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2013 | 69 | 02 |

Tytuł artykułu

Właściwości mechaniczne istoty zbitej kości pęcinowej koni

Warianty tytułu

EN
Mechanical properties of the cortical bone of the proximal phalanx in horses

Języki publikacji

PL

Abstrakty

EN
The modulus of elasticity for the cortical bone in horses presented in the literature ranges between 1.75 and 20 GPa. The aim of the study was to determine the mechanical properties of the cortical bone of the proximal phalanx in horses in the three-point-bending test. Material and methods: The cortical bone was obtained from 10 horses (40 bones), both male and female, aged between 2-15 years. Bones were collected within 24 hours post mortem, dissected free of soft tissues, and then wrapped in plastic bags to prevent drying, and stored at -20 degrees Celsius. For the investigation, rectangular pieces of cortical bone were taken from the dorsal part of the bone. To determine the mechanical properties of the cortical bone the three-point-bending test was performed using the universal testing machine (Zwick 1435). All specimens were loaded with speed 2 mm/min to failure. During the testing procedure the following parameters were determined: maximum force, strength for bending, deformation for maximum force, modulus of elasticity and destroying work. Results and discussion: During investigation, the cortical bone from the dorsal part of the bone was exclusively tested because of its clear development. Mean values estimated during the tests were as follows: the modulus of elasticity 3.41GPa, maximum force (Fmax) 605.32N, deformation for Fmax 1.59 mm, strength for bending 110.61 MPa, destroying work 0.32Nm. Most of the bones used during the investigations were collected from horses of unknown breed killed in slaughter houses. Bones were collected only from healthy horses older than 2-years-of-age. Due to the lack of information about the breed, use of the horse and its feeding, determining the influence of these factors on the results was not possible. The dispersion of the results were significant and ranged for the elastic modulus between 1.37-6.66 GPa. An explanation for this can be the factor of using bones from different horses from different conditions like age, feeding, training, etc. Conclusions: Results of the elastic modulus achieved in our test are lower than the ones in horses and humans for long bones, which ranged between 16 and 20 GPa.

Wydawca

-

Rocznik

Tom

69

Numer

02

Opis fizyczny

s.120-123,tab.,bibliogr.

Twórcy

autor
  • Katedra Chorób Dużych Zwierząt z Kliniką, Wydział Medycyny Weterynaryjnej, Szkoła Główna Gospodarstwa Wiejskiego, ul.Nowoursynowska 166, 02-787 Warszawa
autor
  • Katedra Ceramiki Specjalnej, Wydział Inżynierii Materiałowej i Ceramiki, Akademia Górniczo-Hutnicza, Al.Mickiewicza 30, 30-059 Kraków
autor
  • Katedra Chorób Dużych Zwierząt z Kliniką, Wydział Medycyny Weterynaryjnej, Szkoła Główna Gospodarstwa Wiejskiego, ul.Nowoursynowska 166, 02-787 Warszawa
autor
  • Katedra Nauk Morfologicznych, Wydział Medycyny Weterynaryjnej, Szkoła Główna Gospodarstwa Wiejskiego, ul.Nowoursynowska 166, 02-787 Warszawa

Bibliografia

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  • 3. Bigot G., Bouzidi A., Rumelhart C., Martin-Rosset W.: Evolution during growth of the mechanical properties of the cortical bone in equine cannonbones. Med. Eng. Phys. 1996, 18, 79-87.
  • 4. Buckingham S. H., Jeffcott L. B., Anderson G. A., McCartney R. N.: In vivo measurement of bone quality in the horse: estimates of precision for ultrasound velocity measurement and single photon absorptiometry. Med. Biol. Ing. Comp. 1992b, 30, 41-45.
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  • 6. Buckwalter J. A., Glimcher M. J., Cooper R. R., Recker R.: Bone biology. Part I Structure, blood supplay, cells, matrix, and mineralization. J. Bone Joint Surg. 1995 a, 77A, 1256-1275.
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  • 8. Currey J. D.: What Determines The Bending Strength Of Compact Bone? J. Exp. Biology 1999, 202, 2495-2503.
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  • 12. Hanson P. D., Markel M. D., Vanderby R.: Diaphyseal structural properties of equine long bones. Am. J. Vet. Res. 1995, 56, 223-240.
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  • 14. Jeffcott L. B., Buckingham S. H., McCarthy R. N., Cleeland J. C., Scotti E., McCartney R. N.: Non-invasive measurement of bone: a review of clinical and research application in the horse. Equine Vet. J. Suppl. 1988, 6, 71-79.
  • 15. Lawrence L. A., Ott E. A., Miller G. J., Poulos P. W., Piotrowski G., Asquith R. L.: The mechanical properties of equine third metacarpals as affected by age. J. Anim. Sci. 1994, 72, 2617-2623.
  • 16. Markel M. D.: Bone structure and the response of bone to stress, [w:] Equine Fracture Repair. Saunders W. B. Comp., Philadelphia 1996 a, 3-9.
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  • 20. Rho J. Y., Roy M. E., Tsui T. Y., Pharr G. M.: Elastic properties of microstructural components of human bone measured by nanoindentation. J. Biomed. Mater. Res. 1999a, 45, 48-54.
  • 21. Rho J. Y., Tsui T. Y., Pharr G. M.: Elastic properties of human cortical and trabecular lamellar bone measured by nanoindentation. Biomaterials 1997, 18, 1325-1330.
  • 22. Rho J. Y., Zioupos P., Currey J. D., Pharr G. M.: Variations in the individual thick lamellar properties within osteons by nanoindentation. Bone 1999b, 25, 295-300.
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  • 25. Turek B.: Badania biomechaniczne in vitro nad możliwością zastosowania śruby węglowej w leczeniu złamań kości pęcinowej u koni. Praca dokt., Wydz. Med. Wet. SGGW, Warszawa 2000.
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Typ dokumentu

Bibliografia

Identyfikatory

Identyfikator YADDA

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