Buryanov O. A., Kvasha V. P., Gliba G. G., Karpinsky M. Yu., Yaresko O. V.
ANALYSIS OF STRESS DISTRIBUTION UNDER COMPRESSIVE LOAD IN A MODEL OF A LOWER LEG WITH A MULTIFRAGMENTARY FRACTURE OF THE PROXIMAL END OF THE TIBIA WITH DIFFERENT OSTEOSYNTHESIS OPTIONS
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About the author:
Buryanov O. A., Kvasha V. P., Gliba G. G., Karpinsky M. Yu., Yaresko O. V.
Heading:
METHODS AND METHODOLOGIES
Type of article:
Scientific article
Annotation:
Fractures of the proximal epimetaphysis of the tibia are the most common fractures in the knee joint area. Double fixation with plates is considered the gold standard, but recent studies have found no significant difference between the use of single and double plates. The aim is to investigate the stress-strain state of a model of the lower leg with a comminuted fracture of the proximal end of the tibia under various options for its osteosynthesis with periosteal plates under the influence of compressive load. Under the influence of vertical compressive load, three osteosynthe sis options were studied: a plate on the medial side, on the lateral side, and two plates on both sides. The stresses in the model with two plates slightly exceed the minimum values for unilateral models but differ significantly from the maximum values. The plate applied to the lateral side ensures the lowest level of stress on all areas of the tibia, except for bone fragments in the fracture zone. The plate on the medial side ensures minimal stress on the screws in the metaphyseal area, while the plate on the lateral surface minimises stress on both the plate itself and the screws in the diaphysis. Two plates ensure uniform stress distribution between the elements of the metal structure. The model of osteosynthesis with two plates enables the application of stress to the bone elements of the model, with the level of stress at all control points occupying an intermediate position compared to models with unilateral plate placement. The plate provides a lower level of stress in bone fragments in the fracture zone on the medial side. On all other elements of the tibia, the minimum stress level is determined by osteosynthesis with a plate on the lateral side. Uniform stress distribution between the metal structure elements is ensured by osteosynthesis with two plates.
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Bibliography:
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Publication of the article:
«Bulletin of problems biology and medicine», Issue 2,177, 329-343 pages, index UDC 616.718.5/.6-001.5-089.813:613.65]:004.492](045)
