DC FieldValueLanguage
dc.contributor.authorZobel, Sebastian Manuel-
dc.contributor.authorRuhr, Miriam-
dc.contributor.authorNeumann, Fenna-
dc.contributor.authorHuber, Gerd-
dc.contributor.authorMorlock, Michael-
dc.date.accessioned2022-06-29T09:22:19Z-
dc.date.available2022-06-29T09:22:19Z-
dc.date.issued2022-06-01-
dc.identifier.citationJournal of biomechanics 139: 111149 (2022-06-01)de_DE
dc.identifier.issn1873-2380de_DE
dc.identifier.urihttp://hdl.handle.net/11420/12971-
dc.description.abstractSufficient primary stability is one of the most important prerequisites for successful osseointegration of cementless implants. Bone grafts, densification and compaction methods have proven clinically successful, but the related effects and causes have not been systematically investigated. Postoperatively, the frictional properties of the bone-implant interface determine the amount of tolerable shear stress. Frictional properties of different implant surfaces have been widely studied. Less attention has been paid to the influence of host bone modifications. The purpose of this study was to investigate the influence of densification of cancellous bone with bone particles on the interface friction coefficient. Cancellous bone samples from femoral heads were densified with bone particles obtained during sample preparation. The densification was quantified using micro-Ct. Friction coefficients of the densified and paired native samples were determined. Densification increased the BV/TV in the first two millimeters of the bone samples by 10.5 ± 2.7% to 30.5 ± 2.7% (p < 0.001). The static friction coefficient was increased by 10.5 ± 6.1% to 0.43 ± 0.03. The static friction coefficient increased with higher BV/TV of the bone interface, which is represented by the top 2 mm of the bone. The increase in contact area, intertrabecular anchorage and particle bracing could be responsible for the increase in friction. Optimization of particle shape and size based on the patient's individual bone microstructure could further increase frictional resistance. Bone densification has the potential to improve the primary stability of uncemented implants.en
dc.language.isoende_DE
dc.relation.ispartofJournal of biomechanicsde_DE
dc.subjectBone Densificationde_DE
dc.subjectBone Particlesde_DE
dc.subjectBone-Implant-Interfacede_DE
dc.subjectCementless Implant Fixationde_DE
dc.subjectFriction Propertiesde_DE
dc.subjectPrimary Stabilityde_DE
dc.titleDensification of cancellous bone with autologous particles can enhance the primary stability of uncemented implants by increasing the interface friction coefficientde_DE
dc.typeArticlede_DE
dc.type.diniarticle-
dcterms.DCMITypeText-
tuhh.abstract.englishSufficient primary stability is one of the most important prerequisites for successful osseointegration of cementless implants. Bone grafts, densification and compaction methods have proven clinically successful, but the related effects and causes have not been systematically investigated. Postoperatively, the frictional properties of the bone-implant interface determine the amount of tolerable shear stress. Frictional properties of different implant surfaces have been widely studied. Less attention has been paid to the influence of host bone modifications. The purpose of this study was to investigate the influence of densification of cancellous bone with bone particles on the interface friction coefficient. Cancellous bone samples from femoral heads were densified with bone particles obtained during sample preparation. The densification was quantified using micro-Ct. Friction coefficients of the densified and paired native samples were determined. Densification increased the BV/TV in the first two millimeters of the bone samples by 10.5 ± 2.7% to 30.5 ± 2.7% (p < 0.001). The static friction coefficient was increased by 10.5 ± 6.1% to 0.43 ± 0.03. The static friction coefficient increased with higher BV/TV of the bone interface, which is represented by the top 2 mm of the bone. The increase in contact area, intertrabecular anchorage and particle bracing could be responsible for the increase in friction. Optimization of particle shape and size based on the patient's individual bone microstructure could further increase frictional resistance. Bone densification has the potential to improve the primary stability of uncemented implants.de_DE
tuhh.publisher.doi10.1016/j.jbiomech.2022.111149-
tuhh.publication.instituteBiomechanik M-3de_DE
tuhh.type.opus(wissenschaftlicher) Artikel-
dc.type.driverarticle-
dc.type.casraiJournal Article-
tuhh.container.volume139de_DE
tuhh.container.startpage111149de_DE
dc.identifier.pmid35609491de_DE
dc.identifier.scopus2-s2.0-85132454252de_DE
datacite.resourceTypeArticle-
datacite.resourceTypeGeneralJournalArticle-
item.creatorOrcidZobel, Sebastian Manuel-
item.creatorOrcidRuhr, Miriam-
item.creatorOrcidNeumann, Fenna-
item.creatorOrcidHuber, Gerd-
item.creatorOrcidMorlock, Michael-
item.grantfulltextnone-
item.creatorGNDZobel, Sebastian Manuel-
item.creatorGNDRuhr, Miriam-
item.creatorGNDNeumann, Fenna-
item.creatorGNDHuber, Gerd-
item.creatorGNDMorlock, Michael-
item.mappedtypeArticle-
item.openairecristypehttp://purl.org/coar/resource_type/c_6501-
item.fulltextNo Fulltext-
item.cerifentitytypePublications-
item.languageiso639-1en-
item.openairetypeArticle-
crisitem.author.deptBiomechanik M-3-
crisitem.author.deptBiomechanik M-3-
crisitem.author.deptBiomechanik M-3-
crisitem.author.deptBiomechanik M-3-
crisitem.author.orcid0000-0003-2323-6916-
crisitem.author.orcid0000-0002-1832-3305-
crisitem.author.orcid0000-0002-9883-3953-
crisitem.author.orcid0000-0002-5330-2454-
crisitem.author.parentorgStudiendekanat Maschinenbau-
crisitem.author.parentorgStudiendekanat Maschinenbau-
crisitem.author.parentorgStudiendekanat Maschinenbau-
crisitem.author.parentorgStudiendekanat Maschinenbau-
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