Научный журнал Моделирование, оптимизация и информационные технологииThe scientific journal Modeling, Optimization and Information Technology
cетевое издание
issn 2310-6018

3D modeling and biomechanical study of the lumbar spine in children with congenital scoliosis after surgical treatment

Begun P.I.   Safronova A.A.   Vissarionov S.V.   Tikhonenkova O.V.  

UDC УДК 612.76
DOI: 10.26102/2310-6018/2021.33.2.019

  • Abstract
  • List of references
  • About authors

In domestic and foreign publications, there are no biomechanical studies of the correction of the structures of the musculoskeletal system in patients of early childhood. In addition to the frequency of congenital deformities of the spine, the relevance of the work is due to the progressive nature of the course of the disease, the severity and rigidity of deformities, as well as the formation of compensatory curvature arcs. The most frequent complications associated with metal structures are their destabilization due to endofixator fatigue fractures, bone resorption around screws, destruction of the cortical tissue of the arch roots. The construction of computer three-dimensional models is based on the data of computed tomography of patients with congenital deformity of the lumbar spine. Computer geometric models include the bodies of four vertebrae. Models are built in the computer programs Mimics Medical and 3-matic Medical, then exported to the SolidWorks software package. It assembles all the individual elements, and adds: ligamentous apparatus, intervertebral discs, and metal structures. Bone structures are schematized by two homogeneous isotropic layers: cortical and spongy. A method for studying the stress-strain state in the lumbar spine-endofixator system has been developed for different motor modes and different bone resorption around the screws. Biomechanical studies of the state of the lumbar spine in a three-year-old patient after surgery with an installed endofixator were carried out.

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Begun Petr Iosifovich
Dr. Sci. Tech Professor
Email: petrbegun1114@mail.ru

State University of Aerospace Instrumentation

Saint-Petersburg, Russian Federation

Safronova Anna Andreevna

Email: annasaf39945844@gmail.com

State University of Aerospace Instrumentation

Saint-Petersburg, Russian Federation

Vissarionov Sergey Valentinovich
Dr. Sci.Med Professor
Email: vissarionovs@gmail.com

H.Turner National Medical Research Center for Сhildren's Orthopedics and Trauma Surgery

Saint-Petersburg, Russian Federation

Tikhonenkova Oksana Vladimirovna
PhD

State University of Aerospace Instrumentation

Saint-Petersburg, Russian Federation

Keywords: spine, congenital scoliosis, transpedicular fixation, stress, deformity, 3d modeling

For citation: Begun P.I. Safronova A.A. Vissarionov S.V. Tikhonenkova O.V. 3D modeling and biomechanical study of the lumbar spine in children with congenital scoliosis after surgical treatment. Modeling, Optimization and Information Technology. 2021;9(2). Available from: https://moitvivt.ru/ru/journal/pdf?id=982 DOI: 10.26102/2310-6018/2021.33.2.019 (In Russ).

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Revised 26.07.2021

Accepted 30.07.2021

Published 02.08.2021