Strength of fresh bone and bone preserved by freezing

The bending strength of 85 plates obtained from the tibias of human cadavers has been determined and compared with the strength of plates of bone tissue from the same bone stored at temperatures from ?25 to ?30°C for 3 months (44 cases), 6.5 months (32 cases), and 9.5 months (32 cases). It is found that the strength of the deep-frozen bone decreases with time.