{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,8,28]],"date-time":"2025-08-28T00:06:04Z","timestamp":1756339564118,"version":"3.44.0"},"reference-count":13,"publisher":"BMJ","issue":"11","content-domain":{"domain":["bmj.com"],"crossmark-restriction":true},"short-container-title":["BMJ Case Rep"],"accepted":{"date-parts":[[2020,10,22]]},"published-print":{"date-parts":[[2020,11]]},"abstract":"<jats:p>A fracture through the neck of the femoral stem in total hip arthroplasty is extremely rare. We report a neck fracture of a cementless Zweym\u00fcller stem, one of the most implanted stems worldwide. According to our knowledge, this is the first thorough case description of a neck fracture of a cementless Zweym\u00fcller stem. The case concerns a 53-year-old man, with a body weight of 103 kg and a body mass index of 31. We consider potential risk factors for a femoral stem fracture, such as patient-related factors, suboptimal implant positioning, surgical technique and implant characteristics.<\/jats:p>","DOI":"10.1136\/bcr-2020-236328","type":"journal-article","created":{"date-parts":[[2020,11,30]],"date-time":"2020-11-30T15:45:41Z","timestamp":1606751141000},"page":"e236328","update-policy":"https:\/\/doi.org\/10.1136\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":0,"title":["Fatigue fracture of an uncemented Zweym\u00fcller femoral stem at the neck\u2013shoulder junction"],"prefix":"10.1136","volume":"13","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1933-8250","authenticated-orcid":false,"given":"Thijs Andreas","family":"Nijenhuis","sequence":"first","affiliation":[{"name":"Zuyderland Medical Centre Sittard-Geleen, Sittard-Geleen, Limburg, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4429-6555","authenticated-orcid":false,"given":"Stijn Albertus Andreas Nicolaas","family":"Bolink","sequence":"additional","affiliation":[{"name":"Department of Orthopaedics, Deventer Hospital, Deventer, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-3971-0451","authenticated-orcid":false,"given":"Roy Bernardus Gerardus","family":"Brokelman","sequence":"additional","affiliation":[{"name":"Orthopedisch Centrum Oost Nederland OCON, Hengelo, The Netherlands"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"239","published-online":{"date-parts":[[2020,11,30]]},"reference":[{"key":"2025082710273884000_13.11.e236328.1","doi-asserted-by":"publisher","DOI":"10.1016\/S0883-5403(05)80199-8"},{"key":"2025082710273884000_13.11.e236328.2","doi-asserted-by":"publisher","DOI":"10.1007\/s00264-013-2110-3"},{"key":"2025082710273884000_13.11.e236328.3","doi-asserted-by":"crossref","first-page":"50","DOI":"10.1159\/000495359","article-title":"Taper fracture of Uncemented femoral stem after total hip arthroplasty","volume":"1","author":"Al Habsi","year":"2018","journal-title":"Case Reports in Orthopedic Research"},{"key":"2025082710273884000_13.11.e236328.4","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.F.00570"},{"key":"2025082710273884000_13.11.e236328.5","doi-asserted-by":"publisher","DOI":"10.1016\/j.arth.2004.05.001"},{"key":"2025082710273884000_13.11.e236328.6","first-page":"1","article-title":"Analysis of a Cementless femoral stem neck fracture using scanning electron microscopy and the finite element method","volume":"2019","author":"Takai","year":"2019","journal-title":"Case Rep Orthop"},{"key":"2025082710273884000_13.11.e236328.7","doi-asserted-by":"crossref","unstructured":"Wright, BS C , Lambert, BS D , Brazil, PhD D , et al . Clinical review of the Zweymuller femoral stem. Reconstructive Review 2011;1.doi:10.15438\/rr.v1i1.5","DOI":"10.15438\/rr.v1i1.5"},{"key":"2025082710273884000_13.11.e236328.8","doi-asserted-by":"publisher","DOI":"10.1054\/arth.2001.20542"},{"key":"2025082710273884000_13.11.e236328.9","doi-asserted-by":"crossref","first-page":"868","DOI":"10.2106\/JBJS.18.00259","article-title":"Electrocautery damage can reduce implant fatigue strength: cases and in vitro investigation","volume":"101","author":"Sonntag","year":"2019","journal-title":"J Bone Joint Surg Am"},{"key":"2025082710273884000_13.11.e236328.10","doi-asserted-by":"publisher","DOI":"10.1302\/0301-620X.87B10.16528"},{"key":"2025082710273884000_13.11.e236328.11","doi-asserted-by":"crossref","first-page":"196.e1","DOI":"10.1016\/j.arth.2011.05.024","article-title":"Fracture of the modular femoral neck component in total hip arthroplasty","volume":"28","author":"Ellman","year":"2013","journal-title":"J Arthroplasty"},{"key":"2025082710273884000_13.11.e236328.12","doi-asserted-by":"publisher","DOI":"10.2106\/JBJS.I.01033"},{"key":"2025082710273884000_13.11.e236328.13","doi-asserted-by":"crossref","first-page":"95","DOI":"10.1016\/j.jor.2013.04.007","article-title":"Laser etching causing fatigue fracture at the neck-shoulder junction of an uncemented femoral stem: a case report","volume":"10","author":"Jang","year":"2013","journal-title":"J Orthop"}],"container-title":["BMJ Case Reports"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/syndication.highwire.org\/content\/doi\/10.1136\/bcr-2020-236328","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,8,27]],"date-time":"2025-08-27T17:27:48Z","timestamp":1756315668000},"score":1,"resource":{"primary":{"URL":"https:\/\/casereports.bmj.com\/lookup\/doi\/10.1136\/bcr-2020-236328"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,11]]},"references-count":13,"journal-issue":{"issue":"11","published-online":{"date-parts":[[2020,11,30]]},"published-print":{"date-parts":[[2020,11]]}},"alternative-id":["10.1136\/bcr-2020-236328"],"URL":"https:\/\/doi.org\/10.1136\/bcr-2020-236328","relation":{},"ISSN":["1757-790X"],"issn-type":[{"type":"electronic","value":"1757-790X"}],"subject":[],"published":{"date-parts":[[2020,11]]}}}