505 lines
43 KiB
Text
505 lines
43 KiB
Text
<!DOCTYPE html>
|
||
<html class="no-js" lang="en" dir="ltr" prefix="content: http://purl.org/rss/1.0/modules/content/ dc: http://purl.org/dc/terms/ foaf: http://xmlns.com/foaf/0.1/ rdfs: http://www.w3.org/2000/01/rdf-schema# sioc: http://rdfs.org/sioc/ns# sioct: http://rdfs.org/sioc/types# skos: http://www.w3.org/2004/02/skos/core# xsd: http://www.w3.org/2001/XMLSchema#">
|
||
<head>
|
||
<title>NIH researchers uncover clues related to metal-on-metal hip implants | National Institutes of Health (NIH)</title>
|
||
<meta charset="utf-8" />
|
||
<script type="text/javascript">
|
||
//<![CDATA[
|
||
var usasearch_config = { siteHandle:"nih" };
|
||
|
||
var script = document.createElement("script");
|
||
script.type = "text/javascript";
|
||
script.src = "//search.usa.gov/javascripts/remote.loader.js";
|
||
document.getElementsByTagName("head")[0].appendChild(script);
|
||
|
||
//]]>
|
||
</script><link rel="shortcut icon" href="https://www.nih.gov/favicon.ico" type="image/vnd.microsoft.icon" />
|
||
<meta name="google-site-verification" content="rjIoO4vW0AYgltSYvxM1L_CzGIkq28kHf9gHIASKx8s" />
|
||
<link rel="profile" href="http://www.w3.org/1999/xhtml/vocab" />
|
||
<meta http-equiv="cleartype" content="on" />
|
||
<link rel="apple-touch-icon" href="https://www.nih.gov/sites/all/themes/nih/apple-touch-icon.png" />
|
||
<meta name="description" content="Lubricant in devices found to be graphite, not proteins." />
|
||
<meta name="keywords" content="NIH, metal-on-metal hip implants, Lubricant" />
|
||
<meta name="robots" content="follow, index" />
|
||
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
|
||
<meta name="generator" content="Drupal 7 (http://drupal.org)" />
|
||
<link rel="canonical" href="https://www.nih.gov/news-events/news-releases/nih-researchers-uncover-clues-related-metal-metal-hip-implants" />
|
||
<link rel="shortlink" href="https://www.nih.gov/node/12941" />
|
||
<meta http-equiv="content-language" content="EN" />
|
||
<meta property="og:site_name" content="National Institutes of Health (NIH)" />
|
||
<meta property="og:type" content="article" />
|
||
<meta property="og:title" content="NIH researchers uncover clues related to metal-on-metal hip implants" />
|
||
<meta property="og:url" content="https://www.nih.gov/news-events/news-releases/nih-researchers-uncover-clues-related-metal-metal-hip-implants" />
|
||
<meta property="og:description" content="Lubricant in devices found to be graphite, not proteins." />
|
||
<meta property="og:updated_time" content="2016-04-07T10:23:44-04:00" />
|
||
<meta name="twitter:card" content="summary_large_image" />
|
||
<meta name="twitter:url" content="https://www.nih.gov/news-events/news-releases/nih-researchers-uncover-clues-related-metal-metal-hip-implants" />
|
||
<meta name="twitter:title" content="NIH researchers uncover clues related to metal-on-metal hip implants" />
|
||
<meta name="twitter:description" content="Lubricant in devices found to be graphite, not proteins." />
|
||
<meta property="article:published_time" content="2015-07-27T23:24:18-04:00" />
|
||
<meta property="article:modified_time" content="2016-04-07T10:23:44-04:00" />
|
||
<meta name="published_date" content="2015-07-27T23:24:18-04:00" />
|
||
<meta name="last_revision" content="2016-04-07T10:23:44-04:00" />
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_PfvPCWanzn7FjDwZqwAHhPoOxYKwkQP-RZSK1pFFG0s.css" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css__mIWP9gcStq74isjZVoAAsiih8VXwJoN75Nyw_BXrj0.css" media="screen" />
|
||
<style media="print">#sb-container{position:relative;}#sb-overlay{display:none;}#sb-wrapper{position:relative;top:0;left:0;}#sb-loading{display:none;}
|
||
</style>
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_jENQOQqZCRFGZK__DTefxYiXR2RUf03k1ugj3_Vg7vk.css" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="//cdn.jsdelivr.net/qtip2/3.0.3/jquery.qtip.min.css" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_3yt-b0M1HNJsvKsXwYjh5TEtX2lJGAvJvtmVAfORYZs.css" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="//fonts.googleapis.com/css?family=Droid+Sans:700,regular|Droid+Serif:italic,regular&subset=latin" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_E4VlyxyL3JMcT6dslWLGb0uQdoI2bh_Xj0N65V-bcWo.css" media="all" />
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_5rDMv37-JxnNA70cRr_1jlAjVs56DCb8EN4XB2QLl0c.css" media="all" />
|
||
|
||
<!--[if lte IE 8]>
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_aLJB_yHt22A_mQek4IRDNsur5tEkCpqLe72j_w6QHQ0.css" media="all" />
|
||
<![endif]-->
|
||
