A new sensing paradigm for the vibroacoustic detection of pedicle screw loosening
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arXiv
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| Autores principales: | , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2022
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| _version_ | 1866917916952231936 |
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| author | Seibold, Matthias Sigrist, Bastian Götschi, Tobias Widmer, Jonas Hodel, Sandro Farshad, Mazda Navab, Nassir Fürnstahl, Philipp Laux, Christoph J. |
| author_facet | Seibold, Matthias Sigrist, Bastian Götschi, Tobias Widmer, Jonas Hodel, Sandro Farshad, Mazda Navab, Nassir Fürnstahl, Philipp Laux, Christoph J. |
| contents | There is an unmet clinical need for developing novel methods to complement and replace the current radiation-emitting imaging-based methods for the detection of loose pedicle screws as a complication after spinal fusion surgery which fail to identify a substantial amount of loose implants. In this work, we propose a new methodology and paradigm for the radiation-free, non-destructive, and easy-to-integrate detection of pedicle screw loosening based on vibroacoustic sensing. Furthermore, we propose a novel simulation technique for pedicle screw loosening, which is biomechanically validated. For the detection of a loose implant, we excite the vertebra of interest with a sine sweep vibration at the spinous process and attach a custom highly-sensitive piezo contact microphone to the screw head to capture the propagated vibration characteristics which are analyzed using a detection pipeline based on spectrogram features and a SE-ResNet-18. To validate the proposed approach, we conducted experiments using four human cadaveric lumbar spine specimens and evaluate our algorithm in a cross validation experiment. Our method reaches a sensitivity of 91.50 +- 6.58% and a specificity of 91.10 +- 2.27%. The proposed system shows great potentials for the development of alternative assessment methods for implant loosening based on vibroacoustic sensing. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2210_16170 |
| institution | arXiv |
| publishDate | 2022 |
| record_format | arxiv |
| spellingShingle | A new sensing paradigm for the vibroacoustic detection of pedicle screw loosening Seibold, Matthias Sigrist, Bastian Götschi, Tobias Widmer, Jonas Hodel, Sandro Farshad, Mazda Navab, Nassir Fürnstahl, Philipp Laux, Christoph J. Medical Physics There is an unmet clinical need for developing novel methods to complement and replace the current radiation-emitting imaging-based methods for the detection of loose pedicle screws as a complication after spinal fusion surgery which fail to identify a substantial amount of loose implants. In this work, we propose a new methodology and paradigm for the radiation-free, non-destructive, and easy-to-integrate detection of pedicle screw loosening based on vibroacoustic sensing. Furthermore, we propose a novel simulation technique for pedicle screw loosening, which is biomechanically validated. For the detection of a loose implant, we excite the vertebra of interest with a sine sweep vibration at the spinous process and attach a custom highly-sensitive piezo contact microphone to the screw head to capture the propagated vibration characteristics which are analyzed using a detection pipeline based on spectrogram features and a SE-ResNet-18. To validate the proposed approach, we conducted experiments using four human cadaveric lumbar spine specimens and evaluate our algorithm in a cross validation experiment. Our method reaches a sensitivity of 91.50 +- 6.58% and a specificity of 91.10 +- 2.27%. The proposed system shows great potentials for the development of alternative assessment methods for implant loosening based on vibroacoustic sensing. |
| title | A new sensing paradigm for the vibroacoustic detection of pedicle screw loosening |
| topic | Medical Physics |
| url | https://arxiv.org/abs/2210.16170 |