Influence of Crosslinking on the Wear Performance of Polyethylene Within Total Ankle Arthroplasty

Bischoff, Jeffrey E.; Fryman, J. Craig; Parcell, Jerry; Villaseñor, Diego A. Orozco

doi:10.1177/1071100714558507

Cited by 27 publications

(21 citation statements)

References 34 publications

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“…In contrast, Bischoff et al reported mean ECDs for CPE and HXLPE that were similar to those in the present study. 5 Macrophages are derived from monocytes, present at significantly higher concentrations in areas of osteolysis, and primarily responsible for bone loss in osteolytic lesions. 8 Exposure of implant wear particles to macrophages leads to release of inflammatory cytokines and the activation of the RANKL pathway.…”

Section: Discussionmentioning

confidence: 99%

“…Nonetheless, the results of our study are consistent with the literature. 5,17,23 Finally, the true AP translation of the tibiotalar joint in the native ankle and in an ankle arthroplasty are Estimated standard deviation for the distribution. The standard deviation was not given in the paper; only the standard error was given.…”

Section: Discussionmentioning

confidence: 99%

“…On visual inspection of components at each measurement interval, there was no evidence of damage from repeated insertion and removal using liquid nitrogen. 5,16 The gait kinematics and loading conditions were applied according to previously published parameters and were based on waveforms created by Bell and Fisher, but featured a higher flexion range and peak axial load, similar to Bischoff et al 2,4,5,18 A peak load of 3188 N (approximately 3.8 × body weight) was used along with a minimum load of 200 N. The stance-swing gait cycle ratio was 60/40. The following kinematics were applied: All tests were performed for 5 million cycles (MC) with a frequency of 1 Hz.…”

Section: Wear Testingmentioning

confidence: 99%

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Wear Characteristics of Conventional Ultrahigh-Molecular-Weight Polyethylene Versus Highly Cross-Linked Polyethylene in Total Ankle Arthroplasty

et al. 2018

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Polyethylene wear particles have been linked to osteolysis after total ankle arthroplasty. There is no consensus on the importance of highly cross-linked polyethylene in total ankle arthroplasty with regard to implant wear. This is the first nonindustry study to compare the polyethylene wear rate, particle size, and particle shape of fixed-bearing total ankle arthroplasty conventional polyethylene versus highly cross-linked polyethylene. The lower wear rate and different particle size/morphology of highly cross-linked polyethylene could be beneficial in vivo to decrease osteolysis.

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Wear Testingmentioning

confidence: 99%

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Wear Characteristics of Conventional Ultrahigh-Molecular-Weight Polyethylene Versus Highly Cross-Linked Polyethylene in Total Ankle Arthroplasty

et al. 2018

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“…Marginal evidence from in vitro testing of HXPE indicates wear reduction when compared with non-CPE. 21 The cumulative annual failure rate in the UK for ankle replacements has been reported as being as low as 1.9% per annum. Five-year survivorship data from other national joint registries are: New Zealand: 93%; Sweden: 81%; Finland: 83%; Norway: 89% and 4-year survivorship in the Australian registry at 90%.…”

Section: Operative Managementmentioning

confidence: 99%

Osteoarthritis of the ankle

Ieong¹,

Keith²,

Robinson³

2020

Orthopaedics and Trauma

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Ankle arthritis is a debilitating condition. Primary ankle joint osteoarthritis is much rarer than hip or knee arthritis. The majority of cases are post-traumatic secondary to previous articular trauma or ligamentous instability. Treatment methods available are guided by disease severity and the patient's functional demands. Weight loss, activity modification, the wearing of an ankle brace or high-topped lace-up boots and orthoses should be the first line of treatment. Joint-sparing procedures such as arthroscopic debridement, supramalleolar osteotomy and distraction arthroplasty have been trialled with low levels of supporting evidence. The demand for joint preservation has led to the development of total ankle allografting procedures, but these have fallen out of favour. Despite advancements, the gold standard for end-stage arthritis remains arthrodesis, although evidence for total ankle arthroplasty in certain groups of patients is increasing. The current third-generation implants have improved survivorship although their results remain inferior to arthroplasty of the hip and knee. There is currently a UK randomized control trial of ankle replacement versus arthrodesis under way as well as several national joint registries, which will hopefully better define those patients who will gain most benefit from replacement as opposed to fusion.

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“…Wear and damage of polyethylene inserts in total joint arthroplasty (TJA) remain major factors that could lead to implant failure, potentially leading to implant loosening and revision in total ankle arthroplasty (TAA) . Contact mechanics at the metal–polyethylene articulation influence polyethylene wear .…”

mentioning

confidence: 99%

Computational Model Validation of Contact Mechanics in Total Ankle Arthroplasty

Dharia

Snyder

Bischoff

2019

Journal Orthopaedic Research

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Revision rates in total ankle arthroplasty (TAA) are nearly double compared with hip or knee arthroplasty procedures. Contact mechanics for metal-polyethylene articulation in TAA is critical due to the reduced size of the implant and higher expected load, compared with a hip or knee joint. This study was focused on developing a validated computational model to predict contact area in a polyethylene tibial bearing articulating with a metallic talar component in a bicondylar TAA design. Contact area was evaluated at five different flexion angles in an experimental test and in a computational model, per ASTM F2665. The overall contact area values predicted in the computational model matched closely (within 8%) with that measured in the comparator; well within the range reported in the literature. The credibility of the model to sufficiently predict the outputs relative to the experimental data was discussed using the guidelines provided by the recently published ASME V&V 40-2018 standard. Various sensitivities associated with both the model and the comparator, were explored. It was concluded that the validated modeling approach presented in this study demonstrated sufficient accuracy to support the use of modeling for evaluation of contact area of TAA designs.

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Influence of Crosslinking on the Wear Performance of Polyethylene Within Total Ankle Arthroplasty

Abstract: Highly crosslinked polyethylene may reduce clinical complications of total ankle replacement that are linked to polyethylene wear.

Cited by 27 publications

References 34 publications

Wear Characteristics of Conventional Ultrahigh-Molecular-Weight Polyethylene Versus Highly Cross-Linked Polyethylene in Total Ankle Arthroplasty

Wear Characteristics of Conventional Ultrahigh-Molecular-Weight Polyethylene Versus Highly Cross-Linked Polyethylene in Total Ankle Arthroplasty

Osteoarthritis of the ankle

Computational Model Validation of Contact Mechanics in Total Ankle Arthroplasty

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