Print Email Facebook Twitter Using Acoustic Vibrations as a Method for Implant Insertion Assessment in Total Hip Arthroplasty Title Using Acoustic Vibrations as a Method for Implant Insertion Assessment in Total Hip Arthroplasty Author Wei, J.C. (TU Delft Medical Instruments & Bio-Inspired Technology) Crezee, W.H.A. (Student TU Delft) Jongeneel, H. (Student TU Delft) de Haas, T.S.A. (Student TU Delft) Kool, W.L.A. (Student TU Delft) Blaauw, Bryan J. (Elkerliek Hospital) Dankelman, J. (TU Delft Medical Instruments & Bio-Inspired Technology) Horeman, T. (TU Delft Medical Instruments & Bio-Inspired Technology) Date 2022 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 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). A total of 2583 audio recordings were analyzed 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 cadaveric 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 Subject medical devicesurgeryhip arthroplastyacousticsvibration emissions To reference this document use: http://resolver.tudelft.nl/uuid:7db6c828-6cec-46b5-906f-67fe08d93ca1 DOI https://doi.org/10.3390/s22041609 ISSN 1424-8220 Source Sensors, 22 (4) Part of collection Institutional Repository Document type journal article Rights © 2022 J.C. Wei, W.H.A. Crezee, H. Jongeneel, T.S.A. de Haas, W.L.A. Kool, Bryan J. Blaauw, J. Dankelman, T. Horeman Files PDF sensors_22_01609.pdf 1.75 MB Close viewer /islandora/object/uuid:7db6c828-6cec-46b5-906f-67fe08d93ca1/datastream/OBJ/view