Two different groups of hydroxyapatite (HA) coated and uncoated porous titanium implants, 250-350 μm and 500-700 μm diameter beads, were press-fit in femoral canine cancellous bone. After 12 weeks, the dogs were euthanized and histomorphometric backscattered electron microscopy studies were carried out. Comparing HA-coated versus uncoated implants in the 250-350 μm bead diameter group percentage of bone (P=0.01) and bone index (P=0.01), were higher in the HA-coated implants. Comparing HA-coated versus uncoated implants in the 500-700 μm bead diameter group bone ingrowth (P=0.01) and bone depth penetration (P=0.008), were higher in HA-coated samples. It can be concluded that the HA coating was an effective method to improve bone formation and ingrowth in the porous implants.
The effect of hydroxyapatite on bone ingrowth into porous-coated titanium implants
Pegreffi F.;
2002-01-01
Abstract
Two different groups of hydroxyapatite (HA) coated and uncoated porous titanium implants, 250-350 μm and 500-700 μm diameter beads, were press-fit in femoral canine cancellous bone. After 12 weeks, the dogs were euthanized and histomorphometric backscattered electron microscopy studies were carried out. Comparing HA-coated versus uncoated implants in the 250-350 μm bead diameter group percentage of bone (P=0.01) and bone index (P=0.01), were higher in the HA-coated implants. Comparing HA-coated versus uncoated implants in the 500-700 μm bead diameter group bone ingrowth (P=0.01) and bone depth penetration (P=0.008), were higher in HA-coated samples. It can be concluded that the HA coating was an effective method to improve bone formation and ingrowth in the porous implants.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
