 | | Mechanics of Solids
A Journal of Russian Academy of Sciences | | Founded
in January 1966
Issued 6 times a year
Print ISSN 0025-6544
Online ISSN 1934-7936 |
Archive of Issues
| Total articles in the database: | | 13554 |
| In Russian (Èçâ. ÐÀÍ. ÌÒÒ): | | 8194
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| In English (Mech. Solids): | | 5360 |
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| K.A. Maryankin, I.M. Magomedov, L.V. Bessonov, S.I. Kireev, and D.V. Ivanov, "Modeling of Osteotomies of the First Metatarsal Bone on a Complete Foot Model in Normal and Osteoporotic Conditions," Mech. Solids. 60 (7), 5639-5647 (2025) |
| Year |
2025 |
Volume |
60 |
Number |
7 |
Pages |
5639-5647 |
| DOI |
10.1134/S0025654425604495 |
| Title |
Modeling of Osteotomies of the First Metatarsal Bone on a Complete Foot Model in Normal and Osteoporotic Conditions |
| Author(s) |
K.A. Maryankin (Saratov State University, Saratov, 410012 Russia)
I.M. Magomedov (Saratov State University, Saratov, 410012 Russia)
L.V. Bessonov (Saratov State University, Saratov, 410012 Russia)
S.I. Kireev (Saratov State University, Saratov, 410012 Russia)
D.V. Ivanov (Saratov State University, Saratov, 410012 Russia, ivanovdv.84@yandex.ru) |
| Abstract |
Hallux valgus deformity of the first toe (HV) is a widespread orthopedic pathology. The
prevalence of HV varies from 23 to 46% among the adult population. With severe deformity, surgical
intervention in the form of osteotomy of the first metatarsal (M1) remains the gold standard for the
treatment of HV. The most common M1 osteotomies are scarf and chevron. Previously, the strength
characteristics of these and other osteotomies were studied on isolated bone models and complete foot
models. However, in conditions of osteoporosis and considering the action of the main muscles of the
foot, this was not done. The biomechanical significance of osteoporosis is due to its negative effect on
the strength properties of bone tissue. In patients of the older age group, a simultaneous increase in the
frequency and severity of HV and osteoporosis is natural. This paper presents a new, experimentally
validated, improved biomechanical model of the foot. The model includes realistic geometry, bone, as
well as soft tissues, and ligamentous apparatus. The modeling considered the influence of the patient’s
body weight, Achilles tendon tension and the forces of the main five muscles of the foot. The developed model was used for a comparative analysis of the stress-strain state of scarf and chevron osteotomies M1 in normal condition and in osteoporosis of bone tissue. The stresses in the fragments of the
scarf osteotomy were higher than the stresses in the fragments of the chevron osteotomy by 15–21%
(on average by 18%). The stresses in the screws of the scarf osteotomy turned out to be higher than the
stresses in the screw of the chevron osteotomy by 21–33% (on average by 28%). With a decrease in the
quality of cortical bone tissue, equivalent stresses in both screws and fragments of M1 osteotomies
increase significantly (by 50–100%). The relative displacements of bone fragments also increase by
33–50%. It has been shown that both types of osteotomies provide sufficient stability and strength
under the studied loads, simulating the vertical position of the human body. |
| Keywords |
osteotomy, plantar pressure, equivalent stresses, biomechanical model of the foot, finite-element method, biomechanical modeling, scarf, chevron |
| Received |
15 August 2025 | Revised |
21 August 2025 | Accepted |
22 August 2025 |
| Link to Fulltext |
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