 5 over 6 electrolytes ( N = 2 for BS + HA + 3 mM H 2 O 2 ).…”

Section: Methodsmentioning

confidence: 99%

Corrosion resistance of the nickel‐free high‐nitrogen steel FeCrMnMoN0.9 under simulated inflammatory conditions

et al. 2020

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Nickel‐free, high‐nitrogen austenitic steels (AHNS) have been introduced for biomedical applications, with encouraging results in terms of mechanical and corrosion properties. Here, we tested the corrosion resistance of a nickel‐free high nitrogen steel (FeCrMnMoN0.9) in bovine serum solutions containing 0 or 3 g/L hyaluronic acid (HA), and 0, 3, or 30 mM hydrogen peroxide (H2O2) simulating no, moderate, or strong inflammatory conditions, respectively. Nondestructive electrochemical measurements (open circuit potential [OCP], linear polarization resistance “RP”, and electrochemical impedance spectroscopy) were run in triplicate over 10 hr. The presence of HA had no significant effect either on the stabilized OCP values, or on the corrosion resistance of FeCrMnMoN0.9. Increasing H2O2 concentrations shifted the OCP to more electropositive values; the corrosion resistance decreased only at a 30 mM H2O2. Final RP values at 0, 3, and 30 mM H2O2 resulted in 1598 ± 276, 1746 ± 308, and 439 ± 47 kΩ cm2, respectively. These values were 4–14 times higher, than the RP values measured on LC‐CoCrMo in our previous study, conducted under identical conditions. While these findings are encouraging, future studies need to focus on tribocorrosive properties of the AHNS to evaluate its applicability in joint replacement.

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Section: Methodsmentioning

confidence: 99%

Corrosion resistance of the nickel‐free high‐nitrogen steel FeCrMnMoN0.9 under simulated inflammatory conditions

et al. 2020

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“…The applied metal alloys are mainly based on titanium, cobalt, iron, which has the distinguished passive corrosion behavior since an oxide film that develops at the surface spontaneously [3]. However, wear debris and release of metal ions due to the damage of oxide film have become the focus of much research due to extensive reported problems with some MoM devices [4].…”

Section: Introductionmentioning

confidence: 99%

Tribofilms on CoCrMo alloys: Understanding the role of the lubricant

2019

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The tribological activation of a passive metal alloy in an aqueous biological environment have been highlighted by many researchers; better known as bio-tribocorrosion. Tribocorrosion processes, which can be found at a number of metal-based biomedical implant interfaces, can be affected by lubricant species such as proteins, amino acids and salts. To date, researchers have quantified how the presence of organic species and the environment affect the tribological and corrosion process. However, the nature of the bio-films is still broadly to be explored. This study aims to understand how the lubricant-surface interactions influence the evolving frictional, corrosion and material volume loss from CoCrMo alloys and how the formation of any tribo-film at the interface may influence the aforementioned processes. This current research uses reciprocating tribocorrosion tests of CoCrMo surfaces in saline, protein, and protein-free cell culture medium lubricants (0.9% NaCl, 25% Foetal Bovine Serum (FBS) diluted in Phosphate Buffered Saline (PBS), Dulbecco's Modified Eagle Medium (DMEM) and 25% FBS in DMEM solutions). Results show the addition of organic constituents give a better tribology and corrosion performances. XPS confirmed that chemical reactions happened on the tested surfaces. Calcium, phosphorus and sulphur are shown to be catalysed to react in tribology-induced processes and have important roles in tribocorrosion. These results contribute to the understanding of protein-metal interactions occurring in tribofilm formation on wearing surfaces.

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“…This agreed with the steady-state values demonstrated both in Figure 6 and as reported previously. 28,29 Upon increasing the inclination to 40°the anodic currents immediately increased to 20-40 µA and again to 40-60 µA at 45°. At the final 50°inclination the anodic current increased to 60-70 µA for the first repeat and continued to climb to over 120 µA by the third repeat.…”

Section: Initiation Of Slidingmentioning

confidence: 97%

Adverse loading effects on tribocorrosive degradation of 28 mm metal-on-metal hip replacement bearings

Beadling

Bryant

Dowson

et al. 2021

Proceedings of the Institution of Mechanical Engineers, Part J:

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Following the high clinical failure rates of metal-on-metal total hip replacements much work has been undertaken to investigate their poor performance. So called adverse loading scenarios such as acetabular inclination and microseparation have been attributed to indicators for failure of the implants. The ISO hip simulation standards (ISO 14242:1) still rely on gravimetric and ex situ analysis, considering only the total wear during articulation. Live in situ sensing can provide valuable insight into the degradation mechanisms of metallic interfaces under such scenarios. Clinical 28 mm diameter metal-on-metal components were articulated in a full-ISO hip simulator. The bearings were subjected to increasing angles of acetabular inclination and retroversion over short-term periods of articulation. Corrosive degradation was monitored during sliding by means of an in situ three-electrode cell. Changing acetabular inclination from 30° to 50° resulted in greater cathodic shifts in OCP upon the initiation of sliding; from −50 mV to as much as −150 mV. Under anodic polarisation (0 mV vs. Ag/AgCl) the resultant currents at the initiation of sliding also increased significantly with inclination; from approximately 4–10 µA to over 120 µA. Increased retroversion of 20° also resulted in increased anodic currents of 55–60 µA. Changing the nature of articulation demonstrated increased corrosive material loss compared to a standard ISO 14242 profile. The sole use of gravimetric assessment to determine a wear rate for hip replacement bearings under simulation can therefore neglect important degradation mechanisms, such as tribocorrosive loss in devices with metal sliding interfaces.

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Tribocorrosion of hard-on-hard total hip replacements with metal and ceramic counterfaces under standard and adverse loading conditions

Cited by 13 publications

References 35 publications

Corrosion resistance of the nickel‐free high‐nitrogen steel FeCrMnMoN0.9 under simulated inflammatory conditions

Corrosion resistance of the nickel‐free high‐nitrogen steel FeCrMnMoN0.9 under simulated inflammatory conditions

Tribofilms on CoCrMo alloys: Understanding the role of the lubricant

Adverse loading effects on tribocorrosive degradation of 28 mm metal-on-metal hip replacement bearings

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