<link type="text/css" rel="stylesheet" href="https://www.nih.gov/sites/default/files/css/css_KviiBystpJcQq4MplcQZvCFxnu9V763f5bPq_AKh4xM.css" media="all" />
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_mQAv54bz2JVXcwS5QWlz0fVY9Os67zeu9bgNqtlVLPY.js"></script>
|
||
<script src="//code.jquery.com/jquery-2.2.4.min.js"></script>
|
||
<script>window.jQuery || document.write("<script src='/sites/all/modules/contrib/jquery_update/replace/jquery/2.2/jquery.min.js'>\x3C/script>")</script>
|
||
<script>jQuery.migrateMute=true;jQuery.migrateTrace=false;</script>
|
||
<script src="//code.jquery.com/jquery-migrate-1.4.1.min.js"></script>
|
||
<script>window.jQuery && window.jQuery.migrateWarnings || document.write("<script src='/sites/all/modules/contrib/jquery_update/replace/jquery-migrate/1.4.1/jquery-migrate.min.js'>\x3C/script>")</script>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_9sGTPBGcOGZjLiSLGrYEnuUf8VdvLmL_DEZNNNbnHXk.js"></script>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_hNnF7a_sbk6nZ2-mOamHzalYND7HBHDLRInsaU93HDk.js"></script>
|
||
<script>document.createElement( "picture" );</script>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_gHk2gWJ_Qw_jU2qRiUmSl7d8oly1Cx7lQFrqcp3RXcI.js"></script>
|
||
<script src="//cdn.jsdelivr.net/qtip2/3.0.3/jquery.qtip.min.js"></script>
|
||
<script defer="defer" src="//script.crazyegg.com/pages/scripts/0011/2616.js"></script>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_3s0l7MQ3oYmGkNAypyzCJq3a0wT85XX_P1SLgnph5K4.js"></script>
|
||
<script>
|
||
Shadowbox.path = "/sites/all/libraries/shadowbox/";
|
||
</script>
|
||
<script>jQuery.extend(Drupal.settings, {"basePath":"\/","pathPrefix":"","setHasJsCookie":0,"instances":"{\u0022default\u0022:{\u0022content\u0022:{\u0022text\u0022:\u0022\u0022},\u0022style\u0022:{\u0022tip\u0022:false,\u0022classes\u0022:\u0022\u0022},\u0022position\u0022:{\u0022at\u0022:\u0022bottom right\u0022,\u0022adjust\u0022:{\u0022method\u0022:\u0022\u0022},\u0022my\u0022:\u0022top left\u0022,\u0022viewport\u0022:false},\u0022show\u0022:{\u0022event\u0022:\u0022mouseenter \u0022},\u0022hide\u0022:{\u0022event\u0022:\u0022mouseleave \u0022}}}","qtipDebug":"{\u0022leaveElement\u0022:0}","shadowbox":{"animate":true,"animateFade":true,"animSequence":"wh","auto_enable_all_images":1,"auto_gallery":1,"autoplayMovies":true,"continuous":false,"counterLimit":10,"counterType":"default","displayCounter":true,"displayNav":true,"enableKeys":true,"fadeDuration":0.34999999999999998,"handleOversize":"resize","handleUnsupported":"link","initialHeight":160,"initialWidth":320,"language":"en","modal":false,"overlayColor":"#000","overlayOpacity":0.80000000000000004,"resizeDuration":0.55000000000000004,"showMovieControls":true,"slideshowDelay":0,"viewportPadding":20,"useSizzle":false},"picture":{"mappings":[["Sidebar media mappings","sidebar_media_mappings"],["Floated media mappings","floated_media_mappings"],["Not Set","not_set"]],"label":"Image size (required)"},"extlink":{"extTarget":"_blank","extClass":"ext","extLabel":"(link is external)","extImgClass":0,"extIconPlacement":0,"extSubdomains":1,"extExclude":"(.\\.nih\\.gov.)|(.\\.cancer\\.gov.)|(.\\.genome\\.gov.)|(.\\.drugabuse\\.gov.)|(locatorplus\\.gov.)|(.\\.govdelivery\\.com.)|(.\\.hatchbuck\\.com.)|(nihseniorhealth\\.gov.)|(clinicaltrials\\.gov.)|(search\\.usa\\.gov\\\/search\\?affiliate\\=hip.)|(search\\.gov\\\/search\\?affiliate\\=hip.)|(drugabuse\\.gov.)|(medlineplus\\.gov.)|(collegedrinkingprevention\\.gov.)|(smokefree\\.gov.)|(arpa-h\\.gov.)|(nih\\.sharepoint\\.com)","extInclude":"(.\\.pagefreezer\\.com.)","extCssExclude":".media, .emergency-message, .slideshow-main, .bean-home-slideshow-2l-block","extCssExplicit":"","extAlert":"_blank","extAlertText":"You are leaving the NIH website.\r\n\r\nThis external link provides additional information that is consistent with the intended purpose of this site. NIH cannot attest to the accuracy of a non-federal site.\r\n\r\nLinking to a non-federal site does not constitute an endorsement by NIH or any of its employees of the sponsors or the information and products presented on the site. You will be subject to the destination site\u2019s privacy policy when you follow the link.","mailtoClass":"mailto","mailtoLabel":"(link sends e-mail)","extUseFontAwesome":0}});</script>
|
||
|
||
<script type="application/javascript" id="uws-snippet">
|
||
// Verint Unified WebSDK Integration Snippet v2.3
|
||
//
|
||
// Instructions: please embed this snippet directly into every page of your website template.
|
||
// For optimal performance, this should be embedded directly into the template, not referenced as
|
||
// an external file.
