The effect of hole diameter on the torsional mechanical properties of the equine third metacarpal bone

Krista L. Seltzer, Susan M Stover, Kenneth T. Taylor, Neil H. Willits

Research output: Contribution to journalArticle

18 Scopus citations

Abstract

The torsional monotonie structural material properties of equine metacarpi with or without, either a 5/16 inch or 3/8 inch diameter bicortical lateromedial middiaphyseal hole were assessed to determine the effect of a hole on metacarpal strength. Torsional stiffness was not significantly effected by the presence of a bicortical hole, whereas yield and failure angles, torques and energies of metacarpi with a hole were 51% to 97% of those of intact bones. Significant differences were not apparent for yield and failure mechanical properties between metacarpi with a 5/16 inch diameter hole and metacarpi with a 3/8 inch diameter hole; however, postyield mechanical properties were lower for metacarpi with a 3/8 inch hole. Whereas some metacarpi with a 5/16 inch hole were capable of plastic deformation before failure, metacarpi with a 3/8 inch diameter hole appeared to have sufficient stress concentration to propagate complete fracture on structural yield.

Original languageEnglish (US)
Pages (from-to)371-375
Number of pages5
JournalVeterinary Surgery
Volume25
Issue number5
StatePublished - Sep 1996

ASJC Scopus subject areas

  • veterinary(all)

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