Structural and functional studies of bioobjects prepared from femoral heads

I. A. Kirilova, Yury Petrovich Sharkeev, V. T. Podorozhnaya, K. S. Popova, P. V. Uvarkin

Результат исследований: Материалы для книги/типы отчетовМатериалы для конференции

1 Цитирования (Scopus)

Аннотация

Results of examination of physicomechanical characteristics of samples of medial femoral head cuts are presented. The samples of medial femoral head cuts resected in 6 patients with coxarthrosis in primary endoprosthetic replacement of a coxofemoral joint have been tested for micro-and nanohardness. Young's modulus and elemental composition of bone tissue have been investigated. To estimate the architectonics of cancellous tissue of the femoral head, adjacent cuts of the same patient have been analyzed. The porosity of bone tissue was estimated from macroscopic images obtained using macrophotography. The total porosity is calculated as the ratio of the total length of straight line segments overlapping pores to the total length of secants. A three-point bending test of the samples has shown that their strength changed from 0.187 to 1.650 MPa and their elasticity modulus changes from 1.69 to 8.15 MPa. The microhardness of the samples changes in the range 220-265 MPa and the average microhardness of medial femoral head cuts is 240 MPa. The elemental composition of medial femoral head cuts is represented by basic Ca, P, O, Na and Mg elements as well as by Sn, S, Fe, Cr, and C in microamounts. The atomic Ca to P ratio for bone tissue is 1.55. It is revealed that pores of the upper part of the femoral head have a more regular shape and in the lower part they are more elongated along the cut and occupy a larger volume. The lower part of the femoral head has a higher porosity (39 and 33%) than the upper part (34 and 30%). The total porosity of all samples does not exceed 37%.

Язык оригиналаАнглийский
Название основной публикацииNew Operational Technologies, NEWOT 2015: Proceedings of the 5th International Scientific Conference "New Operational Technologies"
Подзаголовок основной публикацииProceedings of the 5th International Scientific Conference "New Operational Technologies"
ИздательAmerican Institute of Physics Inc.
Том1688
ISBN (электронное издание)9780735413351
DOI
СостояниеОпубликовано - 17 ноя 2015
Событие5th International Scientific Conference on New Operational Technologies, NEWOT 2015 - Tomsk, Российская Федерация
Продолжительность: 29 сен 201530 сен 2015

Конференция

Конференция5th International Scientific Conference on New Operational Technologies, NEWOT 2015
СтранаРоссийская Федерация
ГородTomsk
Период29.9.1530.9.15

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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  • Цитировать

    Kirilova, I. A., Sharkeev, Y. P., Podorozhnaya, V. T., Popova, K. S., & Uvarkin, P. V. (2015). Structural and functional studies of bioobjects prepared from femoral heads. В New Operational Technologies, NEWOT 2015: Proceedings of the 5th International Scientific Conference "New Operational Technologies": Proceedings of the 5th International Scientific Conference "New Operational Technologies" (Том 1688). [030005] American Institute of Physics Inc.. https://doi.org/10.1063/1.4936000