title: Head-neck taper corrosion in hip arthroplasty.
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.
authors.affiliation: Department of Orthopaedics and Trauma, Royal Adelaide Hospital, North Terrace, Adelaide, SA 5000, Australia.
authors.forename: S
authors.initials: S
authors.lastname: Hussenbocus
authors.affiliation: Department of Orthopaedics and Trauma, Royal Adelaide Hospital, North Terrace, Adelaide, SA 5000, Australia.
authors.forename: D
authors.initials: D
authors.lastname: Kosuge
authors.affiliation: Department of Orthopaedics and Trauma, Royal Adelaide Hospital and Centre for Orthopaedic and Trauma Research, The University of Adelaide, North Terrace, Adelaide, SA 5000, Australia.
authors.forename: L B
authors.initials: LB
authors.lastname: Solomon
authors.affiliation: Department of Orthopaedics and Trauma, Royal Adelaide Hospital and Centre for Orthopaedic and Trauma Research, The University of Adelaide, North Terrace, Adelaide, SA 5000, Australia.
authors.forename: D W
authors.initials: DW
authors.lastname: Howie
authors.affiliation: School of Computer Science, Engineering and Mathematics, Flinders University, Clovelly Park, SA 5042, Australia.
authors.forename: R H
authors.initials: RH
authors.lastname: Oskouei
mesh_terms: D019644:Arthroplasty, Replacement, Hip; D003343:Corrosion; D005260:Female; D005270:Femur Head / Q000378:metabolism* / Q000473:pathology*; D006622:Hip Prosthesis / Q000009:adverse effects*; D006801:Humans; D008297:Male; D011475:Prosthesis Failure