A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A new sensing paradigm for the vibroacoustic detection of pedicle screw loosening
https://orcid.org/0000-0002-9960-3244
Abstract The current clinical gold standard to assess the condition and detect loosening of pedicle screw implants is radiation-emitting medical imaging. However, solely based on medical imaging, clinicians are not able to reliably identify loose implants in a substantial amount of cases. To complement medical imaging for pedicle screw loosening detection, we propose a new methodology and paradigm for the radiation-free, non-destructive, and easy-to-integrate loosening detection based on vibroacoustic sensing. For the detection of a loose implant, we excite the vertebra of interest with a sine sweep vibration at the spinous process and use a custom highly sensitive piezo vibration sensor attached directly at 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 propose a novel, biomechanically validated simulation technique for pedicle screw loosening, conduct experiments using four human cadaveric lumbar spine specimens, and evaluate our algorithm in a cross-validation experiment. The proposed method reaches a sensitivity of $$91.50 \pm 6.58 \%$$ 91.50 ± 6.58 % and a specificity of $$91.10 \pm 2.27 \%$$ 91.10 ± 2.27 % for pedicle screw loosening detection. Graphical abstract
A new sensing paradigm for the vibroacoustic detection of pedicle screw loosening
https://orcid.org/0000-0002-9960-3244
Abstract The current clinical gold standard to assess the condition and detect loosening of pedicle screw implants is radiation-emitting medical imaging. However, solely based on medical imaging, clinicians are not able to reliably identify loose implants in a substantial amount of cases. To complement medical imaging for pedicle screw loosening detection, we propose a new methodology and paradigm for the radiation-free, non-destructive, and easy-to-integrate loosening detection based on vibroacoustic sensing. For the detection of a loose implant, we excite the vertebra of interest with a sine sweep vibration at the spinous process and use a custom highly sensitive piezo vibration sensor attached directly at 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 propose a novel, biomechanically validated simulation technique for pedicle screw loosening, conduct experiments using four human cadaveric lumbar spine specimens, and evaluate our algorithm in a cross-validation experiment. The proposed method reaches a sensitivity of $$91.50 \pm 6.58 \%$$ 91.50 ± 6.58 % and a specificity of $$91.10 \pm 2.27 \%$$ 91.10 ± 2.27 % for pedicle screw loosening detection. Graphical abstract
A new sensing paradigm for the vibroacoustic detection of pedicle screw loosening
https://orcid.org/0000-0002-9960-3244
Abstract The current clinical gold standard to assess the condition and detect loosening of pedicle screw implants is radiation-emitting medical imaging. However, solely based on medical imaging, clinicians are not able to reliably identify loose implants in a substantial amount of cases. To complement medical imaging for pedicle screw loosening detection, we propose a new methodology and paradigm for the radiation-free, non-destructive, and easy-to-integrate loosening detection based on vibroacoustic sensing. For the detection of a loose implant, we excite the vertebra of interest with a sine sweep vibration at the spinous process and use a custom highly sensitive piezo vibration sensor attached directly at 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 propose a novel, biomechanically validated simulation technique for pedicle screw loosening, conduct experiments using four human cadaveric lumbar spine specimens, and evaluate our algorithm in a cross-validation experiment. The proposed method reaches a sensitivity of $$91.50 \pm 6.58 \%$$ 91.50 ± 6.58 % and a specificity of $$91.10 \pm 2.27 \%$$ 91.10 ± 2.27 % for pedicle screw loosening detection. Graphical abstract
A new sensing paradigm for the vibroacoustic detection of pedicle screw loosening
Med Biol Eng Comput
Seibold, Matthias (author) / Sigrist, Bastian (author) / Götschi, Tobias (author) / Widmer, Jonas (author) / Hodel, Sandro (author) / Farshad, Mazda (author) / Navab, Nassir (author) / Fürnstahl, Philipp (author) / Laux, Christoph J. (author)
2024-11-19
Article (Journal)
Electronic Resource
English
Spinal Pedicle Screw Design Retains Grip Strength After Loosening and Relocking
| British Library Online Contents | 2015
Deformation of Dental Abutment Screw after Tightening and Loosening
| British Library Online Contents | 2007
Assessment of the tolerance angle for pedicle screw insertion
| Springer Verlag | 2024