MODELING OF THE SPINE COMPENSATORY RESPONSE TO DEFORMITY
https://doi.org/10.14531/ss2018.3.85-91
Abstract
Objective. To analyze mathematical model of the efficiency of the compensatory mechanism of the deformed spine.
Material and Methods. The developed basic kinematic model of the spine was used. The restoration of the position of the projection of the general center of mass (GCM) was mathematically modeled, and mechanogenesis of the spinal deformity and possibility of its compensation were evaluated. To assess the reliability of the mathematical model, spinal skiagrams taken from patients with clinically confirmed pathology and sagittal imbalance were used.
Results. On the basis of quantitative characteristics of the primary spine deformity of a certain clinical case and using the developed algorithm, it is possible to create a model of both a primary deformity and a compensatory response from intact segments of the spine taking into account the influencing factors. This makes it possible to use the proposed kinematic model in scientific research on predicting the course of various types of spinal deformities.
Conclusion. The proposed algorithms simulating the development of spinal deformities based on the restoration of the position of the GCM projection reflect their mechanogenesis and can be used to model various pathological conditions of the spine. A complete correction of the deformity does not mean a complete cure, since the required spinal fusion creates a new, prognostically less significant, but pathological situation.
About the Authors
A. V. Krutko
Novosibirsk Research Institute of Traumatology and Orthopaedics n.a. Ya.L. Tsivyan
Russian Federation
Russian Federation
DMSc, Head of Neurosurgery Department
Frunze str., 17, Novosibirsk, 630091, Russia
A. V. Gladkov
Novosibirsk Research Institute of Traumatology and Orthopaedics n.a. Ya.L. Tsivyan
Russian Federation
Russian Federation
DMSc, senior researcher
Frunze str., 17, Novosibirsk, 630091, Russia
V. V. Komissarov
Novosibirsk State Technical University
Russian Federation
Russian Federation
PhD in Physics and Mathematics, Associate Professor of the Department of Higher Mathematics
Karl Marks Prospekt, 20, Novosibirsk, 630073, Russia
N. V. Komissarova
Novosibirsk State Technical University
Russian Federation
Russian Federation
senior lecturer of the Department of Higher Mathematics
Karl Marks Prospekt, 20, Novosibirsk, 630073, Russia
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Review
For citations:
Krutko A.V., Gladkov A.V., Komissarov V.V., Komissarova N.V. MODELING OF THE SPINE COMPENSATORY RESPONSE TO DEFORMITY. Russian Journal of Spine Surgery (Khirurgiya Pozvonochnika). 2018;15(3):85-91. https://doi.org/10.14531/ss2018.3.85-91
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