{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,4]],"date-time":"2026-05-04T08:47:58Z","timestamp":1777884478763,"version":"3.51.4"},"reference-count":28,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2006,2,1]],"date-time":"2006-02-01T00:00:00Z","timestamp":1138752000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Proc Inst Mech Eng H"],"published-print":{"date-parts":[[2006,2,1]]},"abstract":"<jats:p>\n                    Between August 2003 and April 2005, 300 ASR\u00ae metal-on-metal resurfacing hip endoprostheses were implanted by the first author and a fellow surgeon. The mean age at surgery was 56.8 years (18-75.9 years) and mean body mass index was 27.6 kg\/m\n                    <jats:sup>2<\/jats:sup>\n                    (range, 19-41 kg\/m\n                    <jats:sup>2<\/jats:sup>\n                    ). The mean follow-up time was 202 days. The mean Harris hip score improved from 44 pre-operatively to 89 at 3 months post-operatively. In total, eight (2.7 per cent) cases [five neck fractures (1.66 per cent) and three cup revisions (1 per cent)] were revised. Two neck fractures occurred within a group of seven cases of femoral neck notching detected postoperatively; one neck fracture occurred out of two cases of incomplete seating of the femoral implant. A significantly higher (p &lt; 0.001) failure rate was observed for patients who had undergone a previous osteosynthesis of the proximal femur (three revisions in a group of 15 patients). Revision cases had a significantly greater body mass index (p = 0.031). A learning curve was evident from the reduction in revisions from 5 in the first 100 surgical procedures to 2 in the next 100 and 1 in the last 100. These results show the importance of accurate surgical technique and careful patient selection for fourth-generation hip resurfacing implants.\n                  <\/jats:p>","DOI":"10.1243\/095441105x69079","type":"journal-article","created":{"date-parts":[[2007,10,16]],"date-time":"2007-10-16T10:00:50Z","timestamp":1192528850000},"page":"345-353","source":"Crossref","is-referenced-by-count":70,"title":["Lessons learned from early clinical experience and results of 300 ASR\u00ae hip resurfacing implantations"],"prefix":"10.1177","volume":"220","author":[{"given":"T","family":"Siebel","sequence":"first","affiliation":[{"name":"Orthopaedic Department, Knappschaftskrankenhaus P\u00fcttlingen, P\u00fcttlingen, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S","family":"Maubach","sequence":"additional","affiliation":[{"name":"Orthopaedic Department, Knappschaftskrankenhaus P\u00fcttlingen, P\u00fcttlingen, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M M","family":"Morlock","sequence":"additional","affiliation":[{"name":"Biomechanics Section, TUHH Hamburg University of Technology, Hamburg, Germany"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","published-online":{"date-parts":[[2006,2,1]]},"reference":[{"key":"bibr1-095441105X69079","doi-asserted-by":"publisher","DOI":"10.3109\/17453678709146447"},{"key":"bibr2-095441105X69079","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-199072050-00010"},{"key":"bibr3-095441105X69079","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198567080-00004"},{"key":"bibr4-095441105X69079","doi-asserted-by":"crossref","first-page":"144","DOI":"10.1097\/00003086-199006000-00021","volume":"255","author":"Howie D. W.","year":"1990","journal-title":"Clin. Orthop."},{"key":"bibr5-095441105X69079","doi-asserted-by":"publisher","DOI":"10.2106\/00004623-198668020-00007"},{"key":"bibr6-095441105X69079","doi-asserted-by":"publisher","DOI":"10.1243\/0954411001535228"},{"key":"bibr7-095441105X69079","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.87B2.15030"},{"key":"bibr8-095441105X69079","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.81B1.9047"},{"key":"bibr9-095441105X69079","unstructured":"Beaule P. E., Dorey F. J., Amstutz H. C. Wagner and McMinn metal-on-metal surface arthroplasty of the hip. Minimum 5 year follow-up. Presented at the Annual Meeting of the Canadian Orthopaedic Association, London, Ontario, Canada, 1-4 June 2001."},{"key":"bibr10-095441105X69079","doi-asserted-by":"crossref","first-page":"92","DOI":"10.1097\/00003086-198207000-00013","volume":"167","author":"Bogoch E. R.","year":"1982","journal-title":"Clin. 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