1. The differences between the ultrasonic parameters c and α determined for the right and left tibial bones as well as between values obtained directly on the bone and through the skin are statistically insignificant (p>0.1).
2. Experimental fracture of the tibia leads to a significant decrease in the ultrasound speed (p<0.001) and increase in the ultrasound damping coefficient (p<0.001).
3. Operative intervention, as a whole, and any of the surgical manipulations, in particular, significantly alter the initial acoustic parameters of the tibia with fracture or after osteotomy relative to fracture or osteotomy without osteosynthesis. These groups of patients should have different criteria for the degree of fracture repair.
4. Weakening of the stability of the fixation of a fracture by screwing in or loosening screws attaching a splint plate to the bone cause an increase in the damping coefficient. This sign is rather sensitive for use in clinical practice to diagnose weakening of the rigidity of fixation.
5. The ultrasound parameters c and α depend on the magnitude of the cross-sectional defect of the diaphysis and in conjunction may be used for diagnosis of the degree of adhesion of a fracture or operation site after corrective osteotomy.
6. The values for c and α found for undamaged bone may be used to evaluate their values for a diaphysis used for preparing bone samples.
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Vilks, Y.K., Pfafrod, G.O., Yanson, K.A. et al. An experimental study of the effect of fracture and operative intervention on acoustical properties of human tibial bone. Polymer Mechanics 14, 75–82 (1978). https://doi.org/10.1007/BF00859564
- Clinical Practice
- Experimental Study
- Operative Intervention
- Bone Sample
- Acoustical Property