Bone-implant interface mechanics of in vivo bio-inert ceramics.
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.
Hayashi
K
K
Department of Orthopaedic Surgery, Faculty of Medicine, Kyushu University, Fukuoka, Japan.
Inadome
T
T
Tsumura
H
H
Mashima
T
T
Sugioka
Y
Y
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
D001672:Biocompatible Materials; D013193:Stainless Steel; D017886:Durapatite; D015040:Zirconium; D000537:Aluminum Oxide; C028541:zirconium oxide