|
||
//
|
||
// DO NOT MODIFY BELOW THIS LINE *****************************************
|
||
(function () {
|
||
var cookies = document.cookie.split("; ").reduce(function (o, i) { var p = i.split("="); o[p[0]] = p[1]; return o; }, {});
|
||
var containerValue = cookies.uws_container_override && JSON.parse(decodeURIComponent(cookies.uws_container_override));
|
||
var config = {
|
||
moduleHost: "ucm-us.verint-cdn.com",
|
||
configHost: "ucm-us.verint-cdn.com",
|
||
siteKey: "nih-gov",
|
||
container: containerValue || "live",
|
||
loadTime: Date.now()
|
||
};
|
||
var readyCallbacks = []; window.uwsReady = function (callback) { readyCallbacks.push(callback); };
|
||
var sdkPath = "//" + [config.moduleHost, "files/sites", config.siteKey, config.container, "sdk.js"].join("/");
|
||
var script = document.createElement("script"); script.src = sdkPath; script.async = true; script.type = "module";
|
||
script.addEventListener("load", function () { window.unifiedSDK.start(config, readyCallbacks); });
|
||
document.head.appendChild(script);
|
||
})();
|
||
// DO NOT MODIFY ABOVE THIS LINE *****************************************
|
||
</script>
|
||
|
||
</head>
|
||
<body class="html not-front not-logged-in page-node page-node- page-node-12941 node-type-nih-news-release section-news-events">
|
||
<a href="#main-content" class="element-invisible element-focusable">Skip to main content</a>
|
||
<noscript aria-hidden="true"><iframe src="https://www.googletagmanager.com/ns.html?id=GTM-5CBCNW2" height="0" width="0" style="display:none;visibility:hidden"></iframe></noscript>
|
||
<div class="l-page has-one-sidebar has-sidebar-second">
|
||
|
||
<div class="l-page-content">
|
||
|
||
<header class="l-header" role="banner">
|
||
<div class="l-ribbon-wrapper">
|
||
<ul class="l-ribbon">
|
||
<li><span class="ribbon-hhs"></span><a href="https://www.hhs.gov">U.S. Department of Health & Human Services</a><span class="ribbon-right"></span></li>
|
||
</ul>
|
||
</div> <div class="l-banner-wrapper">
|
||
<div class="l-banner">
|
||
<div class="l-branding">
|
||
<a class="nih-logo icon-nih-logo" href="/" title="National Institutes of Health (NIH) - Turning Discovery into Health" rel="home"><img src="/sites/all/themes/nih/images/nih-logo-color.png" width="390" height="60" alt="National Institutes of Health (NIH) - Turning Discovery into Health" /></a>
|
||
</div>
|
||
<!-- DigitalGov Search -->
|
||
<form accept-charset="UTF-8" action="https://search.nih.gov/search" id="search" class="search-form site-search" method="get">
|
||
<div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="✓" /></div>
|
||
<input id="affiliate" name="affiliate" type="hidden" value="nih" />
|
||
<label for="query" class="hide">Search the NIH Website</label>
|
||
<input autocomplete="on" class="usagov-search-autocomplete form-field form-field-site-search" id="query" name="query" type="text" placeholder="Search NIH" /><input type="submit" name="commit" value="Search" class="form-button form-button-site-search" />
|
||
</form>
|
||
<ul class="banner-utilities">
|
||
<li><a href="/virtual-tour">Virtual Tour</a></li>
|
||
<li><a href="https://ned.nih.gov/">Staff Directory</a></li>
|
||
<li><a href="https://salud.nih.gov">En Español</a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</header>
|
||
|
||
<div class="l-navigation-wrapper">
|
||
<!-- ****************** SITE MENU ****************** -->
|
||
<h2 class="element-invisible">Site Menu</h2>
|
||
<nav class="l-menu-wrapper">
|
||
<ul class="l-menu">
|
||
<!-- ********* HOME TAB (Mobile view only) ********* -->
|
||
<li class="tab-wrapper tab-wrapper-home">
|
||
<div class="tab home"><a href="/"><span>Home</span></a></div>
|
||
</li>
|
||
<!-- ********* HEALTH INFO TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-healthinfo tab-wrapper-left">
|
||
<div class="tab"><a href="/health-information"><span>Health Information</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul class="sub-menu">
|
||
<li><a href="https://www.hhs.gov/programs/social-services/health-care-facilities/index.html">Health Care Providers & Facilities</a></li>
|
||
<li><a href="/health-information/health-info-lines">Health Info Lines</a></li>
|
||
<li><a href="https://www.healthcare.gov">HealthCare.gov</a></li>
|
||
<li><a href="/research-training/science-education">Science Education Resources</a></li>
|
||
<li><a href="/health-information/nih-clinical-research-trials-you">NIH Clinical Research Trials and You</a></li>
|
||
<li><a href="/institutes-nih/nih-office-director/office-communications-public-liaison/clear-communication/talking-your-doctor">Talking to Your Doctor</a></li>
|
||
<!--<li><a href="/institutes-nih/nih-office-director/office-communications-public-liaison/clear-communication/clear-health-nih" title="">Clear Health A–Z</a></li>-->
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/health-information" title="More Health Information">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<form id="hipsearch" accept-charset="UTF-8" action="https://search.nih.gov/search" method="get" class="search-form">
|
||
<p class="subhead"><label for="query2">Search Health Topics</label></p>
|
||
<div class="input-wrapper">
|
||
<div style="margin:0;padding:0;display:inline"><input name="utf8" type="hidden" value="✓" /></div>
|
||
<input id="affiliate" name="affiliate" type="hidden" value="hip" />
|
||
<input type="hidden" name="dc" value="940" />
|
||
<input autocomplete="on" maxlength="50" class="usagov-search-autocomplete form-field form-field-search" id="query2" name="query" type="text" />
