Evaluation of Compression and Pull-out Strengths of the Callus Induced by Autogenous Cortical and Cancellous Bone Grafting in Dogs

Abstract

The aim of this study was to compare the pull and push resistance values of callus resulting from administration of autogenous cortical and cancellous bone grafts for the repairment of bone defects in dogs. Experiment was carried out on 12 female different breeds of dogs weighing between 25-30 kg and aged between 2-3 years. Under general anesthesia, a 0.7 cm segmental defect was performed in a right or left radius of dogs. The defects formed have been filled with autogenous cancellous bone graft in 6 dogs and with autogenous cortical bone graft in 6 dogs. At the ends of the 2(nd), 4(th) and 6(th) months two dogs of each group were sacrificed, grafted bones removed and the push and pull tests were performed. Test results showed that the push and pull values of the autogenous cancellous bone grafts were higher than those values of the autogenous cortical bone grafts.