Method and device for detection of endoprosthetic loosening

The invention describes a system, which is used to monitor the ingrown and loosening status of an implant.
To achieve this, body sound and ultrasound sensors are placed on the surface of the prosthetic. These sensors are able to detect micro friction processes, caused by a relative movement between the artificial hip and the surrounding soft and hard tissue. In addition, the system is capable of using ultrasound to monitor the ingrown and loosening status.
By doing so, the invention delivers a measurement system for a non invasive and radiation free examination of the loosening and the ingrown status of hip replacement implants. This system would be able to reduce the number of unnecessary revision surgeries and thus could be able to reduce the costs caused by such opera-tions.

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