SYSTEM FOR PLANNING AND MODELING INSTALLATION OPTIONS AND PREDICTING THE SUCCESS OF INSTALLATION OF FIXATION SYSTEMS AND ENDOPROSTHESES OF ELEMENTS OF THE VERTEBRAL-PELVIC COMPLEX Russian patent published in 2023 - IPC A61B34/10 

FIELD: medicine; traumatology and orthopedics.

SUBSTANCE: invention is intended for quantitative assessment of surgical treatment options for patients with diseases and injuries of elements of the vertebral-pelvic complex (VPC) based on x-ray studies in order to select one successful treatment option. A system is proposed for implementing a method in which sagittal and/or frontal balance parameters are calculated based on computed tomography and/or radiograph data, the preferred method of surgical correction is selected, in accordance with which one or more treatment options are planned by the doctor. According to the computed tomography data, using artificial intelligence, a solid model of the patient's VPC elements is automatically built, individual mechanical parameters of the patient's VPC elements are automatically determined and assigned, fixation systems and/or endoprostheses are virtually installed. Typical static force loads and fastening conditions simulating the movement of the patient's body are set. The combination of a solid model of VPC elements together with mechanical parameters, models of fixation elements and/or endoprostheses, force loads and fixation conditions is called a biomechanical model of the planned treatment option. Each treatment option planned by the doctor corresponds to one biomechanical model. For each of the constructed biomechanical models, a static problem of biomechanics is solved, which makes it possible to calculate and analyze the quantitative biomechanical characteristics of each treatment option planned by the doctor. Based on the solution of the biomechanics problem, one successful treatment option for the patient is selected. Data on symptoms, treatment and changes in the patient's quality of life are collected and accumulated in a database (DB). Based on a statistical analysis of similar clinical cases from the DB, the range of expected improvement in the quality of life is determined. After the operation, the expected and actual changes in the quality of life are compared.

EFFECT: group of inventions provides a quantitative assessment of the geometrical parameters of the VPC calculated from X-ray and/or CT, the strength characteristics of the "bone-implant" system based on the calculation and comparison with the threshold values of the greatest stresses, strains and displacements found for specific biological objects with an installed fixation system and/or implants and the quality of life of the patient after the treatment, as well as a statistical assessment of the quality of life of the patient (based on the Oswestry quality of life questionnaire) calculated on the basis of data from similar clinical cases.

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