Relationship between computed tomography measurement of parasagittal fatigue crack dimensions and detection of crack micromotion during mechanical loading.

Note: A logistic regression model was used to determine whether there was a significant relationship between fatigue crack dimensions determined by measurement from computed tomography images and crack micromotion under clinically relevant joint loads in an ex-vivo model (micromotion corrected to 15% above baseline) (n = 38 condyles from 21 bones from 18 horses). Within the multivariate models of CT measurement parameter and horse identity, parasagittal crack area was the only CT measurement that yielded a significant result.