Development and validation of an acoustic emission device to measure wear in total hip replacements in-vitro and in-vivo

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• 作者：Anthony J. FitzPatrick^a ; ^{anthony.fitzpatrick@pg.canterbury.ac.nz} ; Geoffrey W. Rodgers^a ; ^{geoff.rodgers@canterbury.ac.nz} ; Gary J. Hooper^b ; ^{gary.hooper@otago.ac.nz} ; Tim B.F. Woodfield^b ; ^{tim.woodfield@otago.ac.nz}
• 关键词：Total joint replacement ; Acoustic emission ; Hip implant ; Diagnostic technique ; Squeaking ; Implant loosening
• 刊名：Biomedical Signal Processing and Control
• 出版年：2017
• 出版时间：March 2017
• 年：2017
• 卷：33
• 期：Complete
• 页码：281-288
• 全文大小：2070 K
• 卷排序：33

文摘

An acoustic emissions monitoring system for hip replacement implants is presented. In-vivo implant components recovered during revision surgery then tested in-vitro. In-vivo and in-vitro acoustic emissions of hip replacement implants are compared. Unique frequency signatures are identified for different implant failure modes. The same overall implant frequency characteristics are seen in-vivo and in-vitro.