Please use this identifier to cite or link to this item: https://doi.org/10.15480/882.1547
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dc.contributor.authorMorlock, Michael-
dc.contributor.authorBishop, Nicholas-
dc.contributor.authorRüther, Wolfgang-
dc.contributor.authorDelling, Günter-
dc.contributor.authorHahn, Michael-
dc.date.accessioned2018-02-26T09:44:40Z-
dc.date.available2018-02-26T09:44:40Z-
dc.date.issued2006-02-
dc.identifier.citationProceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicine 2 (220): 333-344 (2006)de_DE
dc.identifier.issn2041-3033de_DE
dc.identifier.urihttp://tubdok.tub.tuhh.de/handle/11420/1550-
dc.description.abstractThe present revival of hip resurfacing arthroplasty may be related to an increase in early failures owing to the challenging technique of the procedure. Fifty-five retrieved implants were analysed with respect to wear, cement mantle and cement penetration, fracture and head morphology, as well as standard histology. Femoral neck fractures occurred in median after 102 days. The time to failure was shorter for older women. Major deviations from the suggested cement mantle thickness and cement penetration were found. Indications for high trauma during implantation leading to early failure due to weakening of the femoral neck were also observed. Some failures had signs of pseudarthrosis beneath the implant. Four different fracture patterns with different mean survival times were identified. Observed wear was minor with the exception of that due to alignment mistakes (rim loading). The cups were not damaged by the failures. Histological results indicate that avascular necrosis is not necessarily connected with this kind of endoprosthetic surgery. Most of the failures analysed can probably be attributed to the 'learning curve' effect, which is an unsatisfactory situation.en
dc.language.isoende_DE
dc.publisherSage Publ.de_DE
dc.relation.ispartofProceedings of the Institution of Mechanical Engineers. Part H, Journal of engineering in medicinede_DE
dc.rightsinfo:eu-repo/semantics/openAccess-
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/
dc.subjectAgedde_DE
dc.subjectArthroplasty, Hip Replacementde_DE
dc.subjectBiomechanical Phenomenade_DE
dc.subjectEquipment Failure Analysisde_DE
dc.subjectFemalede_DE
dc.subjectFemoral Fracturesde_DE
dc.subjectFemur Headde_DE
dc.subjectFemur Head Necrosisde_DE
dc.subjectHip Prosthesisde_DE
dc.subjectHumansde_DE
dc.subjectMalede_DE
dc.subjectMiddle Agedde_DE
dc.subjectSurface Propertiesde_DE
dc.subjectTreatment Outcomede_DE
dc.subjectProsthesis Failurede_DE
dc.subject.ddc610: Medizinde_DE
dc.titleBiomechanical, morphological, and histological analysis of early failures in hip resurfacing arthroplastyde_DE
dc.typeArticlede_DE
dc.identifier.urnurn:nbn:de:gbv:830-88218917-
dc.identifier.doi10.15480/882.1547-
dc.type.diniarticle-
dc.subject.ddccode610-
dcterms.DCMITypeText-
tuhh.identifier.urnurn:nbn:de:gbv:830-88218917de_DE
tuhh.oai.showtrue-
dc.identifier.hdl11420/1550-
tuhh.abstract.englishThe present revival of hip resurfacing arthroplasty may be related to an increase in early failures owing to the challenging technique of the procedure. Fifty-five retrieved implants were analysed with respect to wear, cement mantle and cement penetration, fracture and head morphology, as well as standard histology. Femoral neck fractures occurred in median after 102 days. The time to failure was shorter for older women. Major deviations from the suggested cement mantle thickness and cement penetration were found. Indications for high trauma during implantation leading to early failure due to weakening of the femoral neck were also observed. Some failures had signs of pseudarthrosis beneath the implant. Four different fracture patterns with different mean survival times were identified. Observed wear was minor with the exception of that due to alignment mistakes (rim loading). The cups were not damaged by the failures. Histological results indicate that avascular necrosis is not necessarily connected with this kind of endoprosthetic surgery. Most of the failures analysed can probably be attributed to the 'learning curve' effect, which is an unsatisfactory situation.de_DE
tuhh.publisher.doi10.1243/095441105X69015-
tuhh.publication.instituteBiomechanik M-3de_DE
tuhh.identifier.doi10.15480/882.1547-
tuhh.type.opus(wissenschaftlicher) Artikel-
tuhh.institute.germanBiomechanik M-3de
tuhh.institute.englishBiomechanik M-3de_DE
tuhh.gvk.hasppnfalse-
tuhh.hasurnfalse-
openaire.rightsinfo:eu-repo/semantics/openAccessde_DE
dc.type.driverarticle-
dc.type.casraiJournal Article-
tuhh.container.issue2de_DE
tuhh.container.volume220de_DE
tuhh.container.startpage333de_DE
tuhh.container.endpage344de_DE
dc.rights.nationallicensetruede_DE
dc.rights.nltextDieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG geförderten) Allianz- bzw. Nationallizenz frei zugänglich. This publication is with permission of the rights owner freely accessible due to an Alliance licence and a national licence (funded by the DFG, German Research Foundation) respectively.de_DE
item.grantfulltextopen-
item.creatorGNDMorlock, Michael-
item.creatorGNDBishop, Nicholas-
item.creatorGNDRüther, Wolfgang-
item.creatorGNDDelling, Günter-
item.creatorGNDHahn, Michael-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.fulltextWith Fulltext-
item.openairetypeArticle-
item.creatorOrcidMorlock, Michael-
item.creatorOrcidBishop, Nicholas-
item.creatorOrcidRüther, Wolfgang-
item.creatorOrcidDelling, Günter-
item.creatorOrcidHahn, Michael-
item.languageiso639-1en-
item.cerifentitytypePublications-
crisitem.author.deptBiomechanik M-3-
crisitem.author.deptBiomechanik M-3-
crisitem.author.orcid0000-0002-5330-2454-
crisitem.author.parentorgStudiendekanat Maschinenbau-
crisitem.author.parentorgStudiendekanat Maschinenbau-
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