The interfacial strength in sputtering-hydroxyapatite-coating implants with arc-deposited surface.
Titanium columns (Ti-6A1-4V) were treated with arc-deposition to roughen the surface enough to anchor the bone, and then coated with hydroxyapatite (HA) at a thickness of 5 micro m by the sputtering technique. Columns were implanted into dog femurs, and fixation of columns to bone due to bone-ingrowth was assessed histologically and with the push-out test. The HA-coated columns were inserted in the shafts of the right femurs of 2 dogs. As a control, columns that were only arc-deposited (non-coated columns) were inserted into the left femurs. The interfacial strength was higher for the HA-coated columns than for the non-coated columns. Coating a rough surface with an HA layer using a sputtering technique reinforces interfacial strength between bone and implants.
Seno
Takahiro
T
Department of Veterinary Surgery I, School of Veterinary Medicine, Rakuno Gakuen University, Hokkaido, Japan.
Izumisawa
Yasuharu
Y
Nishimura
Ikuya
I
Maehara
Seiya
S
Yokoyama
Tokiko
T
Yamashita
Kazuto
K
Kotani
Tadao
T
D000818:Animals; D001846:Bone Development; D004285:Dogs; D017886:Durapatite; D005269:Femur / Q000502:physiology / Q000601:surgery* / Q000648:ultrastructure; D005270:Femur Head / Q000502:physiology / Q000601:surgery; D006622:Hip Prosthesis / Q000662:veterinary*
D017886:Durapatite