|
||
<input name="commit" type="submit" value="Go" id="searchbutton" class="form-button" />
|
||
</div>
|
||
</form>
|
||
<p class="subhead">Quick Links</p>
|
||
<ul class="sub-menu">
|
||
<li><a class="minibadge minibadge-medlineplus" href="https://medlineplus.gov/"><span class="minibadge-text">MedlinePlus Health Info</span></a></li>
|
||
<li><a class="minibadge minibadge-newsinhealth" href="https://newsinhealth.nih.gov/"><span class="minibadge-text">NIH News in Health</span></a></li>
|
||
<li><a class="minibadge minibadge-wellnesstoolkits" href="/health-information/your-healthiest-self-wellness-toolkits"><span class="minibadge-text">Wellness Toolkits</span></a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<!-- ********* GRANTS TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-grants tab-wrapper-left">
|
||
<div class="tab"><a href="/grants-funding"><span>Grants & Funding</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul>
|
||
<li><a href="https://grants.nih.gov">Grants Home Page</a></li>
|
||
<li><a href="https://grants.nih.gov/funding/index.htm">Find Funding</a></li>
|
||
<li><a href="https://grants.nih.gov/grants/how-to-apply-application-guide/due-dates-and-submission-policies/due-dates.htm">Due Dates</a></li>
|
||
<li><a href="https://grants.nih.gov/grants/how-to-apply-application-guide.html">How to Apply</a></li>
|
||
<li><a href="https://grants.nih.gov/grants/about_grants.htm">About Grants</a></li>
|
||
<li><a href="https://grants.nih.gov/policy/index.htm">Policy & Compliance</a></li>
|
||
<li><a href="https://nexus.od.nih.gov/all/">Grants News/Blog</a></li>
|
||
<li><a href="https://grants.nih.gov/funding/contracts.htm">Contracts</a></li>
|
||
<li><a href="https://www.lrp.nih.gov/">Loan Repayment</a></li>
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/grants-funding" title="More Grants & Funding Information">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<p class="subhead">Quick Links</p>
|
||
<ul>
|
||
<li><a class="minibadge minibadge-report" href="https://report.nih.gov/"><span class="minibadge-text">RePORT</span></a></li>
|
||
<li><a class="minibadge minibadge-era" href="https://commons.era.nih.gov/commons/"><span class="minibadge-text">eRA Commons</span></a></li>
|
||
<li><a class="minibadge minibadge-commonfund" href="https://commonfund.nih.gov/"><span class="minibadge-text">NIH Common Fund</span></a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<!-- ********* NEWS TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-news tab-wrapper-left">
|
||
<div class="tab"><a href="/news-events"><span>News & Events</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul>
|
||
<li><a href="/news-events/news-releases">News Releases</a></li>
|
||
<li><a href="/news-events/digital-media-kits">Digital Media Kits</a></li>
|
||
<li><a href="/news-events/media-resources">Media Resources</a></li>
|
||
<li><a href="/news-events/media-contacts">Media Contacts</a></li>
|
||
<li><a href="/news-events/images-b-roll">Images and B-roll</a></li>
|
||
<li><a href="/news-events/events">Events</a></li>
|
||
<li><a href="/news-events/social-media-outreach">Social Media</a></li>
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/news-events" title="More News & Events">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<p class="subhead">Quick Links</p>
|
||
<ul>
|
||
<li><a class="minibadge minibadge-newsinhealth" href="https://newsinhealth.nih.gov/"><span class="minibadge-text">NIH News in Health</span></a></li>
|
||
<li><a class="minibadge minibadge-researchmatters" href="/news-events/nih-research-matters"><span class="minibadge-text">NIH Research Matters</span></a></li>
|
||
<li><a class="minibadge minibadge-nihrecord" href="https://nihrecord.nih.gov/"><span class="minibadge-text">NIH Record</span></a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<!-- ********* RESEARCH TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-research tab-wrapper-right">
|
||
<div class="tab"><a href="/research-training"><span>Research & Training</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul>
|
||
<li><a href="/research-training/medical-research-initiatives">Medical Research Initiatives</a></li>
|
||
<li><a href="/research-training/science-highlights">Science Highlights</a></li>
|
||
<li><a href="/research-training/science-education">Science Education</a></li>
|
||
<li><a href="/research-training/research-nih-labs-clinics">Research in NIH Labs & Clinics</a></li>
|
||
<li><a href="/research-training/training-opportunities">Training Opportunities</a></li>
|
||
<li><a href="/research-training/library-resources">Library Resources</a></li>
|
||
<li><a href="/research-training/research-resources">Research Resources</a></li>
|
||
<li><a href="/research-training/clinical-research-resources">Clinical Research Resources</a></li>
|
||
<li><a href="/research-training/safety-regulation-guidance">Safety, Regulation and Guidance</a></li>
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/research-training" title="More Research & Training">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<p class="subhead">Quick Links</p>
|
||
<ul>
|
||
<li><a class="minibadge minibadge-pubmed" href="https://pubmed.ncbi.nlm.nih.gov"><span class="minibadge-text">PubMed</span></a></li>
|
||
<li><a class="minibadge minibadge-stemcell" href="https://stemcells.nih.gov"><span class="minibadge-text">Stem Cell Information</span></a></li>
|
||
<li><a class="minibadge minibadge-oppnet" href="https://oppnet.nih.gov"><span class="minibadge-text">OppNet</span></a></li>
