REPARATIVE OSTEOGENESIS IN GROWING THIGH-BONES OF HAMSTERS AFTER MAKING DIAPHYSEAL FORAMINA AND INFLUENCE OF LOW-FREQUENCY VIBRATION (PRELIMINARY RESEARCH)

Abstract

The article is devoted to the study of development of reparative osteogenesis at the healing of bone wounds with and. without using of vibration. Experiments were performed in 10 hamsters of more than 45 days. They had. foramen made manually in lower part of diaphysis of thigh-bone by the drill of 1,5 mm. in diameter. In one day in 5 animals we realized stimulation of osteogenesis by directional mechanical oscillations with frequency 10 Hz, amplitude 0,3 mm. and. exposure 2 minutes. After euthanasia of hamsters of 48, 50, 66, 73 and. 90 days we revealed formation of endosteal bone reclaim in the area of perforating foramen on histological sections. Also in 5 animals after 3-15 seances of vibration in the zone of greater trochanter we registered periosteal osteogenesis on lateral surface of thigh-bones in their lower parts that caused local 2-3 times thickening of cortical plate in comparison with control segment of cortical plate.

Keywords

• thigh
• diaphyseal foramen
• vibration
• reparative osteogenesis