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International Orthopaedics
Published in: International Orthopaedics 4/2004

01-08-2004 | Original Paper

Comparison of wear and osteolysis in hip replacement using two different coatings of the femoral stem

Authors: Joaquin Sanchez-Sotelo, David G. Lewallen, William Scott Harmsen, Jeffrey Harrington, Miguel E. Cabanela

Published in: International Orthopaedics | Issue 4/2004

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Abstract

We compared the clinical and radiographic results of two matched series of total hip arthroplasties, one with hydroxyapatite-coated femoral stems, the other with a similar but porous-coated femoral stem. The prevalence of radiographic osteolysis was 16% in hips with hydroxyapatite-coated stems and 43% in hips with porous-coated femoral stems. In hips with hydroxyapatite-coated stems, osteolysis was always limited to Gruen zones 1 and 7. In contrast, distal osteolysis was present around 26% of the porous-coated stems. At 7 years, the survival-free rate of distal osteolysis was 100% in hips with hydroxyapatite-coated stems but 90% in hips with porous-coated stems (p=0.04). Circumferential hydroxyapatite coating of the femoral component reduced the occurrence of osteolysis and eliminated distal osteolysis at 5–10 years of follow-up. In addition, hydroxyapatite coating did not alter the wear rate.
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Metadata
Title
Comparison of wear and osteolysis in hip replacement using two different coatings of the femoral stem
Authors
Joaquin Sanchez-Sotelo
David G. Lewallen
William Scott Harmsen
Jeffrey Harrington
Miguel E. Cabanela
Publication date
01-08-2004
Publisher
Springer-Verlag
Published in
International Orthopaedics / Issue 4/2004
Print ISSN: 0341-2695
Electronic ISSN: 1432-5195
DOI
https://doi.org/10.1007/s00264-004-0558-x

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