Biomechanical examinations of cancellous bone concerning the influence of duration and temperature of cryopreservation.

The influence of cryopreservation of cancellous bone at different temperatures and different storage periods was investigated for mechanical changes. Standardized cancellous cylinders (50 x 25 mm) were stored at -20 degrees C or -80 degrees C for 6 or 12 months, respectively, or for 2 years and then subjected to a screw pull-out test. No significant differences were found among the various storage temperatures and periods investigated.