{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,15]],"date-time":"2026-05-15T05:17:49Z","timestamp":1778822269952,"version":"3.51.4"},"reference-count":37,"publisher":"SAGE Publications","issue":"1","license":[{"start":{"date-parts":[[2015,2,11]],"date-time":"2015-02-11T00:00:00Z","timestamp":1423612800000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["HIP International"],"published-print":{"date-parts":[[2016,1]]},"abstract":"<jats:sec>\n                    <jats:title>Background<\/jats:title>\n                    <jats:p>Large-head metal-on-metal (MoM) total hip arthroplasties (THA) are associated with high failure rates and possible pseudotumour formation. This study reports the first results of 160 Biomet Magnum M2 large-head MoM total hip articulations.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Patients and methods<\/jats:title>\n                    <jats:p>From 2006 to 2010 the Reinier de Graaf Hospital implanted 160 large-head Magnum M2 MoM THAs (Biomet Inc. Warsaw, Indiana, USA) in 150 patients. These patients were recalled after a warning from the Dutch Orthopaedic Association. Patients were offered a clinical and radiographic assessment of the hip prosthesis, serum control on cobalt and chromium ions, and an ultrasound of the hip. If indicated, additional MARS-MRI or CT scan was performed. Descriptive statistical analysis, correlations, t-tests, non-parametric tests and implant survival were calculated.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>The mean follow-up was 6.1 years (4.8-8.4). A cumulative survival rate of 93.1% (95% CI: 88.3-98%) was found after 5 years. Reasons for revision were loosening, pain, infection and pseudotumour formation. The prevalence of pseudotumour formation around the prostheses was 8.75%.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusions<\/jats:title>\n                    <jats:p>This study reports the first results of 160 MoM THAs implanted in our clinic from 2006-2010. In total, 13 (8.1%) of the THAs were eligible for revision after the recall. In most patients the reason for revision was pseudotumour formation. A total of 14 (8.75%) pseudotumours were diagnosed at the first recall. These results show that a comprehensive follow-up strategy is essential for MoM THAs to promptly identify and manage early complications.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.5301\/hipint.5000293","type":"journal-article","created":{"date-parts":[[2015,11,6]],"date-time":"2015-11-06T06:29:15Z","timestamp":1446791355000},"page":"50-56","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":8,"title":["A 5-Year Survival Analysis of 160 Biomet Magnum M2 metal-on-Metal Total Hip Prostheses"],"prefix":"10.1177","volume":"26","author":[{"given":"Maarten C.","family":"Koper","sequence":"first","affiliation":[{"name":"Department of Orthopaedics, Reinier de Graaf Hospital, Delft - The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nina M.C.","family":"Mathijssen","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Reinier de Graaf Hospital, Delft - The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Stephan B.W.","family":"Vehmeijer","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Reinier de Graaf Hospital, Delft - The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2015,2,11]]},"reference":[{"key":"bibr1-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-010-1262-3"},{"key":"bibr2-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1016\/S0140-6736(12)60353-5"},{"key":"bibr3-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.e1410"},{"key":"bibr4-hipint.5000293","unstructured":"Medicines and Healthcare products Regulatory Agency (MHRA). Medical Device Alert: all metal-on-metal (MOM) hip replacements, 2010 MDA\/2010\/033 http:\/\/www.njrcentre.org.uk\/njrcentre\/MHRA\/tabid\/160\/Default.aspx. Accessed June 22, 2011."},{"key":"bibr5-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-010-1372-y"},{"key":"bibr6-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1136\/bmj.d5977"},{"key":"bibr7-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.90B7.20213"},{"key":"bibr8-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.I.01426"},{"key":"bibr9-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.92B8.24194"},{"key":"bibr10-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.90B9.20785"},{"key":"bibr11-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.3109\/17453679909000975"},{"key":"bibr12-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.94B6.28373"},{"key":"bibr13-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1007\/s11999-011-2069-6"},{"key":"bibr14-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.2174\/1874325001206010366"},{"key":"bibr15-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.93B5.26309"},{"key":"bibr16-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.J.01612"},{"key":"bibr17-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.91B12.22287"},{"key":"bibr18-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2007.09.024"},{"key":"bibr19-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.J.01508"},{"key":"bibr20-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2010.05.030"},{"key":"bibr21-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198870080-00017"},{"key":"bibr22-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.79B2.7326"},{"key":"bibr23-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.89B2.18519"},{"key":"bibr24-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.A.02039pp"},{"key":"bibr25-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2011.12.016"},{"key":"bibr26-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1016\/j.otsr.2011.11.009"},{"key":"bibr27-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.J.01885"},{"issue":"4","key":"bibr28-hipint.5000293","first-page":"477","volume":"75","author":"Malviya A","year":"2009","journal-title":"Acta Orthop Belg"},{"key":"bibr29-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.90B10.20533"},{"key":"bibr30-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.92B1.22770"},{"key":"bibr31-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.92B3.23281"},{"key":"bibr32-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.5301\/hipint.5000054"},{"key":"bibr33-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199810000-00006"},{"key":"bibr34-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.88B4.17333"},{"key":"bibr35-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.J.01884"},{"key":"bibr36-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.H.00750"},{"key":"bibr37-hipint.5000293","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.89B4.18054"}],"container-title":["HIP International"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.5301\/hipint.5000293","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.5301\/hipint.5000293","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.5301\/hipint.5000293","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T08:18:33Z","timestamp":1777450713000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.5301\/hipint.5000293"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2015,2,11]]},"references-count":37,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2016,1]]}},"alternative-id":["10.5301\/hipint.5000293"],"URL":"https:\/\/doi.org\/10.5301\/hipint.5000293","relation":{},"ISSN":["1120-7000","1724-6067"],"issn-type":[{"value":"1120-7000","type":"print"},{"value":"1724-6067","type":"electronic"}],"subject":[],"published":{"date-parts":[[2015,2,11]]}}}