|
||
<li><a class="minibadge minibadge-nidb" href="https://intramural.nih.gov"><span class="minibadge-text">NIDB</span></a></li>
|
||
<li><a class="minibadge minibadge-nihblueprint" href="https://neuroscienceblueprint.nih.gov"><span class="minibadge-text">NIH Blueprint for Neuroscience Research</span></a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<!-- ********* INSTITUTES TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-institutes tab-wrapper-right">
|
||
<div class="tab"><a href="/institutes-nih"><span>Institutes at NIH</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul>
|
||
<li><a href="/institutes-nih/list-institutes-centers">List of Institutes and Centers</a></li>
|
||
<li><a href="/institutes-nih/nih-office-director">NIH Office of the Director</a></li>
|
||
<li><a href="/institutes-nih/directors-nih-institutes-centers">Directors of NIH Institutes and Centers</a></li>
|
||
<li><a href="/institutes-nih/nih-institute-center-contact-information">NIH Institute and Center Contact Information</a></li>
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/institutes-nih" title="More About the Institutes at NIH">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<p class="subhead">Quick Links</p>
|
||
<ul class="ic-acronymn-list">
|
||
<li><a href="https://www.cancer.gov" title="National Cancer Institute">NCI</a></li>
|
||
<li><a href="https://nei.nih.gov" title="National Eye Institute">NEI</a></li>
|
||
<li><a href="https://www.nhlbi.nih.gov" title="National Heart, Lung, and Blood Institute">NHLBI</a></li>
|
||
<li><a href="https://www.genome.gov" title="National Human Genome Research Institute">NHGRI</a></li>
|
||
<li><a href="https://www.nia.nih.gov" title="National Institute on Aging">NIA</a></li>
|
||
<li><a href="https://www.niaaa.nih.gov" title="National Institute on Alcohol Abuse and Alcoholism">NIAAA</a></li>
|
||
<li><a href="https://www.niaid.nih.gov" title="National Institute of Allergy and Infectious Diseases">NIAID</a></li>
|
||
<li><a href="https://www.niams.nih.gov" title="National Institute of Arthritis and Musculoskeletal and Skin Diseases">NIAMS</a></li>
|
||
<li><a href="https://www.nibib.nih.gov" title="National Institute of Biomedical Imaging and Bioengineering">NIBIB</a></li>
|
||
<li><a href="https://www.nichd.nih.gov" title="Eunice Kennedy Shriver National Institute of Child Health and Human Development">NICHD</a></li>
|
||
<li><a href="https://www.nidcd.nih.gov" title="National Institute on Deafness and Other Communication Disorders">NIDCD</a></li>
|
||
<li><a href="https://www.nidcr.nih.gov" title="National Institute of Dental and Craniofacial Research">NIDCR</a></li>
|
||
<li><a href="https://www.niddk.nih.gov" title="National Institute of Diabetes and Digestive and Kidney Diseases">NIDDK</a></li>
|
||
<li><a href="https://nida.nih.gov" title="National Institute on Drug Abuse">NIDA</a></li>
|
||
<li><a href="https://www.niehs.nih.gov" title="National Institute of Environmental Health Sciences">NIEHS</a></li>
|
||
<li><a href="https://www.nigms.nih.gov" title="National Institute of General Medical Sciences">NIGMS</a></li>
|
||
<li><a href="https://www.nimh.nih.gov" title="National Institute of Mental Health">NIMH</a></li>
|
||
<li><a href="https://www.nimhd.nih.gov" title="National Institute on Minority Health and Health Disparities">NIMHD</a></li>
|
||
<li><a href="https://www.ninds.nih.gov" title="National Institute of Neurological Disorders and Stroke">NINDS</a></li>
|
||
<li><a href="https://www.ninr.nih.gov" title="National Institute of Nursing Research">NINR</a></li>
|
||
<li><a href="https://www.nlm.nih.gov" title="National Library of Medicine">NLM</a></li>
|
||
<li><a href="https://www.cc.nih.gov" title="NIH Clinical Center">CC</a></li>
|
||
<li><a href="https://www.cit.nih.gov" title="Center for Information Technology">CIT</a></li>
|
||
<li><a href="https://www.csr.nih.gov" title="Center for Scientific Review">CSR</a></li>
|
||
<li><a href="https://www.fic.nih.gov" title="Fogarty International Center">FIC</a></li>
|
||
<li><a href="https://ncats.nih.gov" title="National Center for Advancing Translational Sciences">NCATS</a></li>
|
||
<li><a href="https://nccih.nih.gov" title="National Center for Complementary and Integrative Health">NCCIH</a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
<!-- ********* ABOUT TAB ********* -->
|
||
<li class="tab-wrapper tab-wrapper-about tab-wrapper-right">
|
||
<div class="tab"><a href="/about-nih"><span>About NIH</span></a></div>
|
||
<div class="megamenu">
|
||
<div class="megamenu-col megamenu-leftcol">
|
||
<ul>
|
||
<li><a href="/about-nih/who-we-are">Who We Are</a></li>
|
||
<li><a href="/about-nih/what-we-do">What We Do</a></li>
|
||
<li><a href="https://hr.nih.gov/jobs">Jobs at NIH</a></li>
|
||
<li><a href="/about-nih/visitor-information">Visitor Information</a></li>
|
||
<li><a href="/about-nih/frequently-asked-questions">Frequently Asked Questions</a></li>
|
||
<li><a href="/about-nih/contact-us">Contact Us</a></li>
|
||
<!--<li><a href="/about-nih/explore-nih">Explore NIH</a></li>-->
|
||
</ul>
|
||
<p class="more-wrapper"><a class="button gold" href="/about-nih" title="More About NIH">More »</a></p>
|
||
</div>
|
||
<div class="megamenu-col megamenu-rightcol">
|
||
<p class="subhead">Quick Links</p>
|
||
<ul>
|
||
<li><a href="/about-nih/who-we-are/nih-director">The NIH Director</a></li>
|
||
<li><a href="/virtual-tour">Take the Virtual Tour</a></li>
|
||
<li><a href="/about-nih/what-we-do/nih-turning-discovery-into-health">NIH…Turning Discovery Into Health<sup>®</sup></a></li>
