[Effect of the impulse magnetic field on the growth bone plates in experimental animals].

The influence of impulse magnetic field (1.5 T) on growth bone plates of the rabbit has been studied. It has been found that this field produces the inhibitory action on the functional activity of growth bone plates.

[Role of hormonal factors in the regulation of bone tissue metabolism in children with cerebral palsy]. / Rol' gormonal'nykh faktorov v reguliatsii obmena kostnoi tkani u detei s tserebral'nymi paralichami.

In the article are presented the results of examination of 98 patients (aged 6-16 years) with infantile cerebral paralysis. There were used X-ray and radioimmune investigations of bone age, enchondral ossification, state of foot bone structure and blood concentration of "osteotropic" hormones. Bone age corresponded mainly to the passport one; ossification rate overtake and deceleration have been revealed in a third of the examined children and concentric atrophy in 30% patients. Structural disturbances of osseous tissue as the different forms of osteoporosis have been detected in 89.5% cases. There have been stated direct correlation between the frequency of disturbances and the form of infantile cerebral paralysis. There have been noted reliable increase of hydrocortisone level and significant decrease of somatotropic hormone concentration (by 70% and 3.5-3.7 times as compared with the control) and sexual differences in concentrations of osteotropic hormones. The results are discussed from the point of view of neurohumoral relation disturbances and the presence of vegetative dystonia syndrome with predominance of sympathetic-adrenal system activity.

[Pathogenesis of degenerative-dystrophic changes in the hip joint]. / K voprosu o patogeneze degenerativno-distroficheskikh izmenenii tazobedrennogo sustava.

The authors have examined 43 children by the method of radiotropic angiography, 27 of whom had various diseases of the hip joint area. The blood flow in the iliac vessels and the regional blood flow in the area of the affected vessels was studied before and after the operation making use of an osteotropic radiopharmacological drug (RPD) 99mT-phosphon. Independent of the character of the degenerative and dystrophic process in the hip joints there was a reduction in the intensity of the blood flow on the affected side reaching 15-30%, which was more expressed at stage 111 of coxarthrosis with no considerable changes after the operation. In the control group this difference was +/- 5%. The regional blood flow (RBF) in the area of the operation was reduced down to 37% before the operation and increased by 17-35% 6-8 months after the operation with the exception of the cases of dystrophic lesions of the neck when no increase in the RBF was observed. The authors come to the conclusion about a relationship between the deviation from the normal conditions in the intensity of the blood flow and the degenerative and dystrophic processes in the hip joints.

[Scintigraphy in postoperative coxarthrosis in children and adolescents]. / Stsintigrafiia pri posleoperatsionnom koksartroze u detei i podrostkov.

To optimize the therapeutic tactics in 21 patients aged 7 to 15 with postoperative coxarthrosis the authors have studied some characteristics of the regional blood flow and the metabolic processes in the area of the hip joints. The results that have been obtained point at the incentive of the regional blood flow and the metabolic processes in this disease. The changes in the processes under study during the postoperative period have been demonstrated.