Özet:

Treatment of segmental defects of long bones is one of the most difficult problems in traumatology. The principles of distraction osteogenesis, which Dr. Ilizarov revealed in 1951, have gained a great popularity in the world. This experimental study was aimed at comparing clinically, radiographically and histopathologically the results of bifocal distraction osteogenesis (1 group) and monofocal distraction osteogenesis (2 group) in dogs. Four dogs were divided into two equal groups. In both groups, a 2 cm bone piece was removed from the diyafizer area of the left tube. In the first group the defect was preserved and proximal corticosteroid was performed. In the second group, the defect was immediately closed. The bone transportation and distraction process was carried out for a period of 20 days of 0.5 mm every 12 hours after a seven-day waiting period. All the events were completed in the 87th day. Clinically, the division in group 2 was easier than the bone transportation process in group 1. In some cases, pin path infections observed at different degrees were more than in group 1 than in group 2. Radiographic and histopathological examinations of Heiple and Ark. with Lane and Ark. The criteria were taken into account. The Mann-Whitney U test was used for statistical assessments. Radiographic and histopathological assessments indicate statistically the proximity of the 1st group and the 2nd group are meaningless (p>0.05), and the distal of the 1st group and the 2nd group are meaningless (p<0. 01) there was a difference As a result, in the bone defects of the tibia up to 2 cm; in bipolar distraction osteogenesis distal coating deficiency and additional surgery, in monofocal distraction osteogenesis and in premature consolidation, both distraction osteogenesis can be successfully applied.

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