title: Incorporating corrosion measurement in hip wear simulators: An added complication or a necessity?
abstract: Corrosion is not routinely considered in the assessment of the degradation or the lifetime of total hip replacement bearing surfaces. Biomechanical simulations are becoming ever more complex and are taking into account motion cycles that represent activities beyond a simple walking gait at 1 Hz, marking a departure from the standard ISO BS 14242. However, the degradation is still very often referred to as wear, even though the material loss occurs due to a combination of tribological and corrosion processes and their interactions. This article evaluates how, by incorporating real-time corrosion measurements in total hip replacement simulations, pre-clinical evaluations and research studies can both yield much more information and accelerate the process towards improved implants.
authors.affiliation: Institute of Functional Surfaces, School of Mechanical Engineering, University of Leeds, Leeds, UK a.neville@leeds.ac.uk.
authors.forename: Anne
authors.initials: A
authors.lastname: Neville
authors.affiliation: Institute of Functional Surfaces, School of Mechanical Engineering, University of Leeds, Leeds, UK National Physical Laboratory (NPL), Teddington, UK.
authors.forename: James
authors.initials: J
authors.lastname: Hesketh
authors.affiliation: Institute of Functional Surfaces, School of Mechanical Engineering, University of Leeds, Leeds, UK.
authors.forename: Andrew R
authors.initials: AR
authors.lastname: Beadling
authors.affiliation: Institute of Functional Surfaces, School of Mechanical Engineering, University of Leeds, Leeds, UK.
authors.forename: Michael G
authors.initials: MG
authors.lastname: Bryant
authors.affiliation: Institute of Functional Surfaces, School of Mechanical Engineering, University of Leeds, Leeds, UK.
authors.forename: Duncan
authors.initials: D
authors.lastname: Dowson
mesh_terms: D003343:Corrosion; D017276:Friction; D006622:Hip Prosthesis; D006801:Humans; D008153:Lubrication; D008422:Materials Testing / Q000379:methods*; D019216:Metals, Heavy; D008954:Models, Biological; D013499:Surface Properties
chemical_list: D019216:Metals, Heavy
keywords: Hip simulators; joint simulators; surfaces; tribological processes; tribology of materials