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In vitro evaluation of bonding of the cement‐metal interface of a total hip femoral component using ultrasound
Author(s) -
Davies Jeff P.,
Tse MK.,
Harris W. H.
Publication year - 1995
Publication title -
journal of orthopaedic research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.041
H-Index - 155
eISSN - 1554-527X
pISSN - 0736-0266
DOI - 10.1002/jor.1100130306
Subject(s) - materials science , cement , ultrasonic sensor , composite material , slab , total hip replacement , structural engineering , acoustics , medicine , physics , surgery , engineering
Debonding of the cement‐metal interface of a cemented femoral component is one mechanism associated with loosening of total hip replacement. An ultrasonic pulse‐echo technique was developed to determine, nondestructively, the integrity of the cement‐metal interface in vitro . The characteristics of the ultrasonic reflections of bonded and debonded interfaces were obtained by using a physical model that consisted of a flat slab of cement and a flat cobalt alloy plate with known conditions of bonded and debonded interfaces. The same model was used to establish that the ultrasonic technique could distinguish between two surfaces that were in direct apposition but not bonded and those that were actually bonded. This technique then was shown to be useful in nondestructively detecting bonded and debonded cement‐metal interfaces of femoral prostheses cemented into fiberglass femurs and femurs from human cadavera.