{"id":2802,"date":"2024-09-03T14:41:12","date_gmt":"2024-09-03T12:41:12","guid":{"rendered":"https:\/\/endolab.org\/?post_type=hip-implants&#038;p=2802"},"modified":"2025-12-08T16:08:08","modified_gmt":"2025-12-08T15:08:08","slug":"astm-f3446","status":"publish","type":"hip-implants","link":"https:\/\/endolab.org\/de\/hip-implants\/astm-f3446\/","title":{"rendered":"ASTM F3446"},"content":{"rendered":"<p><strong>ASTM F3446:<\/strong> Standard Test Method for Determination of Frictional Torque and Friction Factor for Hip Implants Using an Anatomical Motion Hip Simulator<\/p>\n\n\n\n<p><strong>ISO&nbsp;14242-1:<\/strong>&nbsp;Implants for surgery &#8211; wear of total hip prostheses &#8211; Part 1: Loading and displacement parameters for wear-testing machines and corresponding environmental conditions for tests<\/p>\n\n\n\n<p>This test method describes a procedure to measure the frictional torque of total hip joint prostheses. EndoLab<sup>\u00ae<\/sup>&nbsp;designed a 3D frictional torque device that allows the measurement of torque resulting from flexion\/extension, adduction\/abduction as well as internal\/external rotation. Besides uni-directional testing (flexion\/extension and adduction\/abduction) simulated gait testing is performed under the angular motions as described by <a href=\"https:\/\/endolab.org\/de\/hip-implants\/iso-14242-1-2\/\">ISO&nbsp;14242-1<\/a>.<br>The standard test fluid is calf serum as defined by <a href=\"https:\/\/endolab.org\/de\/hip-implants\/iso-14242-1-2\/\">ISO&nbsp;14242-1<\/a> and prior to testing, the viscosity of the test fluid is determined.<br>All tests are performed on a standard hip simulator meeting<a href=\"https:\/\/endolab.org\/de\/hip-implants\/iso-14242-1-2\/\"> ISO&nbsp;14242-1<\/a>. &nbsp;<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"endolab frictional torque\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/tC6ZyEWYHPM?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>","protected":false},"featured_media":0,"template":"","meta":{"_acf_changed":false,"_uag_custom_page_level_css":""},"class_list":["post-2802","hip-implants","type-hip-implants","status-publish","hentry"],"acf":[],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"trp-custom-language-flag":false},"uagb_author_info":{"display_name":"Kilian Pallauf","author_link":"https:\/\/endolab.org\/de\/author\/"},"uagb_comment_info":0,"uagb_excerpt":"ASTM F3446: Standard Test Method for Determination of Frictional Torque and Friction Factor for Hip Implants Using an Anatomical Motion Hip Simulator ISO&nbsp;14242-1:&nbsp;Implants for surgery &#8211; wear of total hip prostheses &#8211; Part 1: Loading and displacement parameters for wear-testing machines and corresponding environmental conditions for tests This test method describes a procedure to measure&hellip;","_links":{"self":[{"href":"https:\/\/endolab.org\/de\/wp-json\/wp\/v2\/hip-implants\/2802","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/endolab.org\/de\/wp-json\/wp\/v2\/hip-implants"}],"about":[{"href":"https:\/\/endolab.org\/de\/wp-json\/wp\/v2\/types\/hip-implants"}],"wp:attachment":[{"href":"https:\/\/endolab.org\/de\/wp-json\/wp\/v2\/media?parent=2802"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}