title: The influence of acetabular cup angle on the wear of "BIOLOX Forte" alumina ceramic bearing couples in a hip joint simulator.
abstract: The wear of "Biolox Forte" alumina ceramic bearing couples has been investigated at two different acetabular cup angles in a physiological hip joint simulator. All cups were set in the anatomical position of 45 degrees inclination in the M/L plane for the first two million cycles and then four of the six cups were re-aligned to 60 degrees for a further three million cycles. A "running-in" wear of 0.14 mm3 per million cycles was observed for the first million cycles, after which a steady state wear rate of 0.05 mm3 per million cycles was observed. Increasing the acetabular cup angle to 60 degrees did not significantly affect the wear rate.
authors.affiliation: School of Mechanical Engineering University of Leeds, LS2 9JT, U.K.
authors.forename: J E
authors.initials: JE
authors.lastname: Nevelos
authors.forename: E
authors.initials: E
authors.lastname: Ingham
authors.forename: C
authors.initials: C
authors.lastname: Doyle
authors.forename: A B
authors.initials: AB
authors.lastname: Nevelos
authors.forename: J
authors.initials: J
authors.lastname: Fisher