Paper Info
Title
A New Method for Detection of Total Hip Replacement Loosening - Development and First Results of a Novel Mechano-acoustical Sensor.
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.
Year
Venue
Keywords
2011
BIODEVICES 2011
Total hip replacement,Implant loosening,Sensor,Diagnosis tool
Field
DocType
Citations 
Mechanical engineering,Electronic engineering,Engineering
Conference
0
PageRank 
References 
Authors
0.34
0
6
Name
Order
Citations
PageRank
Cathérine Ruther131.19
Daniel Kluess2113.47
Andreas Fritsche300.34
Wolfram Mittelmeier492.77
Rainer Bader5104.49
Hartmut Ewald646.67