title: The skeletal response to matt and polished cemented femoral stems.
abstract: We studied the effect of the surface finish of the stem on the transfer of load in the proximal femur in a sheep model of cemented hip arthroplasty. Strain-gauge analysis and corresponding finite-element (FE) analysis were performed to assess the effect of friction and creep at the cement-stem interface. No difference was seen between the matt and polished stems. FE analysis showed that the effects of cement creep and friction at the stem-cement interface on femoral strain were small compared with the effect of inserting a cemented stem.
authors.affiliation: Royal Adelaide Hospital and the University of Adelaide, South Australia, Australia.
authors.forename: D S
authors.initials: DS
authors.lastname: Barker
authors.forename: A W
authors.initials: AW
authors.lastname: Wang
authors.forename: M F
authors.initials: MF
authors.lastname: Yeo
authors.forename: N S
authors.initials: NS
authors.lastname: Nawana
authors.forename: S A
authors.initials: SA
authors.lastname: Brumby
authors.forename: M J
authors.initials: MJ
authors.lastname: Pearcy
authors.forename: D W
authors.initials: DW
authors.lastname: Howie
mesh_terms: D000818:Animals; D001696:Biomechanical Phenomena; D001843:Bone Cements; D019245:Compressive Strength; D019544:Equipment Failure Analysis; D005269:Femur / Q000503:physiopathology*; D020342:Finite Element Analysis; D006622:Hip Prosthesis / Q000009:adverse effects*; D008422:Materials Testing; D016348:Osseointegration; D011474:Prosthesis Design; D011475:Prosthesis Failure; D011897:Random Allocation; D012756:Sheep; D013499:Surface Properties; D016019:Survival Analysis; D013718:Tensile Strength; D013997:Time Factors; D016474:Weight-Bearing
chemical_list: D001843:Bone Cements