Finite elemental analysis of local osteoporosis formation in the surgical treatment of fubilar fractures

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Abstract

Background. When providing surgical medical care to patients with fibular fractures, one of the most common types of treatment is fixing the fracture area with a metal plate with screws during metallosteosynthesis surgery. During treatment, bone tissue is often thinned in the area of the fracture, which significantly increases the duration of treatment. Aim. Establishment of the mechanism of formation of osteoporosis in the fracture area after the operation of osteosynthesis of the fibula. Material and methods. The finite element method is used to simulate the destruction process using ANSYS. Results. A comparative study of the location of formation of focal osteoporosis formed in the fracture area of the distal part of the fibula diaphysis, under a metal plate installed during osteosynthesis, and the area of formation of maximum equivalent loads in the experimental mathematical model of the stress-strain state revealed complete similarity of the location. Conclusions. The formation of a zone of local osteoporosis in the area of a fibular fracture after osteosynthesis surgery is explained by a combination of factors, which are the presence of a fibular fracture fixed with metal screws with a metal plate, the support of the foot on the foot with pressure on the fibula. The zone of local osteoporosis in the area of the fibula fracture after osteosynthesis surgery occurs from the compression of compact plates of the fracture edges with limited mobility under the metal fixing plate.

About the authors

Konstantin N. Krupin

Moscow Region Bureau of Forensic Medical Examination

Author for correspondence.
Email: konst.inn@gmail.com
ORCID iD: 0000-0001-6999-8524

Candidate of Medical Sciences, Assoc. Prof. of the Mitishinskii Department of the Moscow Region Bureau of Forensic Medical Examination

Russian Federation, Moscow

Maxim A. Kislov

I.M. Sechenov First Moscow State Medical University (Sechenov University)

Email: smedik@gmail.com
ORCID iD: 0000-0002-9303-7640

Dr. Sci. (Med.), Assoc. Prof., Prof., I.M. Sechenov First Moscow State Medical University

Russian Federation, Moscow

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Supplementary files

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2. Fig. 1. Radiograph of the lower third of the fibula and developed focal osteoporosis in the fracture area after osteosynthesis surgery with a metal plate

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3. Fig. 2. Image of the equivalent load distribution in a titanium plate under experimental loading

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4. Fig. 3. Image of the load distribution in the fibula under experimental loading

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Copyright (c) 2020 Krupin K.N., Kislov M.A.

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