Investigation of long-lived free radicals in shelf-aged UHMWPE tibial liners
UHMWPE used in total joint arthroplasty has commonly been sterilized by gamma radiation. Irradiation and subsequent aging in air reportedly cause extensive oxidation and, thus, adversely affect this material. Long-lived free radicals in gamma-sterilized/shelf-aged UHMWPE tibial inserts were investig...
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| creator | Trieu, H.H. Haggard, W.O. Parr, J.E. Thomas, D.E. Jahan, M.S. |
| description | UHMWPE used in total joint arthroplasty has commonly been sterilized by gamma radiation. Irradiation and subsequent aging in air reportedly cause extensive oxidation and, thus, adversely affect this material. Long-lived free radicals in gamma-sterilized/shelf-aged UHMWPE tibial inserts were investigated in this study. Significant concentrations of peroxy and primary radicals were found in the surface layer and the core region, respectively. Based on this study, it is expected that ir radiation of UHMWPE in an inert environment would result in long-lived primary radicals, which could be a potential cause of long-term oxidation. |
| doi_str_mv | 10.1109/SBEC.1997.583219 |
| format | Conference Proceeding |
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Irradiation and subsequent aging in air reportedly cause extensive oxidation and, thus, adversely affect this material. Long-lived free radicals in gamma-sterilized/shelf-aged UHMWPE tibial inserts were investigated in this study. Significant concentrations of peroxy and primary radicals were found in the surface layer and the core region, respectively. Based on this study, it is expected that ir radiation of UHMWPE in an inert environment would result in long-lived primary radicals, which could be a potential cause of long-term oxidation.</description><identifier>ISSN: 1086-4105</identifier><identifier>ISBN: 9780780338692</identifier><identifier>ISBN: 0780338693</identifier><identifier>DOI: 10.1109/SBEC.1997.583219</identifier><language>eng</language><publisher>IEEE</publisher><subject>Aging ; Gamma rays ; Immune system ; Implants ; Material storage ; Oxidation ; Paramagnetic resonance ; Physics ; Polyethylene ; Research and development</subject><ispartof>Proceedings of the 1997 16 Southern Biomedical Engineering Conference, 1997, p.79-83</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/583219$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>309,310,780,784,789,790,2058,4050,4051,27925,54920</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/583219$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Trieu, H.H.</creatorcontrib><creatorcontrib>Haggard, W.O.</creatorcontrib><creatorcontrib>Parr, J.E.</creatorcontrib><creatorcontrib>Thomas, D.E.</creatorcontrib><creatorcontrib>Jahan, M.S.</creatorcontrib><title>Investigation of long-lived free radicals in shelf-aged UHMWPE tibial liners</title><title>Proceedings of the 1997 16 Southern Biomedical Engineering Conference</title><addtitle>SBEC</addtitle><description>UHMWPE used in total joint arthroplasty has commonly been sterilized by gamma radiation. Irradiation and subsequent aging in air reportedly cause extensive oxidation and, thus, adversely affect this material. Long-lived free radicals in gamma-sterilized/shelf-aged UHMWPE tibial inserts were investigated in this study. Significant concentrations of peroxy and primary radicals were found in the surface layer and the core region, respectively. Based on this study, it is expected that ir radiation of UHMWPE in an inert environment would result in long-lived primary radicals, which could be a potential cause of long-term oxidation.