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The 6-Year Migration Characteristics of a Hydroxyapatite-Coated Femoral Stem A Radiostereometric Analysis Study
Umeå universitet, Medicinska fakulteten, Institutionen för kirurgisk och perioperativ vetenskap, Ortopedi.ORCID-id: 0000-0002-8818-3408
Vise andre og tillknytning
2012 (engelsk)Inngår i: The Journal of Arthroplasty, ISSN 0883-5403, E-ISSN 1532-8406, Vol. 27, nr 7, s. 1344-1348Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

A prospective cohort of 30 patients undergoing primary total hip arthroplasty for treatment of osteoarthritis was enrolled in a study to characterize the migration behavior of a clinically successful cementless stem. At 6 years, the mean subsidence of the stem was 0.63 mm (range, -0.33 to 3.68 mm); the mean rotation into retroversion was 1.41° (range, -1.33° to 7.48°). No stems had additional subsidence of more than 0.25 mm between 6 months and 6 years. The resultant mean subsidence between 2 and 6 years was 0.03 mm, which is below the limit measurable by radiostereometric analysis. The data demonstrate that subsidence of this cementless stem occurs within the first 6 months, after which there is persistent stabilization.

sted, utgiver, år, opplag, sider
Elsevier, 2012. Vol. 27, nr 7, s. 1344-1348
Emneord [en]
total hip arthroplasty, radiostereometric analysis, subsidence, stabilization
HSV kategori
Identifikatorer
URN: urn:nbn:se:umu:diva-54077DOI: 10.1016/j.arth.2011.12.002ISI: 000307317100014PubMedID: 22266049OAI: oai:DiVA.org:umu-54077DiVA, id: diva2:515638
Tilgjengelig fra: 2012-04-13 Laget: 2012-04-13 Sist oppdatert: 2018-06-08bibliografisk kontrollert

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