Clinical and epidemiological characteristics of transcondylar shoulder fractures in children

Annotation. Objective – to determine the clinical and epidemiological characteristics of supra- and trans-condylar fractures in children and its impact on the tactics of treatment of victims with similar traumatic injuries. To perform our study, we analyzed 255 cases transvalues shoulder fractures of the humerus in children. These victims were treated at the Lviv City Children's Clinical Hospital in the period from 2013 to 2017. The age of the victims ranged from 0.5 to 18 years. In the course of the work, the method of calculating the coefficient of the polychoric index of Pearson's connection was used. It was found that the most common extensor fractures occur when falling from a height with support on the arm. The analysis of the age structure of victims with condylar fractures in children showed that most often, this injury was found in victims aged 4–6 years (41.6%). Victims aged 16-18 (1.2%) were the least frequent in the distribution. The analysis by sex in the age groups indicated that most often this injury was found in girls aged 4–6 years (50.0%). Rarely due to condylar were fractures of the shoulder found in victims aged 16–18 years. In both the male and female groups, the victims of this age group were the least frequent. Thus, in pediatric patients due to condylar fractures of the humerus are most common in the age group of 4–6 years, more common in females. Rarely due to condylar fractures of the shoulder are diagnosed in persons of both sexes in infancy (up to 1 year) and older children (16–18 years).

Dynamics of the Formation of Protection for Circulatory Bed in Bone Regenerate

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.

Dynamics of the formation of protection for circulatory bed in bone regenerate

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 feel- ings 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.