Development and validation of an acoustic emission device to measure wear in total hip replacements in-vitro and in-vivo

Preliminary results from the in-vitro monitoring data show audible squeaking AEs have similar characteristics to in-vivo audible squeaking AEs and both have primary frequencies in the 1-4 kHz range. This study has indicated that the AE device shows promise as a potential diagnostic tool for assessing the condition of THR implants. In addition, the in-vitro technique was shown to be useful at providing further insight into the mechanisms of wear and acoustic emissions of THR implants. The study also provides important initial results for the assessment of the AE device as a diagnostic tool through the unique contribution of the testing and analysis of the same implant components in both in-vivo and in-vitro environments.