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type=\u0022text\/css\u0022 rel=\u0022stylesheet\u0022 href=\u0022\/\/d282kpwvnogo5m.cloudfront.net\/sites\/default\/files\/advagg_css\/css__ce2QY63WIanKyr8eSq7eavr1XQRRmFD6ZSmwpyJi8lM__zXwFqpqmxrZOXXcd_TpBQpjuELbmIP9wBR5UuTDWAO4__YJWWMMdfCJuAFm5cUEp88OsodhO3ZA-2lzRfoBsSlk4.css\u0022 media=\u0022all\u0022 \/\u003E\n\u003Clink rel=\u0027stylesheet\u0027 type=\u0027text\/css\u0027 href=\u0027\/sites\/all\/modules\/contrib\/panels\/plugins\/layouts\/onecol\/onecol.css\u0027 \/\u003E\u003C\/head\u003E\u003Cbody\u003E\u003Cdiv class=\u0022panels-ajax-tab-panel panels-ajax-tab-panel-sageoa-tab-art\u0022\u003E\u003Cdiv class=\u0022panel-display panel-1col clearfix\u0022 \u003E\n  \u003Cdiv class=\u0022panel-panel panel-col\u0022\u003E\n    \u003Cdiv\u003E\u003Cdiv class=\u0022panel-pane pane-highwire-markup\u0022 \u003E\n  \n      \n  \n  \u003Cdiv class=\u0022pane-content\u0022\u003E\n    \u003Cdiv class=\u0022highwire-markup\u0022\u003E\u003Cdiv xmlns=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022 id=\u0022content-block-markup\u0022 xmlns:xhtml=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022\u003E\u003Cdiv class=\u0022article fulltext-view \u0022\u003E\u003Cspan class=\u0022highwire-journal-article-marker-start\u0022\u003E\u003C\/span\u003E\u003Cdiv class=\u0022section abstract\u0022 id=\u0022abstract-1\u0022\u003E\u003Ch2\u003ESummary\u003C\/h2\u003E\n\u003Cp id=\u0022p-1\u0022\u003EThis randomized trial was designed to investigate how femoral head material affects a conventional polyethylene socket in patients undergoing total hip arthroplasty. Patients received either a metal or a delta ceramic femoral head. There was no significant difference in creep or wear of the polyethylene socket using either head type.\u003C\/p\u003E\n\u003C\/div\u003E\u003Cul class=\u0022kwd-group\u0022\u003E\u003Cli class=\u0022kwd\u0022\u003Etotal hip arthroplasty\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Efemoral head material\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Econventional polyethylene\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Emetal femoral head\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Eceramic femoral head\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Ecreep\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Ewear\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Efemoral component\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Eorthopaedics \u0026amp; sports medicine clinical trials\u003C\/li\u003E\u003Cli class=\u0022kwd\u0022\u003Ehip \u0026amp; knee conditions\u003C\/li\u003E\u003C\/ul\u003E\u003Cdiv class=\u0022section\u0022 id=\u0022sec-1\u0022\u003E\n\n\u003Cp id=\u0022p-2\u0022\u003EAmine Zaoui, MD, Universit\u00e9 Ren\u00e9 Descartes, Paris, France, presented data from a trial comparing the effect of femoral head material against conventional polyethylene (CPE) wear in total hip arthroplasty (THA). The results of the study demonstrated that the choice of a metal compared with a delta ceramic femoral head did not significantly influence creep or wear of a contemporary annealed polyethylene socket.\u003C\/p\u003E\n\u003Cp id=\u0022p-3\u0022\u003EThe study was conducted to examine the effect of femoral head material on CPE wear in a consecutive, prospective, randomized series of low friction THAs, said Dr Zaoui. Inclusion criteria included patients aged between 18 and 75 years with hip osteoarthritis. The study enrolled 110 patients (mean age, 60.6 years) from April 2007 to June 2008 who were randomized to receive either a 22.2-mm-diameter metal (n\u2005=\u200555) or delta ceramic (n\u2005=\u200555) femoral head (\u003Ca id=\u0022xref-fig-1-1\u0022 class=\u0022xref-fig\u0022 href=\u0022#F1\u0022\u003EFigure 1\u003C\/a\u003E). All patients received a polyethylene socket that was moderately cross-linked (3 Mrad of gamma radiation in nitrogen) and annealed at 130\u00b0C.\u003C\/p\u003E\n\u003Cdiv id=\u0022F1\u0022 class=\u0022fig pos-float  odd\u0022\u003E\u003Cdiv class=\u0022highwire-figure\u0022\u003E\u003Cdiv class=\u0022fig-inline-img-wrapper\u0022\u003E\u003Cdiv class=\u0022fig-inline-img\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/15\/7\/14.1\/F1.large.jpg?width=800\u0026amp;height=600\u0026amp;carousel=1\u0022 title=\u0022Flow Chart Illustrating Patient Randomization in the StudyReproduced with permission from A Zaoui, MD.\u0022 class=\u0022fragment-images colorbox-load\u0022 rel=\u0022gallery-fragment-images-1758843067\u0022 data-figure-caption=\u0022Flow Chart Illustrating Patient Randomization in the StudyReproduced with permission from A Zaoui, MD.