Abstract
Evaluation of the bone regenerate maturation in 21 patients, aged 27 – 66 years, with closed shoulder fractures was performed in the course of treatment by Ilizarov technique according to the rate of blood supply velocity at functional load and by the value of that load. Examination was performed in 1 and 2 weeks as well as in 1 and 2 months after fixation. Within the first 2 weeks the bone fragments micro mobility at 10 kgF axial load on the extremity made up 194±42 µm. Subsequently as the regenerate became compact the bone fragments micro mobility decreased up to 53±13 µm (p≤0.02). During the fixation period the load tolerance increased from 5 to 15 kgF. The threshold of load tolerance was detected by the occurrence of unpleasant feelings the regenerate zone and increased rate of blood circulation in the vessels. At the end of fixation period the rate of blood circulation was decreased by 2 times and practically did not change at increasing loads confirming the formation of the protection system for circulatory bed in the bone regenerate.
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