Head-neck taper corrosion in hip arthroplasty
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(Published version)
Date
2015
Authors
Hussenbocus, S.
Kosuge, D.
Solomon, L.
Howie, D.
Oskouei, R.
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Journal article
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BioMed Research International, 2015; 2015:758123-1-758123-9
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S. Hussenbocus, D. Kosuge, L. B. Solomon, D. W. Howie, and R. H. Oskouei
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Abstract
Modularity at the head-neck junction of the femoral component in THA became popular as a design feature with advantages of decreasing implant inventory and allowing adjustment of leg length, offset, and soft tissue balancing through different head options. The introduction of a new modular interface to femoral stems that were previously monoblock, or nonmodular, comes with the potential for corrosion at the taper junction through mechanically assisted crevice corrosion. The incidence of revision hip arthroplasty is on the rise and along with improved wear properties of polyethylene and ceramic, use of larger femoral head sizes is becoming increasingly popular. Taper corrosion appears to be related to all of its geometric parameters, material combinations, and femoral head size. This review article discusses the pathogenesis, risk factors, clinical assessment, and management of taper corrosion at the head-neck junction.
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Copyright © 2015 S. Hussenbocus et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.