\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003E\u003Cimg class=\u0022fragment-image\u0022 alt=\u0022Figure 1.\u0022 src=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/15\/7\/14.1\/F1.medium.gif\u0022\/\u003E\u003C\/a\u003E\u003C\/div\u003E\u003C\/div\u003E\u003Cul class=\u0022highwire-figure-links inline\u0022\u003E\u003Cli class=\u00220 first\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/15\/7\/14.1\/F1.large.jpg?download=true\u0022 class=\u0022highwire-figure-link highwire-figure-link-download\u0022 title=\u0022Download Figure 1.\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload figure\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00221\u0022\u003E\u003Ca href=\u0022http:\/\/d282kpwvnogo5m.cloudfront.net\/content\/spmdc\/15\/7\/14.1\/F1.large.jpg\u0022 class=\u0022highwire-figure-link highwire-figure-link-newtab\u0022 target=\u0022_blank\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EOpen in new tab\u003C\/a\u003E\u003C\/li\u003E\u003Cli class=\u00222 last\u0022\u003E\u003Ca href=\u0022\/highwire\/powerpoint\/16263\u0022 class=\u0022highwire-figure-link highwire-figure-link-ppt\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EDownload powerpoint\u003C\/a\u003E\u003C\/li\u003E\u003C\/ul\u003E\u003C\/div\u003E\u003Cdiv class=\u0022fig-caption\u0022 xmlns:xhtml=\u0022http:\/\/www.w3.org\/1999\/xhtml\u0022\u003E\u003Cspan class=\u0022fig-label\u0022\u003EFigure 1.\u003C\/span\u003E \u003Cp id=\u0022p-4\u0022 class=\u0022first-child\u0022\u003EFlow Chart Illustrating Patient Randomization in the Study\u003C\/p\u003E\n\u003Cp id=\u0022p-5\u0022\u003EReproduced with permission from A Zaoui, MD.\u003C\/p\u003E\u003Cdiv class=\u0022sb-div caption-clear\u0022\u003E\u003C\/div\u003E\u003C\/div\u003E\u003C\/div\u003E\n\u003Cp id=\u0022p-6\u0022\u003EThe primary outcome of the study was femoral head penetration at a minimum of 4 years\u2019 postoperative follow-up. This was evaluated using the Martell method, by an investigator who was blinded to the study\u2019s randomization.\u003C\/p\u003E\n\u003Cp id=\u0022p-7\u0022\u003EComplete data were available for 38 hips in the metal group at a median follow-up of 4.4 years, and in 42 hips in the delta ceramic group at a median follow-up of 4.0 years. Eight patients were lost to follow-up in each group, some patients in the metal and ceramic groups were removed from the final analysis due to sepsis (4 vs 1), and additional patients were excluded for other reasons (5 vs 4).\u003C\/p\u003E\n\u003Cp id=\u0022p-8\u0022\u003EHowever, according to Dr Zaoui, at up to the 5-year follow-up, the results of this study showed no significant difference in CPE creep or wear using a metal femoral head compared with a delta ceramic head. The mean femoral head penetration was 0.14 vs 0.12 mm\/y (\u003Cem\u003EP\u003C\/em\u003E\u2005=\u2005.48), and the mean creep at the approximately 1-year follow-up was 0.27 vs 0.25 mm (\u003Cem\u003EP\u003C\/em\u003E\u2005=\u2005.56). The mean steady-state penetration rate was 0.07 vs 0.06 mm\/y (\u003Cem\u003EP\u003C\/em\u003E\u2005=\u2005.48). There were no reports of ceramic femoral head fracture or periprosthetic osteolysis in either group.\u003C\/p\u003E\n\u003Cp id=\u0022p-9\u0022\u003EAdditional studies with longer-term follow-up will be required to further evaluate the potential clinical benefits of delta ceramic as the choice of femoral component in THA, concluded Dr Zaoui.\u003C\/p\u003E\n\u003C\/div\u003E\u003Cul class=\u0022copyright-statement\u0022\u003E\u003Cli class=\u0022fn\u0022 id=\u0022copyright-statement-1\u0022\u003E\u00a9 2015 SAGE Publications\u003C\/li\u003E\u003C\/ul\u003E\u003Cspan class=\u0022highwire-journal-article-marker-end\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Cspan id=\u0022related-urls\u0022\u003E\u003C\/span\u003E\u003C\/div\u003E\u003Ca href=\u0022http:\/\/mdc.sagepub.com\/content\/15\/7\/14.1.abstract\u0022 class=\u0022hw-link hw-link-article-abstract\u0022 data-icon-position=\u0022\u0022 data-hide-link-title=\u00220\u0022\u003EView Summary\u003C\/a\u003E\u003C\/div\u003E  \u003C\/div\u003E\n\n  \n  \u003C\/div\u003E\n\u003C\/div\u003E\n  \u003C\/div\u003E\n\u003C\/div\u003E\n\u003C\/div\u003E\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_figures.js?nzlq3e\u0022\u003E\u003C\/script\u003E\n\u003Cscript type=\u0022text\/javascript\u0022 src=\u0022http:\/\/mdc.sagepub.com\/sites\/all\/modules\/highwire\/highwire\/plugins\/highwire_markup_process\/js\/highwire_openurl.js?nzlq3e\u0022\u003E\u003C\/script\u003E\n\u003C\/body\u003E\u003C\/html\u003E"}