الفهرس 
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Abstract
To evaluate the effect of autologous platelet rich plasma (PRP) for healing of femoral bone defect in dogs.
Twenty four adult mongrel dogs was used in this study, a 2-cm cortical segment of the right Femur was osteotectomized, and then fixed with an 8-hole Dynamic-Compression Plate. The animals were divided into two groups; group A (n=12) control group and group B (n=12) PRP group. All dogs were euthanized at 2, 4, 8 and 12 weeks. The operated femurs were harvested and the implantation site were assessed for bone healing by clinical, radiographical and histological examinations.
It was found that, osteoid bridging the gap at femur defect was noted in all specimens in the PRP groups at week 8 &12 while, in control group there was a minimal periosteal reaction at the bony edges of the defect.
In conclusion PRP increased bone healing at early stage.