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199406, Санкт-Петербург, ул.Гаванская, д. 49, корп.2

ISSN 1999-6314

Российская поисковая система

Vol. 20, Art. 31 (pp. 373-384)    |    2019       

Mathematical background of transosseus osteosynthesis with short wires with open-ended exterior supports
Kashansky Y.B., Kondratiev I.P., Kucheev I.O., Polikarpov A.V., Savkin N.M.

SPB I. I. Dzhanelidze Research Institute of Emergence Medicine

Brief summary

In recent years, there are more and more followers of the implementation of minimally invasive treatment methods in medicine. A similar trend is observed in the modern traumatology. Besides that, the financial component of administering of first aid to the injured is not the least in medicine. In this respect, it is of material interest to apply various systems and devices for fixing fractures using short divergent wires fixed in the open-ended exterior supports. The study of this issue in the literature was given not the attention requisite. We have attempted to bridge this gap. The presented work provides the scientific basis for the implementation of this type of osteosynthesis. It is provided its mathematical background. The optimal angles and planes of introduction of the wires has been determined. It is shown the dependence of the bone - construction joint strength on their size and introduction form. To study the strength characteristics and clinical usage potential for osteosynthesis of the wire systems with an open-ended exterior supports. Two alternative constructions were brought under study: 1. Single and parallel arrangement of wires (rods). 2. The beam arrangement of wires (rods). In addition, a comparison was made of alternative constructions in terms of their functional advantages. The comparison was made under the same working conditions as applied to the position of the mechanics of a deformable solid. To study the maximum rigidity of the system and its maximum strength, mathematical calculations were carried out using well-known formulas for their determination. The data obtained allowed us to conclude that single and parallel systems are more pliable than beam systems. The angle between them should not be less than 6 ?. In this case, the displacement of the nodal point in the system even from two spokes with an angle of 20 ? is almost two times less than that of a rod with a diameter of 5 mm. In addition, with an increase in the number of spokes and planes formed by them, the strength of the system increases.

Key words

traumatology, minimally invasive osteosynthesis, K-wires, mathematical background for osteosynthesis.

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Свидетельство о регистрации сетевого электронного научного издания N 077 от 29.11.2006
Журнал основан 16 ноября 2000г.
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