{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,8,18]],"date-time":"2026-08-18T03:52:15Z","timestamp":1787025135838,"version":"build-2736575974"},"reference-count":28,"publisher":"MJS Publishing, Medical Journals Sweden AB","license":[{"start":{"date-parts":[[2023,7,4]],"date-time":"2023-07-04T00:00:00Z","timestamp":1688428800000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["ActaO"],"abstract":"<jats:p>Purpose: We aimed to determine the minimum 20-year survival rates of a cementless press-fit cup in young patients.Patients and methods: This is a retrospective, single-center, multi-surgeon cohort study investigating the minimum 20-year clinical and radiological outcome of the first 121 consecutive total hip replacements (THRs) using a cementless, press-fit cup (Allofit, Zimmer, Warsaw, IN, USA) performed between 1999 and 2001. 28-mm metal-on-metal (MoM) and ceramic-on-conventionally not highly crosslinked polyethylene (CoP) bearings were used in 71% and 28%, respectively. Median patient age at surgery was 52 (range 21\u201360) years. Kaplan\u2013Meier survival analysis was conducted for different endpoints.Results: The 22-year survival rate for the endpoint aseptic cup or inlay revision was 94% (95% confidence interval [CI] 87\u201396) and 99% (CI 94\u2013100) for aseptic cup loosening. 20 patients (21 THRs; 17%) had died and 5 (5 THRs; 4%) were lost to follow-up. No THR showed evidence of radiographic cup loosening. Osteolysis was observed in 40% of THRs with MoM and 77% with CoP bearings. 88% of THRs with CoP bearings showed significant polyethylene wear.Conclusion: The investigated cementless press-fit cup, which is still in clinical use today, showed excellent long-term survival rates in patients under the age of 60 years at surgery. However, osteolysis due to polyethylene and metal wear was frequently observed and is a matter of concern in the third decade after surgery.<\/jats:p>","DOI":"10.2340\/17453674.2023.13385","type":"journal-article","created":{"date-parts":[[2023,7,6]],"date-time":"2023-07-06T04:26:18Z","timestamp":1688617578000},"source":"Crossref","is-referenced-by-count":7,"title":["Minimum 20-year follow-up of a press-fit acetabular cup in cementless total hip replacement in young patients"],"prefix":"10.2340","volume":"94","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-5364-1552","authenticated-orcid":false,"given":"Andre","family":"Lunz","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Moritz","family":"Von Falkenhayn","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sebastian","family":"Jaeger","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tobias","family":"Reiner","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Christian","family":"Merle","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Marcus R","family":"Streit","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tobias","family":"Renkawitz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Moritz M","family":"Innmann","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1183","published-online":{"date-parts":[[2023,7,4]]},"reference":[{"key":"34594","unstructured":"Ben-Shlomo Y, Blom A, Boulton C, Brittain R, Clark E, Dawson-Bowling S, et al. 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Wear and osteolysis outcomes for highly cross-linked polyethylene in primary total hip arthroplasty compared with conventional polyethylene: a 15- to 18-year single-centre follow-up study. Hip Int 2021; 31: 526-32. doi: 10.1177\/1120700019896970.","DOI":"10.1177\/1120700019896970"},{"key":"34599","doi-asserted-by":"crossref","unstructured":"Schreurs B W, Hannink G. Total joint arthroplasty in younger patients: heading for trouble? Lancet 2017; 389: 1374-5. doi: 10.1016\/s0140-6736(17)30190-3.","DOI":"10.1016\/S0140-6736(17)30190-3"},{"key":"34600","doi-asserted-by":"crossref","unstructured":"Streit M R, Weiss S, Andreas F, Bruckner T, Walker T, Kretzer J P, et al. 10-year results of the uncemented Allofit press-fit cup in young patients. Acta Orthop 2014; 85: 368-74. doi: 10.3109\/17453674.2014.925351.","DOI":"10.3109\/17453674.2014.925351"},{"key":"34601","doi-asserted-by":"crossref","unstructured":"DeLee J G, Charnley J. 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