title: A new malleostapedotomy prosthesis. Experimental analysis by laser doppler vibrometer in fresh cadaver temporal bones.
abstract: OBJECTIVE
  One of the problems with total ossicular replacement prostheses is their stability. Prosthesis dislocations and extrusions are common in middle ear surgery. This is due to variations in endo-tympanic pressure as well as design defects. The design of this new prosthesis reduces this problem by being joined directly to the malleus handle. The aim of this study is to confirm adequate acoustic-mechanical behaviour in fresh cadaver middle ear of a new total ossicular replacement prosthesis, designed using the finite elements method.
  
  
  METHODS
  Using the doppler vibrometer laser, we analysed the acoustic-mechanical behaviour of a new total ossicular replacement prosthesis in the human middle ear using 10 temporal bones from fresh cadavers.
  
  
  RESULTS
  The transfer function of the ears in which we implanted the new prosthesis was superimposed over the non-manipulated ear. This suggests optimum acoustic-mechanical behaviour.
  
  
  CONCLUSIONS
  The titanium prosthesis analysed in this study demonstrated optimum acoustic-mechanical behaviour. Together with its ease of implantation and post-surgical stability, these factors make it a prosthesis to be kept in mind in ossicular reconstruction.
authors.affiliation: Cátedra de Otorrinolaringología, Universidad de Valladolid, Valladolid, España; Servicio de Otorrinolaringología, Hospital Universitario Río Hortega, Valladolid, España; Instituto de Neurociencias de Castilla y León (INCyL), Valladolid, España. Electronic address: lvallejovaldez@movistar.es.
authors.forename: Luis A
authors.initials: LA
authors.lastname: Vallejo
authors.affiliation: Centro para la Investigación y el Desarrollo en Automoción (CIDAUT) , Valladolid, España.
authors.forename: María T
authors.initials: MT
authors.lastname: Manzano
authors.affiliation: Centro para la Investigación y el Desarrollo en Automoción (CIDAUT) , Valladolid, España; Centro para el Estudio y Control del Ruido (CECOR), Valladolid, España.
authors.forename: Antonio
authors.initials: A
authors.lastname: Hidalgo
authors.affiliation: Centro para la Investigación y el Desarrollo en Automoción (CIDAUT) , Valladolid, España.
authors.forename: Alberto
authors.initials: A
authors.lastname: Hernández
authors.affiliation: Centro para la Investigación y el Desarrollo en Automoción (CIDAUT) , Valladolid, España.
authors.forename: Juan
authors.initials: J
authors.lastname: Sabas
authors.affiliation: Servicio de Otorrinolaringología, Hospital Universitario Río Hortega, Valladolid, España.
authors.forename: Hugo
authors.initials: H
authors.lastname: Lara
authors.affiliation: Cátedra de Otorrinolaringología, Universidad de Valladolid, Valladolid, España; Servicio de Otorrinolaringología, Hospital Universitario Río Hortega, Valladolid, España.
authors.forename: Elisa
authors.initials: E
authors.lastname: Gil-Carcedo
authors.affiliation: Cátedra de Otorrinolaringología, Universidad de Valladolid, Valladolid, España; Servicio de Otorrinolaringología, Hospital Universitario Río Hortega, Valladolid, España.
authors.forename: David
authors.initials: D
authors.lastname: Herrero
mesh_terms: D002102:Cadaver; D004301:Doppler Effect; D004424:Ear Canal; D017097:Electric Impedance; D006801:Humans; D007368:Interferometry / Q000295:instrumentation / Q000379:methods*; D007834:Lasers; D008307:Malleus / Q000601:surgery*; D008365:Manometry / Q000295:instrumentation / Q000379:methods*; D009998:Ossicular Prosthesis; D019933:Ossicular Replacement / Q000295:instrumentation / Q000379:methods*; D011312:Pressure; D011474:Prosthesis Design; D013201:Stapes Surgery / Q000379:methods*; D013701:Temporal Bone / Q000601:surgery*; D014432:Tympanic Membrane / Q000503:physiopathology; D014732:Vibration
keywords: Laser doppler vibrometer; Maleovestibulopexia; Malleostapedotomy; Mecánica del oído medio; Middle ear mechanics; Osiculoplastia; Ossiculoplasty; Prótesis de sustitución osicular total; Total ossicular replacement prosthesis; Vibrometría láser doppler