Show simple item record

dc.contributor.authorKadar, Thomas
dc.contributor.authorHallan, Geir
dc.contributor.authorAamodt, Arild
dc.contributor.authorIndrekvam, Kari
dc.contributor.authorBadawy, Mona
dc.contributor.authorHavelin, Leif Ivar
dc.contributor.authorStokke, Terje
dc.contributor.authorHaugan, Kristin
dc.contributor.authorEspehaug, Birgitte
dc.contributor.authorFurnes, Ove
dc.date.accessioned2019-10-09T12:47:05Z
dc.date.available2019-10-09T12:47:05Z
dc.date.created2011-12-13T17:13:13Z
dc.date.issued2011
dc.identifier.citationActa Orthopaedica. 2011, 82 (5), 538-544.nb_NO
dc.identifier.issn1745-3674
dc.identifier.urihttp://hdl.handle.net/11250/2621204
dc.description.abstractBackground and purpose We performed a randomized study to determine the migration patterns of the Spectron EF femoral stem and to compare them with those of the Charnley stem, which is regarded by many as the gold standard for comparison of implants due to its extensive documentation. Patients and methods 150 patients with a mean age of 70 years were randomized, single-blinded, to receive either a cemented Charnley flanged 40 monoblock, stainless steel, vaquasheen surface femoral stem with a 22.2-mm head (n = 30) or a cemented Spectron EF modular, matte, straight, collared, cobalt-chrome femoral stem with a 28-mm femoral head and a roughened proximal third of the stem (n = 120). The patients were followed with repeated radiostereometric analysis for 2 years to assess migration. Results At 2 years, stem retroversion was 2.3° and 0.7° (p < 0.001) and posterior translation was 0.44 mm and 0.17 mm (p = 0.002) for the Charnley group (n = 26) and the Spectron EF group (n = 74), respectively. Subsidence was 0.26 mm for the Charnley and 0.20 mm for the Spectron EF (p = 0.5). Interpretation The Spectron EF femoral stem was more stable than the Charnley flanged 40 stem in our study when evaluated at 2 years. In a report from the Norwegian arthroplasty register, the Spectron EF stem had a higher revision rate due to aseptic loosening beyond 5 years than the Charnley. Initial stability is not invariably related to good long-term results. Our results emphasize the importance of prospective long-term follow-up of prosthetic implants in clinical trials and national registries and a stepwise introduction of implants.nb_NO
dc.language.isoengnb_NO
dc.publisherTaylor & Francisnb_NO
dc.rightsNavngivelse-Ikkekommersiell 4.0 Internasjonal*
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/deed.no*
dc.titleA randomized study on migration of the Spectron EF and the Charnley flanged 40 cemented femoral components using radiostereometric analysis at 2 yearsnb_NO
dc.typeJournal articlenb_NO
dc.typePeer reviewednb_NO
dc.description.versionpublishedVersionnb_NO
dc.subject.nsiVDP::Ortopedisk kirurgi: 784nb_NO
dc.subject.nsiVDP::Orthopaedic surgery: 784nb_NO
dc.source.pagenumber538-544nb_NO
dc.source.volume82nb_NO
dc.source.journalActa Orthopaedicanb_NO
dc.source.issue5nb_NO
dc.identifier.doi10.3109/17453674.2011.618914
dc.identifier.cristin867402
dc.description.localcodeCopyright: © Nordic Orthopaedic Federation This is an open-access article distributed under the terms of the Creative Commons Attribution Noncommercial License which permits any noncommercial use, distribution, and reproduction in any medium, provided the source is credited.nb_NO
cristin.unitcode194,65,30,0
cristin.unitcode1920,9,0,0
cristin.unitnameInstitutt for nevromedisin og bevegelsesvitenskap
cristin.unitnameKlinikk for ortopedi, revmatologi og hudsykdommer
cristin.ispublishedtrue
cristin.fulltextoriginal
cristin.qualitycode1


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record

Navngivelse-Ikkekommersiell 4.0 Internasjonal
Except where otherwise noted, this item's license is described as Navngivelse-Ikkekommersiell 4.0 Internasjonal