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Authors: Cathérine Ruther ; Hartmut Ewald ; Wolfram Mittelmeier ; Daniel Kluess ; Andreas Fritsche and Rainer Bader

Affiliation: University of Rostock, Germany

ISBN: 978-989-8425-37-9

Keyword(s): Total hip replacement, Implant loosening, Sensor, Diagnosis tool.

Related Ontology Subjects/Areas/Topics: Biomechanical Devices ; Biomedical Engineering ; Biomedical Instruments and Devices ; Biomedical Sensors ; Biotelemetry

Abstract: Currently applied diagnostic methods for loosening of total hip replacements often result in imprecise identification of implant fixation and in the worst case unnecessary revision surgery. Developed sensors integrated in implants require adequate energy supply, which in most cases is achieved by inductive coupling and complex data telemetry. In order to avoid a telemetric apparatus, we developed a passive concept of a novel in vivo method to improve diagnostic investigations of total hip replacement loosening. A mechano-acoustical sensor, attached on small membranes inside the femoral hip stem, is proposed and enables osseous anchorage detection. The sensor is excited and detected by extracorporeal coils. First functional models show significant differences between different material layers located at the membrane. The novel in vivo sensor system has a promising potential to detect implant loosening.

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Paper citation in several formats:
Ruther, C.; Ewald, H.; Mittelmeier, W.; Kluess, D.; Fritsche, A. and Bader, R. (2011). A NEW METHOD FOR DETECTION OF TOTAL HIP REPLACEMENT LOOSENING - Development and First Results of a Novel Mechano-acoustical Sensor.In Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011) ISBN 978-989-8425-37-9, pages 70-73. DOI: 10.5220/0003165900700073

@conference{biodevices11,
author={Cathérine Ruther. and Hartmut Ewald. and Wolfram Mittelmeier. and Daniel Kluess. and Andreas Fritsche. and Rainer Bader.},
title={A NEW METHOD FOR DETECTION OF TOTAL HIP REPLACEMENT LOOSENING - Development and First Results of a Novel Mechano-acoustical Sensor},
booktitle={Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011)},
year={2011},
pages={70-73},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0003165900700073},
isbn={978-989-8425-37-9},
}

TY - CONF

JO - Proceedings of the International Conference on Biomedical Electronics and Devices - Volume 1: BIODEVICES, (BIOSTEC 2011)
TI - A NEW METHOD FOR DETECTION OF TOTAL HIP REPLACEMENT LOOSENING - Development and First Results of a Novel Mechano-acoustical Sensor
SN - 978-989-8425-37-9
AU - Ruther, C.
AU - Ewald, H.
AU - Mittelmeier, W.
AU - Kluess, D.
AU - Fritsche, A.
AU - Bader, R.
PY - 2011
SP - 70
EP - 73
DO - 10.5220/0003165900700073

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