title: Removal of the subchondral plate in acetabular preparation.
abstract: Retention of the subchondral plate during acetabular preparation in total hip replacement is believed to be an important part of modern cementing techniques. We have constructed a two-dimensional finite element analysis to assess the effect of retention and removal of this relatively stiff structure. The finite element analysis demonstrates increased stiffness and stress concentrations at the bone-cement interface that may have an adverse effect. Although further study is required, it may be that subchondral bone retention is not advantageous.
authors.affiliation: Department of Orthopaedics, University of Aberdeen Medical School, Foresterhill, Scotland. ort025@abdn.ac.uk
authors.forename: A G
authors.initials: AG
authors.lastname: Sutherland
authors.forename: S
authors.initials: S
authors.lastname: D'Arcy
authors.forename: D
authors.initials: D
authors.lastname: Smart
authors.forename: G P
authors.initials: GP
authors.lastname: Ashcroft
mesh_terms: D000077:Acetabulum / Q000601:surgery*; D019644:Arthroplasty, Replacement, Hip / Q000295:instrumentation / Q000379:methods*; D001696:Biomechanical Phenomena; D001843:Bone Cements; D003198:Computer Simulation; D004548:Elasticity; D020342:Finite Element Analysis; D006801:Humans; D016012:Poisson Distribution; D013314:Stress, Mechanical
chemical_list: D001843:Bone Cements