|
||
<li><a href="/about-nih/what-we-do/impact-nih-research">Impact of NIH Research</a></li>
|
||
<li><a href="/about-nih/what-we-do/science-health-public-trust">Science, Health, and Public Trust</a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</li>
|
||
</ul>
|
||
<div class="tab-bkgnd"></div><!-- For pixel rounding issue -->
|
||
</nav>
|
||
<!-- ****************** END SITE MENU ****************** -->
|
||
</div>
|
||
|
||
<div class="l-main-wrapper">
|
||
<div class="l-main" id="page-content">
|
||
<h2 class="element-invisible">You are here</h2><div class="breadcrumb"><a href="/">Home</a> » <a href="/news-events">News & Events</a> » <a href="/news-events/news-releases">News Releases</a></div> <div class="l-region l-region--section-header">
|
||
<div id="block-block-96" class="block block--block sectionheader block--block-96" id="block-block-96" class="block block--block sectionheader block--block-96">
|
||
|
||
|
||
<div class="content" class="block__content">
|
||
<h2><a href="/news-events/news-releases">News Releases</a></h2> </div>
|
||
</div>
|
||
</div>
|
||
<div class="l-content-wrapper">
|
||
<div class="l-content" role="main">
|
||
<a id="main-content"></a>
|
||
<div about="/news-events/news-releases/nih-researchers-uncover-clues-related-metal-metal-hip-implants" typeof="sioc:Item foaf:Document" class="ds-1col node node--nih-news-release arra view-mode-full node--full node--nih-news-release--full clearfix">
|
||
|
||
|
||
<p class="publishdate"><span class="tag-term">ARRA</span></p><p class="publishdate"><span property="dc:date" datatype="xsd:dateTime" content="2011-12-22T14:00:00-05:00" class="date-display-single">Thursday, December 22, 2011</span></p><h1>NIH researchers uncover clues related to metal-on-metal hip implants</h1><p class="subtitle">
|
||
Lubricant in devices found to be graphite, not proteins.</p><div class="featured-media"><div class="ds-1col file file-image file-image-jpeg view-mode-featured_media clearfix">
|
||
|
||
|
||
<picture title="Graphic of hip showing metal-on-metal implant.">
|
||
<!--[if IE 9]><video style="display: none;"><![endif]-->
|
||
<source srcset="https://www.nih.gov/sites/default/files/styles/featured_media_breakpoint-large-extra/public/news-events/news-releases/2011/20111222-hip.jpg?itok=VXKD-JQ-&timestamp=1439236523 1x" media="screen and (min-width: 1100px)" />
|
||
<source srcset="https://www.nih.gov/sites/default/files/styles/featured_media_breakpoint-large/public/news-events/news-releases/2011/20111222-hip.jpg?itok=FPgQCiC5&timestamp=1439236523 1x" media="screen and (min-width: 960px)" />
|
||
<source srcset="https://www.nih.gov/sites/default/files/styles/featured_media_breakpoint-medium/public/news-events/news-releases/2011/20111222-hip.jpg?itok=ApgQtTcc&timestamp=1439236523 1x" media="screen and (min-width: 800px)" />
|
||
<source srcset="https://www.nih.gov/sites/default/files/styles/featured_media_breakpoint-medium-small/public/news-events/news-releases/2011/20111222-hip.jpg?itok=D5arrttI&timestamp=1439236523 1x" media="screen and (min-width: 600px)" />
|
||
<source srcset="https://www.nih.gov/sites/default/files/styles/featured_media_breakpoint-small/public/news-events/news-releases/2011/20111222-hip.jpg?itok=r74gmozi&timestamp=1439236523 1x" media="screen and (min-width: 480px)" />
|
||
<source srcset="https://www.nih.gov/sites/default/files/styles/featured_media__breakpoint-tiny_/public/news-events/news-releases/2011/20111222-hip.jpg?itok=0PNlwCft&timestamp=1439236523 1x" media="screen and (min-width: 0)" />
|
||
<!--[if IE 9]></video><![endif]-->
|
||
<img src="https://www.nih.gov/sites/default/files/styles/featured_media_breakpoint-medium/public/news-events/news-releases/2011/20111222-hip.jpg?itok=ApgQtTcc&timestamp=1439236523" alt="Graphic of hip showing metal-on-metal implant." title="Graphic of hip showing metal-on-metal implant." />
|
||
</picture><span class="caption">X-ray of the hip region with a metal-on-metal implant superimposed.</span></div>
|
||
|
||
</div><p>A new study, bringing together an interdisciplinary team of physicians and engineers from the United States and Germany, made a surprising finding about implants used in hip replacement surgery: Graphite carbon is a key element in the lubricating layer that forms on metal-on-metal hip implants. The lubricant has more in common with the lubrication of a combustion engine than that of a natural joint. The study was funded by the National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS), part of the National Institutes of Health.</p>
|
||
|
||
<p>Made possible by an American Recovery and Reinvestment Act grant and to be reported online in the Dec. 23 issue of Science, "This finding opens new avenues of investigation to help scientists understand how joint implants function, and to develop strategies to make them function better," said NIAMS Director Stephen I. Katz, M.D., Ph.D. "The results of such research could have important implications for several hundred thousand Americans who undergo hip replacement each year — as well as those who could benefit from the procedure, but have been advised by their doctors to delay surgery until they are older."</p>
|
||
|
||
<p>Touted as one of the greatest advances in arthritis treatment in history, hip replacement involves removing the damaged hip and replacing it with a prosthesis to mimic the natural ball-in-socket joint.</p>
|
||
|
||
