Näytä suppeat kuvailutiedot

dc.contributor.authorHäkkinen, Arja
dc.contributor.authorBorg, Håkan
dc.contributor.authorHakulinen, Mikko
dc.contributor.authorJurvelin, Jukka
dc.contributor.authorAnttila, Esa
dc.contributor.authorParviainen, Tapani
dc.contributor.authorKiviranta, Ilkka
dc.date.accessioned2012-11-19T07:30:22Z
dc.date.available2012-11-19T07:30:22Z
dc.date.issued2011
dc.identifier.citationHäkkinen, A., Borg, H., Hakulinen, M., Jurvelin, J., Anttila, E., Tapani, P., & Kiviranta, I. (2011). Bone mineral density of the proximal femur after hip resurfacing arthroplasty: 1-year follow-up study. BMC Musculoskeletal Disorders, 12 (May 19), 100. doi:doi:10.1186/1471-2474-12-100 Retrieved from http://www.biomedcentral.com/1471-2474/12/100
dc.identifier.urihttp://dx.doi.org/10.1186/1471-2474-12-100
dc.identifier.urihttps://jyx.jyu.fi/handle/123456789/40353
dc.description.abstractAbstract Background Hip resurfacing arthroplasty (HRA) is considered a bone-preserving procedure and may eliminate proximal femoral stress shielding and osteolysis. However, in addition to implant-related stress-shielding factors, various patient-related factors may also have an effect on bone mineral density (BMD) of the proximal femur in patients with HRA. Thus, we studied the effects of stem-neck angle, demographic variables, and physical functioning on the BMD of the proximal femur in a one-year follow-up. Methods Thirty three patients (9 females and 24 males) with a mean (SD) age of 55 (9) years were included in the study. BMD was measured two days and 3, 6, and 12 months postoperatively and 10 regions of interest (ROI) were used. Stem-neck angle was analyzed from anteroposterior radiographs. Results Three months postoperatively, BMD decreased in six out of 10 regions of interest (ROI) on the side operated on and in one ROI on the control side (p < 0.05) compared to the second postoperative day. At 12 months, BMD had increased in 7 ROIs on the operated side and one ROI on the control side (all p < 0.001). Correlation was found between the stem-neck angle and BMD in ROIs 2, 3, 7, and 9 (r = 0.36 - 0.61). In multiple regression analysis, stem-neck angle, age, sex, body mass index, and walking distance did not explain the BMD changes. Conclusions After an early drop, the BMD of the upper femur was restored and even exceeded the preoperative level at one year follow-up. From a clinical standpoint, the changes in BMD in these HRA patients could not be explained by stem-neck angle or patient related factors.
dc.language.isoeng
dc.publisherBioMed Central (BMC)
dc.relation.ispartofseriesBMC Musculoskeletal Disorders
dc.subject.otherbone mineral densityen
dc.subject.othersurgeryen
dc.subject.otherluuntiheysfi
dc.subject.otherlonkan pinnoiteleikkausfi
dc.titleBone mineral density of the proximal femur after hip resurfacing arthroplasty: 1-year follow-up study
dc.typeArticle
dc.identifier.urnURN:NBN:fi:jyu-201804202273
dc.contributor.laitosTerveystieteiden laitosfi
dc.contributor.laitosDepartment of Health Sciencesen
dc.type.urihttp://purl.org/eprint/type/JournalArticle
dc.identifier.doi10.1186/1471-2474-12-100
dc.date.updated2012-11-15T14:50:22Z
dc.rights.holderArja Häkkinen et al.; licensee BioMed Central Ltd.
dc.type.coarjournal article
dc.description.reviewstatuspeerReviewed
dc.relation.issn1471-2474
dc.type.versionpublishedVersion
dc.rights.copyright© 2011 Häkkinen et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
dc.rights.accesslevelopenAccessfi
dc.rights.urlhttp://creativecommons.org/licenses/by/2.0


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Näytä suppeat kuvailutiedot

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