</description><subject>Aging</subject><subject>Gamma rays</subject><subject>Immune system</subject><subject>Implants</subject><subject>Material storage</subject><subject>Oxidation</subject><subject>Paramagnetic resonance</subject><subject>Physics</subject><subject>Polyethylene</subject><subject>Research and development</subject><issn>1086-4105</issn><isbn>9780780338692</isbn><isbn>0780338693</isbn><fulltext>true</fulltext><rsrctype>conference_proceeding</rsrctype><creationdate>1997</creationdate><recordtype>conference_proceeding</recordtype><sourceid>6IE</sourceid><sourceid>RIE</sourceid><recordid>eNotj0FLxDAUhAMquK57F0_5A6l5fW2aHLVUd6GioIvHJW1faiS20pYF_72BFQbmMB_DDGM3IBMAae7eHqoyAWOKJNeYgjljG1NoGYWolUnP2QqkViIDmV-yq3n-kjLiSq1YvRuONC--t4sfBz46HsahF8EfqeNuIuKT7Xxrw8z9wOdPCk7YPmb77fPHa8UX33gbePADTfM1u3CRpM2_r9n-sXovt6J-edqV97XwILNFOKOdKQCp03lGMnVgddpi6whcXAhoMmU06gatKiRGpHHYNmnbKbKdKXDNbk-9nogOP5P_ttPv4fQd_wAie0zd</recordid><startdate>1997</startdate><enddate>1997</enddate><creator>Trieu, H.H.</creator><creator>Haggard, W.O.</creator><creator>Parr, J.E.</creator><creator>Thomas, D.E.</creator><creator>Jahan, M.S.</creator><general>IEEE</general><scope>6IE</scope><scope>6IL</scope><scope>CBEJK</scope><scope>RIE</scope><scope>RIL</scope></search><sort><creationdate>1997</creationdate><title>Investigation of long-lived free radicals in shelf-aged UHMWPE tibial liners</title><author>Trieu, H.H. ; Haggard, W.O. ; Parr, J.E. ; Thomas, D.E. ; Jahan, M.S.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-i104t-f98f9713ed854e02f1a82c3cfe1f105139469838b3a67034e0bf3cb2cd6ead973</frbrgroupid><rsrctype>conference_proceedings</rsrctype><prefilter>conference_proceedings</prefilter><language>eng</language><creationdate>1997</creationdate><topic>Aging</topic><topic>Gamma rays</topic><topic>Immune system</topic><topic>Implants</topic><topic>Material storage</topic><topic>Oxidation</topic><topic>Paramagnetic resonance</topic><topic>Physics</topic><topic>Polyethylene</topic><topic>Research and development</topic><toplevel>online_resources</toplevel><creatorcontrib>Trieu, H.H.</creatorcontrib><creatorcontrib>Haggard, W.O.</creatorcontrib><creatorcontrib>Parr, J.E.</creatorcontrib><creatorcontrib>Thomas, D.E.</creatorcontrib><creatorcontrib>Jahan, M.S.</creatorcontrib><collection>IEEE Electronic Library (IEL) Conference Proceedings</collection><collection>IEEE Proceedings Order Plan All Online (POP All Online) 1998-present by volume</collection><collection>IEEE Xplore All Conference Proceedings</collection><collection>IEEE Electronic Library (IEL)</collection><collection>IEEE Proceedings Order Plans (POP All) 1998-Present</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Trieu, H.H.</au><au>Haggard, W.O.</au><au>Parr, J.E.</au><au>Thomas, D.E.</au><au>Jahan, M.S.</au><format>book</format><genre>proceeding</genre><ristype>CONF</ristype><atitle>Investigation of long-lived free radicals in shelf-aged UHMWPE tibial liners</atitle><btitle>Proceedings of the 1997 16 Southern Biomedical Engineering Conference</btitle><stitle>SBEC</stitle><date>1997</date><risdate>1997</risdate><spage>79</spage><epage>83</epage><pages>79-83</pages><issn>1086-4105</issn><isbn>9780780338692</isbn><isbn>0780338693</isbn><abstract>UHMWPE used in total joint arthroplasty has commonly been sterilized by gamma radiation. Irradiation and subsequent aging in air reportedly cause extensive oxidation and, thus, adversely affect this material. Long-lived free radicals in gamma-sterilized/shelf-aged UHMWPE tibial inserts were investigated in this study. Significant concentrations of peroxy and primary radicals were found in the surface layer and the core region, respectively. Based on this study, it is expected that ir radiation of UHMWPE in an inert environment would result in long-lived primary radicals, which could be a potential cause of long-term oxidation.</abstract><pub>IEEE</pub><doi>10.1109/SBEC.1997.583219</doi><tpages>5</tpages></addata></record> |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Conference Proceedings |
| subjects | Aging Gamma rays Immune system Implants Material storage Oxidation Paramagnetic resonance Physics Polyethylene Research and development |
| title | Investigation of long-lived free radicals in shelf-aged UHMWPE tibial liners |
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