A new method for measurement of bone deformation by echo tracking

We also improved a multi-ET system capable of simultaneously tracking multiple points to detect deformation of the bone surface. Measurement by this echo tracking system was also compared with strain gauge readings during a three point bending test with both ends of the tibia supported. The linearity of both methods was very high (r = 0.998). Our ET method might have considerable potential for noninvasive measurement of bone viscoelasticity and plasticity.