The linear length of modern population’s young people hands phalanges according to X-ray osteometry and their correlations

More than a sufficient number of works are devoted to X-ray studies of the bones of the hand, its phalanges, and only a few works are devoted to the issues of the relationship of their parameters in the context of the general patterns of organization of the structural elements of the autopodia. The data of these studies do not create a unified idea of the correlation patterns of the metric parameters of the bones that form the human hand skeleton, while the study of this issue is of great theoretical and practical importance. The purpose of the study is the establish of the variability of X-ray steometric indicators of the length of the phalanxes of boys aged 17-21 and girls aged 16-20. The material of the study was 146 radiographs of the right and left hands of boys and girls obtained for diagnostic purposes when applying for trauma care. X-rays of both hands of patients with scanning also of the wrist joints were performed under conventional radiation protection conditions on a mobile X-ray unit MobileDaRt (Shimadzu, Japan). The distance from the X-ray source to the object of study corresponded to the generally accepted recommendations in X-ray osteometry. The images were automatically saved in the computer memory in the standard DICOM format. It was established that the average values of the radiographic linear lengths of the phalanges of the fingers and the overall average in boys were statistically significantly higher than those in girls. Finger-wise comparison of indicators between two sex-different populations also showed their highly significant differences in all phalanges without exception. Among the studied osteometric parameters, according to the results obtained, the smallest variability is inherent in the length of the proximal phalanges in girls. The general image established using the method of indirect X-ray osteometry of the I-V fingers phalanges length correlation values, showed their differences with the few data of other authors. It was concluded that the analysis of the limits of anatomical variability, due not only to various external and internal factors, but also methodological approaches and their comparison are of no less scientific importance than the analysis of the influence of only the different conditions and biological characteristics of the analyzed populations.