title: Bone-implant interface mechanics of in vivo bio-inert ceramics.
abstract: We have previously demonstrated that there was no significant difference between the affinity of bone to bio-inert ceramics and stainless steel in a histological study. In this study, the bone-implant interface shear strength of alumina ceramics (Al2O3), zirconia ceramics (ZrO2), stainless steel (SUS316L) and sintered hydroxyapatite (HA) were compared in 19 dogs using a transcortical push-out model of the femur 4 and 12 wk after implantation. The interface shear strength of HA was significantly greater than that of alumina ceramics, zirconia ceramics and stainless steel (P < 0.001). There was no significant difference between bio-inert ceramics and stainless steel.
authors.affiliation: Department of Orthopaedic Surgery, Faculty of Medicine, Kyushu University, Fukuoka, Japan.
authors.forename: K
authors.initials: K
authors.lastname: Hayashi
authors.forename: T
authors.initials: T
authors.lastname: Inadome
authors.forename: H
authors.initials: H
authors.lastname: Tsumura
authors.forename: T
authors.initials: T
authors.lastname: Mashima
authors.forename: Y
authors.initials: Y
authors.lastname: Sugioka
mesh_terms: D000537:Aluminum Oxide; D000818:Animals; D001672:Biocompatible Materials; D001696:Biomechanical Phenomena; D002516:Ceramics; D004285:Dogs; D017886:Durapatite; D005269:Femur / Q000000981:diagnostic imaging / Q000473:pathology / Q000601:surgery; D007595:Joint Prosthesis; D008422:Materials Testing; D011859:Radiography; D013193:Stainless Steel; D015040:Zirconium
chemical_list: D001672:Biocompatible Materials; D013193:Stainless Steel; D017886:Durapatite; D015040:Zirconium; D000537:Aluminum Oxide; C028541:zirconium oxide