The fundamentals of biotribology and its application to spine arthroplasty

Harper, Megan L.; Dooris, Andrew; Pare, Philippe

doi:10.1016/j.esas.2009.11.004

Cited by 14 publications

(5 citation statements)

References 45 publications

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“…A major driver for the difference in serum metal levels is the fundamental mechanism of wear associated with both implant types. Wear generated by posterior spinal instrumentation is primarily from fretting (unintended microscopic movement between two parts in contact) [35] compared with the microscopic surface fatigue and abrasion associated with articulating metal-on-metal TDRs [36]. This comparison is particularly relevant as a direct comparison of the serum metal burden associated with two peri-spinal metallic implant systems.…”

Section: Discussionmentioning

confidence: 99%

Prospective study on serum metal levels in patients with metal-on-metal lumbar disc arthroplasty

et al. 2012

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Purpose Metal-on-metal total disc replacement is a recent alternative treatment for degenerative disc disease. Wear and corrosion of these implants can lead to local and systemic transport of metal debris. This prospective longitudinal study examined the serum chromium and cobalt levels in 24 patients with cobalt-chromium alloy metal-onmetal lumbar disc replacements. Methods Serum was assayed for chromium (Cr) and cobalt (Co) using high-resolution inductively-coupled plasma-mass spectrometry. Detection limits were 0.015 ng/ mL for Cr and 0.04 ng/mL for Co. Results Median serum Co levels at pre-op, 3, 6, 12, 24, and 36-months post-op were 0.10, 1.03, 0.96, 0.98, 0.67, and 0.52 ng/mL, respectively. Median serum Cr levels were 0.06, 0.49, 0.65, 0.43, 0.52, and 0.50 ng/mL, respectively. Conclusion In general, these results indicated that serum Co and Cr levels are elevated at all postoperative time points and are of the same order of magnitude as those observed in well-functioning metal-on-metal surface replacements of the hip and in metal-on-metal total hip replacements at similar postoperative time points.

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Section: Discussionmentioning

confidence: 99%

Prospective study on serum metal levels in patients with metal-on-metal lumbar disc arthroplasty

et al. 2012

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“…Carbon fiber‐reinforced poly‐ether ether ketone (CFR‐PEEK) has been investigated as an alternative bearing material for a variety of orthopedic applications since the early 1990s,29 with studies demonstrating a reduction in wear of CFR‐PEEK cups tested with zirconia heads compared with a conventional PE cup 30. More recent tribological studies have also illustrated excellent wear performance in a variety of bearing configurations 31–35…”

Section: Introductionmentioning

confidence: 99%

Wear of ceramic‐on‐carbon fiber‐reinforced poly‐ether ether ketone hip replacements

Brockett

John²,

Williams

et al. 2012

J Biomed Mater Res

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Total hip replacement has been a successful surgical intervention for over 50 years, with the majority of bearings using a polyethylene cup. Long-term failure due to osteolysis and loosening has been widely documented and alternative bearings have been sought. A novel carbon fiber-reinforced poly-ether ether ketone (CFR-PEEK) cup was investigated through experimental friction and wear studies. Friction studies demonstrated the bearings operated in a boundary lubrication condition, with friction factors higher than those for other hip replacement bearings. The wear study was conducted with 36 mm diameter bearings tested against Biolox Delta heads for a period of 10 million cycles. The mean volumetric wear rate was 0.3 mm(3)/Mc, indicating the ceramic-on-CFR-PEEK bearing to be a very low wearing option for total hip replacement.

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“…Evidence of fatigue wear is seen in Figure 10(b). It may be reasonable to suggest that due to the high local contact stresses, wear is initially caused by surface fatigue demonstrated by other authors (Harper et al, 2009). Cr-and Mo-carbides are fractured and Figure 8 Figure 9 Intervertebral disc endoprosthesis Adrian Bartlomiej Mróz et al…”

Section: Wear Topography Analysismentioning

confidence: 87%

Friction and wear of the intervertebral disc endoprosthesis manufactured with use of selective laser melting process

Mróz

Łapaj²,

Wiśniewski

et al. 2017

RPJ

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Purpose Orthopaedic implants, such as intervertebral disc endoprostheses (IDEs) are difficult to manufacture by means of conventional methods because of their complex shape. However, technologies developed in recent years, such as selective laser melting, could simplify this process. Although this method is attractive in both manufacturing and rapid prototyping of IDEs, little is known about their tribological performance. The functional aim of the work is to conduct a tribological evaluation of the ASTM F75 alloy after selective laser melting process and to investigate the viability of the technology in IDE design. The research aim was an explanation of the wear mechanism of bearing surfaces with respect to the reference material. Design/methodology/approach In this paper, the tribological test results of a lumbar IDE prototype fabricated by selective laser melting and forging is presented and compared. The endoprostheses were fabricated from commercially available ASTM F75 powder using a selective laser melting device. As a reference material, a forged ASTM F1537 LC alloy was used. Comparative wear and friction tests were carried out with the use of a unique spine simulator. Findings The obtained results confirm the viability of the selective laser technology in endoprosthesis design. Unfortunately, poorer tribological wear resistance of endoprostheses produced by means of selective laser melting (SLM) technology compared with that of the reference material calls into question the possibility of using these technologies in the manufacturing process of endoprosthesis' components exposed to tribological wear. Originality/value This paper presents the friction and wear behaviour of the lumbar IDE prototype. The tests were carried out in motion and loading conditions close to those we observe in the lumbar spine.

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The fundamentals of biotribology and its application to spine arthroplasty

Cited by 14 publications

References 45 publications

Prospective study on serum metal levels in patients with metal-on-metal lumbar disc arthroplasty

Prospective study on serum metal levels in patients with metal-on-metal lumbar disc arthroplasty

Wear of ceramic‐on‐carbon fiber‐reinforced poly‐ether ether ketone hip replacements

Friction and wear of the intervertebral disc endoprosthesis manufactured with use of selective laser melting process

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