Dynamical mechanical analysis as an assay of cross-link density of orthopaedic ultra high molecular weight polyethylene

Steven D. Reinitz; Evan M. Carlson; Rayna A.C. Levine; Katherine J. Franklin; Douglas W. Van Citters

doi:10.1016/j.polymertesting.2015.06.008

Dynamical mechanical analysis as an assay of cross-link density of orthopaedic ultra high molecular weight polyethylene

Steven D. Reinitz, Evan M. Carlson, Rayna A.C. Levine, Katherine J. Franklin, Douglas W. Van Citters

Research output: Contribution to journal › Article › peer-review

39 Scopus citations

Abstract

Abstract The established gravimetric gel swell technique for measuring cross-link density in orthopaedic ultra-high molecular weight polyethylene (UHMWPE) is unable to detect local distributions of cross-link density that may be expected after in vivo degradation. Dynamic mechanical analysis (DMA) offers better spatial resolution of cross-linking. The ability to measure cross-link density in thin specimens using DMA would enable depth dependent analysis of cross-link density, opening the door to future studies on the effects of oxidation, antioxidants, and other factors on cross-linking. Thus, the aim of this study was to compare the performance of gel swell and DMA in the measurement of cross-link density in a range of highly cross-linked UHMWPE materials and to determine the relationship between the results of the two techniques. The results suggest that DMA and gel swell each offer advantages, and that both may have applications in the study of explanted orthopaedic UHMWPE bearings.

Original language	English (US)
Article number	4454
Pages (from-to)	174-178
Number of pages	5
Journal	Polymer Testing
Volume	45
DOIs	https://doi.org/10.1016/j.polymertesting.2015.06.008
State	Published - Jul 2 2015
Externally published	Yes

Bibliographical note

Funding Information:
This study was funded by a grant from DePuy-Synthes Joint Reconstruction in support of the laboratory. The funding entity was not involved in this investigation.

Publisher Copyright:
© 2015 Elsevier Ltd.

Keywords

Arthroplasty
Cross-linking
Dynamic mechanical analysis
Polyethylene
UHMWPE

Access

10.1016/j.polymertesting.2015.06.008

OpenUrl availability

Full text

Cite this

@article{073dc08b0709411c83f8a5b73a767f89,

title = "Dynamical mechanical analysis as an assay of cross-link density of orthopaedic ultra high molecular weight polyethylene",

abstract = "Abstract The established gravimetric gel swell technique for measuring cross-link density in orthopaedic ultra-high molecular weight polyethylene (UHMWPE) is unable to detect local distributions of cross-link density that may be expected after in vivo degradation. Dynamic mechanical analysis (DMA) offers better spatial resolution of cross-linking. The ability to measure cross-link density in thin specimens using DMA would enable depth dependent analysis of cross-link density, opening the door to future studies on the effects of oxidation, antioxidants, and other factors on cross-linking. Thus, the aim of this study was to compare the performance of gel swell and DMA in the measurement of cross-link density in a range of highly cross-linked UHMWPE materials and to determine the relationship between the results of the two techniques. The results suggest that DMA and gel swell each offer advantages, and that both may have applications in the study of explanted orthopaedic UHMWPE bearings.",

keywords = "Arthroplasty, Cross-linking, Dynamic mechanical analysis, Polyethylene, UHMWPE",

author = "Reinitz, {Steven D.} and Carlson, {Evan M.} and Levine, {Rayna A.C.} and Franklin, {Katherine J.} and {Van Citters}, {Douglas W.}",

note = "Funding Information: This study was funded by a grant from DePuy-Synthes Joint Reconstruction in support of the laboratory. The funding entity was not involved in this investigation. Publisher Copyright: {\textcopyright} 2015 Elsevier Ltd.",

year = "2015",

month = jul,

day = "2",

doi = "10.1016/j.polymertesting.2015.06.008",

language = "English (US)",

volume = "45",

pages = "174--178",

journal = "Polymer Testing",

issn = "0142-9418",

publisher = "Elsevier Limited",

}

TY - JOUR

T1 - Dynamical mechanical analysis as an assay of cross-link density of orthopaedic ultra high molecular weight polyethylene

AU - Reinitz, Steven D.

AU - Carlson, Evan M.

AU - Levine, Rayna A.C.

AU - Franklin, Katherine J.

AU - Van Citters, Douglas W.

N1 - Funding Information: This study was funded by a grant from DePuy-Synthes Joint Reconstruction in support of the laboratory. The funding entity was not involved in this investigation. Publisher Copyright: © 2015 Elsevier Ltd.

PY - 2015/7/2

Y1 - 2015/7/2

N2 - Abstract The established gravimetric gel swell technique for measuring cross-link density in orthopaedic ultra-high molecular weight polyethylene (UHMWPE) is unable to detect local distributions of cross-link density that may be expected after in vivo degradation. Dynamic mechanical analysis (DMA) offers better spatial resolution of cross-linking. The ability to measure cross-link density in thin specimens using DMA would enable depth dependent analysis of cross-link density, opening the door to future studies on the effects of oxidation, antioxidants, and other factors on cross-linking. Thus, the aim of this study was to compare the performance of gel swell and DMA in the measurement of cross-link density in a range of highly cross-linked UHMWPE materials and to determine the relationship between the results of the two techniques. The results suggest that DMA and gel swell each offer advantages, and that both may have applications in the study of explanted orthopaedic UHMWPE bearings.

AB - Abstract The established gravimetric gel swell technique for measuring cross-link density in orthopaedic ultra-high molecular weight polyethylene (UHMWPE) is unable to detect local distributions of cross-link density that may be expected after in vivo degradation. Dynamic mechanical analysis (DMA) offers better spatial resolution of cross-linking. The ability to measure cross-link density in thin specimens using DMA would enable depth dependent analysis of cross-link density, opening the door to future studies on the effects of oxidation, antioxidants, and other factors on cross-linking. Thus, the aim of this study was to compare the performance of gel swell and DMA in the measurement of cross-link density in a range of highly cross-linked UHMWPE materials and to determine the relationship between the results of the two techniques. The results suggest that DMA and gel swell each offer advantages, and that both may have applications in the study of explanted orthopaedic UHMWPE bearings.

KW - Arthroplasty

KW - Cross-linking

KW - Dynamic mechanical analysis

KW - Polyethylene

KW - UHMWPE

UR - http://www.scopus.com/inward/record.url?scp=84933524445&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84933524445&partnerID=8YFLogxK

U2 - 10.1016/j.polymertesting.2015.06.008

DO - 10.1016/j.polymertesting.2015.06.008

M3 - Article

AN - SCOPUS:84933524445

SN - 0142-9418

VL - 45

SP - 174

EP - 178

JO - Polymer Testing

JF - Polymer Testing

M1 - 4454

ER -

Dynamical mechanical analysis as an assay of cross-link density of orthopaedic ultra high molecular weight polyethylene

Abstract

Bibliographical note

Keywords

Access

OpenUrl availability

Other files and links

Fingerprint

Cite this