Type

Other / n/a

Authors

David Taylor
T Clive Lee
Fergal O'Brien
Gerardo Presbitero

Subjects

Veterinary

Topics
animals cattle stress mechanical fractures stress mechanical haversian system anatomy sheep models anatomic fractures stress anatomic dogs

Distribution of microcrack lengths in bone in vivo and in vitro. (2012)

Abstract It is well known that bone contains small cracks; in vivo these microcracks are constantly growing and being repaired. Too rapid crack growth leads to stress fractures or fragility fractures. In vitro, changes occur in this population of microcracks when subjected to cyclic loading up to and including failure. Normally, the only parameters reported from such investigations are the number density of cracks and their average length. In the present work we examined the microcrack population in more detail. We analysed ten different sets of experimental data including in vivo and in vitro microcracks, plus two theoretical simulations. We showed for the first time that the distribution of crack lengths can be described using the two-parameter Weibull equation. The values of the two constants in the equation varied depending on bone type/species and showed consistent trends during in vitro testing. This is the most detailed study to be conducted on microcrack populations in bone; the results will be useful in future studies including the development of theoretical models and computer simulations of bone damage and failure.
Collections Ireland -> Royal College of Surgeons in Ireland -> Anatomy Articles
Ireland -> Royal College of Surgeons in Ireland -> Department of Anatomy

Full list of authors on original publication

David Taylor, T Clive Lee, Fergal O'Brien, Gerardo Presbitero

Experts in our system

1
David Taylor
Trinity College Dublin
Total Publications: 75
 
2
T Clive Lee
Royal College of Surgeons in Ireland
Total Publications: 76
 
3
Fergal J O'Brien
Royal College of Surgeons in Ireland
Total Publications: 265