[The use of magnetic therapy in the treatment of children with lower micrognathia using compression-distraction osteosynthesis].

Purpose: To study the effect of magnetic therapy on the formation of distraction regenerate of the lower jaw in patients with lower micrognathia.

Materials and methods: The study comprised 159 patients with inferior micrognathia of congenital and acquired etiology. The patients were divided into 2 groups. The main group consisted of 112 patients who received magnetic therapy: 55 patients with congenital micrognathia and 57 patients with acquired micrognathia. The control group included 47 patients who did not undergo magnetic therapy: 20 patients with congenital micrognathia and 27 patients with acquired micrognathia. Magnetic therapy was performed daily starting from day 1 or 2 after surgery. Ultrasound monitoring began on the 7th day of distraction and was carried out every 3-4 days, which made it possible to assess the dynamics of the formation of the distraction regenerate.

Results: Ultrasound examination on the 7th day of distraction revealed that in the main group the number of distraction regenerates of the normotrophic type was 36.5%, hypotrophic type 18%, hypertrophic type 54.5%. In the control group, the corresponding rates were 53%, 31% and 22%.

Conclusion: Magnetic therapy induces osteogenesis and accelerates the maturation of the distraction regenerate. This makes it possible to accelerate the pace of distraction without reducing the quality of the regenerate.