抄録
Hydroxyapatite (HA) coated with β-tricalcium phosphate (β-TCP), HA and β-TCP with 60% porosity were implanted into the quadriceps femoris muscles of adult rabbits. These rabbits were sacrificed 4, 12 and 24 weeks after the implantation. The weight of HA was increased obviously after 4, 12 and 24 weeks. The biological hydroxyapatite containing carbonate was formed on the HA surface. The weight of β-TCP was slightly decreased after 24 weeks. The weight of β-TCP coated HA was scarcely changed, but the weight tended to increase at 24 weeks. Thus β-TCP coated HA behaved like β-TCP initially after implantation, and then behaved like HA in vivo.
