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Article: Mechanical properties of femoral cortical bone following cemented hip replacement

TitleMechanical properties of femoral cortical bone following cemented hip replacement
Authors
KeywordsBone remodeling
Microhardness
Stress shielding
Total hip replacement
Issue Date2007
PublisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.elsevier.com/locate/orthres
Citation
Journal Of Orthopaedic Research, 2007, v. 25 n. 11, p. 1408-1414 How to Cite?
AbstractFemoral bone remodeling following total hip replacement is a big concern and has never been examined mechanically. In this study, six goats underwent unilateral cemented hip hemiarthroplasty with polymethyl methacrylate (PMMA) bone cement. Nine months later animals were sacrificed, and the femoral cortical bone slices at different levels were analysed using microhardness testing and microcomputed tomography (micro-CT) scanning. Implanted femurs were compared to contralateral nonimplanted femurs. Extensive bone remodeling was demonstrated at both the proximal and middle levels, but not at the distal level. Compared with the nonimplanted side, significant decreases were found in the implanted femur in cortical bone area, bone mineral density, and cortical bone hardness at the proximal level, as well as in bone mineral density and bone hardness at the middle level. However, no significant difference was observed in either variable for the distal level. In addition, similar proximal-to-distal gradient changes were revealed both in cortical bone microhardness and bone mineral density. From the mechanical point of view, the results of the present study suggested that stress shielding is an important mechanical factor associated with bone adaptation following total hip replacement. © 2007 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.
Persistent Identifierhttp://hdl.handle.net/10722/79639
ISSN
2015 Impact Factor: 2.807
2015 SCImago Journal Rankings: 1.464
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorNi, GXen_HK
dc.contributor.authorLu, WWen_HK
dc.contributor.authorChiu, PKYen_HK
dc.contributor.authorWang, Yen_HK
dc.contributor.authorLi, ZYen_HK
dc.contributor.authorZhang, YGen_HK
dc.contributor.authorXu, Ben_HK
dc.contributor.authorDeng, LFen_HK
dc.contributor.authorLuk, KDKen_HK
dc.date.accessioned2010-09-06T07:56:55Z-
dc.date.available2010-09-06T07:56:55Z-
dc.date.issued2007en_HK
dc.identifier.citationJournal Of Orthopaedic Research, 2007, v. 25 n. 11, p. 1408-1414en_HK
dc.identifier.issn0736-0266en_HK
dc.identifier.urihttp://hdl.handle.net/10722/79639-
dc.description.abstractFemoral bone remodeling following total hip replacement is a big concern and has never been examined mechanically. In this study, six goats underwent unilateral cemented hip hemiarthroplasty with polymethyl methacrylate (PMMA) bone cement. Nine months later animals were sacrificed, and the femoral cortical bone slices at different levels were analysed using microhardness testing and microcomputed tomography (micro-CT) scanning. Implanted femurs were compared to contralateral nonimplanted femurs. Extensive bone remodeling was demonstrated at both the proximal and middle levels, but not at the distal level. Compared with the nonimplanted side, significant decreases were found in the implanted femur in cortical bone area, bone mineral density, and cortical bone hardness at the proximal level, as well as in bone mineral density and bone hardness at the middle level. However, no significant difference was observed in either variable for the distal level. In addition, similar proximal-to-distal gradient changes were revealed both in cortical bone microhardness and bone mineral density. From the mechanical point of view, the results of the present study suggested that stress shielding is an important mechanical factor associated with bone adaptation following total hip replacement. © 2007 Orthopaedic Research Society. Published by Wiley Periodicals, Inc.en_HK
dc.languageengen_HK
dc.publisherJohn Wiley & Sons, Inc. The Journal's web site is located at http://www.elsevier.com/locate/orthresen_HK
dc.relation.ispartofJournal of Orthopaedic Researchen_HK
dc.rightsJournal of Orthopaedic Research. Copyright © John Wiley & Sons, Inc.en_HK
dc.subjectBone remodelingen_HK
dc.subjectMicrohardnessen_HK
dc.subjectStress shieldingen_HK
dc.subjectTotal hip replacementen_HK
dc.titleMechanical properties of femoral cortical bone following cemented hip replacementen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0736-0266&volume=&spage=1408&epage=1414&date=2007&atitle=Mechanical+properties+of+femoral+cortical+bone+following+cemented+hip+replacementen_HK
dc.identifier.emailLu, WW:wwlu@hku.hken_HK
dc.identifier.emailChiu, PKY:pkychiu@hkucc.hku.hken_HK
dc.identifier.emailLuk, KDK:hcm21000@hku.hken_HK
dc.identifier.authorityLu, WW=rp00411en_HK
dc.identifier.authorityChiu, PKY=rp00379en_HK
dc.identifier.authorityLuk, KDK=rp00333en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.doi10.1002/jor.20388en_HK
dc.identifier.pmid17506504-
dc.identifier.scopuseid_2-s2.0-36749028885en_HK
dc.identifier.hkuros139345en_HK
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-36749028885&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume25en_HK
dc.identifier.issue11en_HK
dc.identifier.spage1408en_HK
dc.identifier.epage1414en_HK
dc.identifier.isiWOS:000250737700002-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridNi, GX=8303037400en_HK
dc.identifier.scopusauthoridLu, WW=7404215221en_HK
dc.identifier.scopusauthoridChiu, PKY=7202988127en_HK
dc.identifier.scopusauthoridWang, Y=8640586600en_HK
dc.identifier.scopusauthoridLi, ZY=35784563200en_HK
dc.identifier.scopusauthoridZhang, YG=7601314771en_HK
dc.identifier.scopusauthoridXu, B=24752310700en_HK
dc.identifier.scopusauthoridDeng, LF=7202007494en_HK
dc.identifier.scopusauthoridLuk, KDK=7201921573en_HK

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