Anatomical and Anthropometric Features of Bone Bodies Structures in Children with Idiopathic Scoliosis of Lenke III Type

Abstract

Objective. Lenke III type spinal curvature occurs in 11% of all types of deformities in idiopathic scoliosis. Knowledge of the features of the structure of the bone structures throughout the main curve of the deformity allows you to properly plan the installation of transpedicular supporting elements during the operation and carry out a specific sequence of correcting manipulations in order to achieve the optimal result.Purpose. To study the anatomical and anthropometric features of the bone structures of the vertebrae in children with idiopathic scoliosis, type lenke III, using a navigation device.Materials and Methods. The study included 23 patients with S-type idiopathic scoliosis type III according to the classification of L. Lеnke aged 14 to 18 years, of which 22 are female patients and 1 male. All children carried out spinal X-rays in standard projections (direct and lateral), multislice computed tomography, according to msct in the navigation unit measured anatomical and anthropometric indicators, certain parameters and coefficients were calculated mathematically.Results. The following patterns were determined: pronounced asymmetry of both the width and height of the bases of the arches of the vertebrae along the concave and convex sides of the deformity in the thoracic spine and moderately pronounced structural changes in the bone structures in the lumbar spine. Strong direct correlations between the asymmetry coefficient of the base areas of the arcs and the asymmetry coefficients of the width and height of the base of the arcs, as well as a direct correlation between the values of the rotational value of the apical vertebra and the asymmetry coefficient of the base areas of the arcs in the thoracic region were revealed. In the lumbar spine, only a directly proportional relationship was found between the asymmetry coefficient of the areas of the bases of the arches of the vertebrae and the coefficient of asymmetry of the heights of the bases of the arcs of the vertebrae.Conclusion. Ап analysis of the anatomical and anthropometric parameters of the bony structures of the vertebrae in children with idiopathic scoliosis of the lenke III type has made it possible to identify certain features, to establish patterns and correlations that characterize this variant of deformity.