Mathematical substantiation of the main symptomschoice in diagnostics of natal injuryconsequences of the cervical spine

Abstract

We have studied 217 charts of the children treated in the surgical department of the Republican Mother and ChildCenter that have a diagnosis of a chronic rotational subluxation of C1. All the sick children underwent x-ray examination of C1 through the open mouth, a rheoencephalographic procedure. As a result of systematization of complaints, diseaseanamnesis, objective examination and results of instrumental survey methods, 27 factors related to the disease were collected. The task was to find out the most important factors determining the severity of the disease. Algorithm for solving the task: • study of tables of initial experimental data and measures of tightness of linear regression between factors; • construction, analysis of correlation matrices, splitting of factors into pleiads; • application of expert methods - direct ranking and weighting factors of importance; • tabulation of weakly correlated factors. The mathematical analysis ledto reduction the dimension of the factor space from the initial 27 to 5 units without changing the information capacity. Conclusions: As a result of the calculations, we have identified 5 factors carrying the main information load in the case of a rotational subluxation of the C1 vertebra. These factors were: data from the rheoencephalographic study, perinatal encephalopathy in the anamnesis, the age of the child, visual impairment, the presence of complications such as vertebrobasilar insufficiency, syncope, tension headache. Based on these five factors, it is planned to build a probabilistic model for the severity of the disease.