Removal of bone cement from the femoral canal using an acoustic emission-controlled milling device.
The removal of bone cement from the femoral canal in the case of hip prosthesis loosening takes a considerable amount of time and carries the additional risk of complications, thus risking bone damage and perhaps even endangering the successful reimplantation of a new prosthesis. We have demonstrated experimentally that the milling of bone and bone cement produces acoustic emission waves of different intensity. These waves can be measured by a commercial acoustic emission transducer. This method enables us to control a milling device during the removal of bone cement from deep in the femoral canal, avoiding the serious damage to the bone and thus enabling a new prosthesis to be reimplanted.
Schmidt
J
J
Klinik und Poliklinik für Orthopädie, Universität zu Köln, Germany.
Nordmann
K
K
D000162:Acoustics; D000818:Animals; D001843:Bone Cements; D005269:Femur; D006622:Hip Prosthesis; D006801:Humans; D011475:Prosthesis Failure; D012086:Reoperation / Q000379:methods; D013552:Swine
D001843:Bone Cements