Wei, J.C.J.; Crezee, W.H.A.; Jongeneel, H.; De Haas, T.S.A.; Kool, W.L.A.; Blaauw, B.J.; Dankelman, J.; Horeman, T. Using Acoustic Vibrations as a Method for Implant Insertion Assessment in Total Hip Arthroplasty. Sensors2022, 22, 1609.
Wei, J.C.J.; Crezee, W.H.A.; Jongeneel, H.; De Haas, T.S.A.; Kool, W.L.A.; Blaauw, B.J.; Dankelman, J.; Horeman, T. Using Acoustic Vibrations as a Method for Implant Insertion Assessment in Total Hip Arthroplasty. Sensors 2022, 22, 1609.
Wei, J.C.J.; Crezee, W.H.A.; Jongeneel, H.; De Haas, T.S.A.; Kool, W.L.A.; Blaauw, B.J.; Dankelman, J.; Horeman, T. Using Acoustic Vibrations as a Method for Implant Insertion Assessment in Total Hip Arthroplasty. Sensors2022, 22, 1609.
Wei, J.C.J.; Crezee, W.H.A.; Jongeneel, H.; De Haas, T.S.A.; Kool, W.L.A.; Blaauw, B.J.; Dankelman, J.; Horeman, T. Using Acoustic Vibrations as a Method for Implant Insertion Assessment in Total Hip Arthroplasty. Sensors 2022, 22, 1609.
Abstract
The success of total hip arthroplasty depends on the experience of the surgeon, and one of the ways the surgeon currently determines the final implant insertion depth is to listen to the change in audible pitch of the hammering sound. We investigated the use of acoustic vibration emissions as a novel method for insertion quality assessment. A non-invasive contact microphone-based measurement system for insertion depth estimation, fixation and fracture detection was developed using a simplified in vitro bone/implant (n=5). 2583 audio recordings were analysed in vitro to obtain energy spectral density functions. Out of the four main resonant peaks under in vitro conditions, broach insertion depth statistically correlates to increasing 3rd and 4th peak frequencies. Degree of fixation was also observed as higher goodness of fit (0.26-0.78 vs. 0.12-0.51 between two broach sizes, the latter undersized). Finally, however, the moment of fracture could not be predicted. A cadaver in situ pilot study suggests comparable resonant frequencies in the same order of magnitudes with the bone model. Further understanding of the signal patterns are needed for an early warning system diagnostic system for imminent fractures, bone damage, improving accuracy and quality of future procedures.
Keywords
Medical device; surgery; hip arthroplasty; acoustics; vibration emissions
Subject
Medicine and Pharmacology, Surgery
Copyright:
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