INTECIN   20395
INSTITUTO DE TECNOLOGIAS Y CIENCIAS DE LA INGENIERIA "HILARIO FERNANDEZ LONG"
Unidad Ejecutora - UE
congresos y reuniones científicas
Título:
Efecto de atenuación de sonidos audibles del cemento en artroplastía de cadera cerámica-cerámica. Estudio in-vitro
Autor/es:
J. F. BURGO; A. OZOLS; C. FERNANDEZ; D. MENGELLE; J. A.ALIAGA ; E. ÁLVAREZ SALINAS; C.M. AUTORINO
Lugar:
Ciudad Autónoma de Buenos Aires
Reunión:
Congreso; 49no Congreso Argentino de Ortopedia y Traumatología; 2012
Institución organizadora:
Sociedad Argentina de Ortopedia Y traumatología
Resumen:
Squeaking of
ceramic on ceramic bearing surfaces of cementless hip implants affects a part
of implanted patients. There are several factors in the production the audible
sound associate to sliding and rolling of ceramic surfaces at certain
frequencies and the sound conduction trough metal stem. However, there is not a
practical solution of this problem, which frequently leads to revision surgery.
At this respect, a possible solution is proposed, based on the clinical
experience with cemented ceramic on ceramic hip implants, where it is not
registered any squeaking. The risked hypothesis is the sound damping effect of
cement mantle. The initial demonstration of this is performed by means of in
vitro tests performed in a simple setup, where the stem sound conduction is
compared between non-cemented and cemented stems. The results show the sound
amplitude reduction and certain frequencies absorption. This kind of elemental
assessment could be fairly adopted in hospital orthopaedic departments, in
order to qualify the specific hip implants, avoiding future revision surgeries.