<p>"For most people, the procedure brings relief from pain and a return to normal function for the life of the prosthesis, typically more than 10 years," said Joshua J. Jacobs, M.D., lead investigator and chair of the Department of Orthopaedic Surgery at Rush University Medical Center in Chicago. But for younger, more active people, the prostheses' limited longevity often means postponing surgery — often for a number of years, or having the surgery and facing the prospect of a more difficult repeat surgery at some point when the prosthesis fails. For that reason, scientists have sought ways to improve the materials used.</p>
|
||
|
||
<p>One such way has been to design components with only metal-bearing surfaces (so called metal-on-metal implants) rather than a combination of metal- and polyethylene-bearing surfaces that were used almost exclusively prior to the 1990s, and tended to break down over time. But metal-on-metal implants, too, have issues.</p>
|
||
|
||
<p>"We know there are metal-on-metal systems that have not performed well," said Jacobs. “Problematic devices have tended to release more metal debris through wear and corrosion than devices that have performed well. This debris can cause a local tissue response involving the bone, ligaments, tendons and muscles around the hip.”</p>
|
||
|
||
<p>To better understand what happens in the artificial joints — and consequently what might be improved upon — the scientist turned to metal joint components that had been removed in revision surgeries and a science called tribology, which focuses on the phenomenon of friction, lubrication and wear.</p>
|
||
|
||
<p>Earlier research by team members Alfons Fischer, Ph.D., professor of materials science and engineering at the University of Duisburg-Essen, Germany, and Markus Wimmer, Ph.D., associate professor of orthopaedic surgery also at Rush, revealed that a lubricating layer forms on metallic joints as a result of friction.</p>
|
||
|
||
<p>"There is good reason to believe that those layers form a barrier to wear and corrosion on the surfaces of these implants, so it certainly would behoove us to understand the nature of these tribological reaction layers — what they are made of, how they form, etc. — so that we may be able to use this information to design metal-on-metal bearings going forward that are far less susceptible to corrosion and wear," said Wimmer.</p>
|
||
|
||
<p>While researchers knew little about the layer, they assumed that it was from proteins in the body that entered the joint and somehow adhered to the surface of the implant. As such, it would be, similar to lubrication in natural joints.</p>
|
||
|
||
<p>Instead, the scientists found that the layer actually consists, at least in part — and perhaps in large part — of graphitic carbon, a solid lubricant with industrial applications. "This was quite a surprise, but the moment we realized what had happened, many things suddenly started to make sense," said Laurence Marks, Ph.D., professor of materials science and engineering at Northwestern University, whose team led the experimental effort. "Knowing that the structure is graphitic carbon really opens up the possibility that we may be able to manipulate the system in such a way as to produce graphitic surfaces. We now have a target for how we can improve the performance of these devices," said Fischer. Marks is equally optimistic. "Nowadays we can design new alloys to go in racing cars, so we should be able to do this for implants that go into human beings."</p>
|
||
|
||
<p>The next phase, Jacobs said, is to relate that finding with clinical outcomes — by examining the surfaces of retrieved devices and correlating the observations with the reason for removal. Marks also hopes to learn how cells are affected if the graphite flakes off.</p>
|
||
|
||
<p>"As good as hip replacements are for people in their 60s and 70s, for people who are younger, and more active, there are still question marks," said Jacobs. "We are making a lot of demands on the materials we are using if we want them to last 30 or 40 years."</p>
|
||
|
||
<p>For more information on hip replacement, visit <a href="http://www.niams.nih.gov/Health_Info/Hip_Replacement/default.asp">http://www.niams.nih.gov/Health_Info/Hip_Replacement/default.asp</a>.</p>
|
||
|
||
<p>The mission of the NIAMS, a part of the U.S. Department of Health and Human Services' National Institutes of Health, is to support research into the causes, treatment and prevention of arthritis and musculoskeletal and skin diseases; the training of basic and clinical scientists to carry out this research; and the dissemination of information on research progress in these diseases. For more information about the NIAMS, call the information clearinghouse at (301) 495-4484 or (877) 22-NIAMS (free call) or visit the NIAMS website at <a href="http://www.niams.nih.gov">http://www.niams.nih.gov</a>.</p>
|
||
|
||
<p>The activities described in this release are funded in part through the American Recovery and Reinvestment Act. More information about NIH’s Recovery Act grant funding opportunities can be found at <a href="http://grants.nih.gov/recovery/">http://grants.nih.gov/recovery</a>. To track the progress of HHS activities funded through the Recovery Act, visit www.hhs.gov/recovery. To track all federal funds provided through the Recovery Act, visit <a href="http://www.recovery.gov">www.recovery.gov</a>.</p>
|
||
<p><strong>About the National Institutes of Health (NIH):</strong>
|
||
