THE EFFECT OF ELECTROMAGNETIC WAVES OF THZ-BAND ON BONE TISSUE REGENERATION IN LIMB FRACTURES IN CONDITIONS OF TRANSOSSEOUS OSTEOSYNTHESIS (EXPERIEMENTAL STUDY)
Clinical and radiological results of electromagnetic waves of THz-band effect on bone tissue regeneration in experiment have been studied in this work. The experiment was performed in 15 rats of Wistar line aged from 6 to 8 months. Femoral fracture was modeled in the mid-shaft and was fixed by osteosynthesis device. In the first series of the experiment the males underwent femoral fixation by device for fracture healing after osteotomy. In the second series the males obtained impact of THz-band electromagnetic waves after osteosynthesis to stimulate osteogenesis. In the third series the females aged 3 months (3 months prior to operative intervention) underwent ovarioectomy followed by stimulation after osteotomy and osteosynthesis. “Orbita” device of EHF-therapy was used for osteogenesis stimulation. It was found out that on the 28th day in the 2nd series the periostal reaction was slightly defined at the fracture level, the shadows got compacted and their density was close to the same of the cortical plates of the fragments or the shadows merged with them. By that time the common cortical plates had formed that was considered the criteria of the fracture healing. In the 1st and 3rd series of the experiment the fracture healing was observed by the 35th day of fixation with the device. The effect of electromagnetic waves in THz-band on bone tissue regeneration in the experimental group was evaluated as positive for reduction of fixation length.