Barabash Yu.A.

Objective is to detect bone mineral density along the shin according to «Esperanto» levels by Hounsfield's scale. Materials and methods. The analysis of density modification in 25 patients with pseudoarthrosis of tibia with predominant localization in a lower one-third of bone has been carried out. Results. By means of computed tomography it has been revealed that the bone tissue density of the tibia in the process of false joint union when using the compressive variant of combined transosseous osteosynthesis has changed according to the regularity reproducing phase character of the accumulation of mineral substances in the bone. Conclution. The growth of mineral density of the bone tissue during treatment spreads in the directions from proximal and distal metaepiphyses to the zone of pseudoarthrosis knitting

The article deals with new treatment technique in fractures of shin bones. It combines ideal reduction of damaged bone with reposition device without transition of transosseous elements through muscular masses, adequate fixation of bone fragments and change of biomechanical efforts in apparatus according to reparative osteogenesis phases. It is performed due to application of external fixation apparatus

Expansion of indications for surgery and plate osteosynthesis of long bones points to increased number of complications caused by instability of fragments, that can be associated in their turn with constructive features or iatrogenic factors. Insufficient rigidity of fragment fixation is due to incorrect technical treatment and wrong choice of fixator. Biomechanical parameters of periosteal fixation rigidity have been experimentally proved, depending on fixator lever

Impact of ecological factors and chronic intoxications on an organism is not accounted in treatment of bone injuries. The more significant osseous tissue modifications arise in case of fluoric intoxication accompanied by structural bone modifications. The main structural changes of more and less variability by mineral density of similar shin-bone zones of rabbit at fluorosis have been revealed in the research.