NIH, the nation's medical research agency, includes 27 Institutes and Centers and is a component of the U.S. Department of Health and Human Services. NIH is the primary federal agency conducting and supporting basic, clinical, and translational medical research, and is investigating the causes, treatments, and cures for both common and rare diseases. For more information about NIH and its programs, visit <a href="/">www.nih.gov</a>.</p>
|
||
|
||
<p class="slogan"><em>NIH…Turning Discovery Into Health<sup>®</sup></em></p><p
|
||
class='hashtags'>###</p>
|
||
|
||
|
||
</div>
|
||
|
||
<div class="lastupdated">
|
||
</div> </div>
|
||
<aside class="l-region l-region--sidebar-second masonry-container">
|
||
<div id="block-ds-extras-nih-news-release-page-ds" class="block block--ds-extras block--ds-extras-nih-news-release-page-ds" id="block-ds-extras-nih-news-release-page-ds" class="block block--ds-extras block--ds-extras-nih-news-release-page-ds">
|
||
|
||
|
||
<div class="content" class="block__content">
|
||
<div class="box"><h3 class="label-above">Institute/Center</h3><p><a href="http://www.niams.nih.gov/">National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)</a></p></div><div class="box"><h3 class="label-above">Contact</h3><div class="paragraph">
|
||
<div class="field--contact-name">
|
||
<a href="mailto:patricia.reynolds@nih.gov">Trish Reynolds</a> </div>
|
||
|
||
<div class="field--contact-number">
|
||
301-496-8190 </div>
|
||
</div></div > </div>
|
||
</div>
|
||
<div id="block-bean-news-releases-connect-with-us" class="block block--bean box block--bean-news-releases-connect-with-us" id="block-bean-news-releases-connect-with-us" class="block block--bean box block--bean-news-releases-connect-with-us">
|
||
|
||
<h3 class="block__title">Connect with Us</h3>
|
||
|
||
<div class="content" class="block__content">
|
||
<div about="/block/news-releases---connect-with-us" class="ds-1col entity entity-bean bean-basic-block view-mode-default clearfix">
|
||
|
||
|
||
<ul class="icon-list">
|
||
<li><a class="icon-link email-monochrome" href="https://service.govdelivery.com/accounts/USNIH/subscriber/new?topic_id=USNIH_1" onclick="window.open(this.href,'popup','width=725,height=500,left=25,top=25,location=no,resizable=yes,scrollbars=yes,status=yes');return false;" target="_blank" title="Subscribe."><span class="icon"></span>Subscribe to news releases</a></li>
|
||
<li><a class="icon-link rss-monochrome" href="/news-releases/feed.xml"><span class="icon"></span>RSS Feed</a></li>
|
||
</ul></div>
|
||
|
||
</div>
|
||
</div>
|
||
</aside>
|
||
</div>
|
||
<div class="l-connect-wrapper">
|
||
<div class="l-connect">
|
||
<h2 class="element-invisible">Connect with Us</h2>
|
||
<ul>
|
||
<li><a class="contactus-monochrome" href="/about-nih/contact-us"><span class="icon"></span>Contact Us</a></li>
|
||
<li><a class="twitter-monochrome" href="https://twitter.com/NIH"><span class="icon"></span>X</a></li>
|
||
<li><a class="facebook-monochrome" href="https://www.facebook.com/nih.gov"><span class="icon"></span>Facebook</a></li>
|
||
<li><a class="instagram-monochrome" href="https://www.instagram.com/nihgov/"><span class="icon"></span>Instagram</a></li>
|
||
<li><a class="youtube-monochrome" href="https://www.youtube.com/user/nihod"><span class="icon"></span>YouTube</a></li>
|
||
<li><a class="flickr-monochrome" href="https://www.flickr.com/photos/nihgov/"><span class="icon"></span>Flickr</a></li>
|
||
<li><a class="social-monochrome" href="/news-events/social-media-outreach"><span class="icon"></span>More Social Media from NIH</a></li>
|
||
</ul>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
</div>
|
||
|
||
<div class="l-footer-wrapper">
|
||
<footer class="l-footer" role="contentinfo">
|
||
<h2 class="element-invisible">Footer</h2>
|
||
<ul>
|
||
<li><a href="/">NIH Home</a></li>
|
||
<li><a href="/virtual-tour">Virtual Tour</a></li>
|
||
<li><a href="https://salud.nih.gov">En Español</a></li>
|
||
<li><a href="/about-nih/visitor-information">Visitor Information</a></li>
|
||
<li><a href="/about-nih/frequently-asked-questions">Frequently Asked Questions</a></li>
|
||
<li><a href="/privacy-policy">Privacy Policy</a></li>
|
||
<li><a href="/disclaimers">Disclaimers</a></li>
|
||
<li><a href="/accessibility">Accessibility</a></li>
|
||
<li><a href="/nih-website-archives">NIH Website Archives</a></li>
|
||
</ul>
|
||
<ul>
|
||
<li><a href="/nondiscrimination-notice">Nondiscrimination Notice</a></li>
|
||
<li><a href="/institutes-nih/nih-office-director/office-communications-public-liaison/freedom-information-act-office">Freedom of Information Act</a></li>
|
||
<li><a href="https://www.edi.nih.gov/no-fear-act">No Fear Act</a></li>
|
||
<li><a href="https://www.hhs.gov/vulnerability-disclosure-policy/index.html">HHS Vulnerability Disclosure</a></li>
|
||
<li><a href="https://oig.hhs.gov">Office of Inspector General</a></li>
|
||
<li><a class="lastTab" href="https://www.usa.gov/">USA.gov</a></li>
|
||
</ul>
|
||
<p>NIH…Turning Discovery Into Health<sup>®</sup></p>
|
||
<p>National Institutes of Health, 9000 Rockville Pike, Bethesda, Maryland 20892</p>
|
||
<p><a href="https://www.hhs.gov">U.S. Department of Health and Human Services</a></p>
|
||
</footer>
|
||
</div>
|
||
|
||
<div class="back-to-top"><a href="#"><span class="icon-arrow-up"></span><span class="text">Back to Top</span></a></div>
|
||
|
||
</div>
|
||
|
||
</div>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_7Ukqb3ierdBEL0eowfOKzTkNu-Le97OPm-UqTS5NENU.js"></script>
|
||
<script src="https://www.nih.gov/sites/default/files/js/js_E9yUYWK8EMydR0HMIp2PahVxPAClXyH0Cnh782A15UM.js"></script>
|
||
</body>
|
||
</html>
|
||
|