Popis: |
The use of impact resonant frequency analysis to noninvasively quantify fracture healing was investigated in closed human tibia fractures and canine radius fracture. Comparison with the results obtained from a finite-element model show that as healing time increases, normalized resonant frequency also increases for normal healing fractures. Several parameters were varied in the finite-element model to establish the effects on the resonant frequency. Changes in the cross-sectional properties and modulus of elasticity of the callus has the largest affect on the resonant frequency. > |