Biomaterial Database

Hearing and anatomical results with homograft tympanoplasty. 1977

R E Wehrs

Homograft tympanic membranes and ossicles have been found to be a valuable asset in tympanoplasty surgery. The homograft tympanic membrane has been used in conjunction with a canal skin graft with a graft take rate of 94 per cent. Anatomical results have been gratifying in that most patients are totally rehabilitated and may swim or shower without restrictions. The homograft incus has been sculptured into prostheses to reconstruct the sound conduction mechanism, both at the initial procedure and in revision cases to improve the hearing.

UI	MeSH Term	Description	Entries
D007188	Incus	One of three ossicles of the middle ear. It conducts sound vibrations from the MALLEUS to the STAPES.
D004427	Ear Diseases	Pathological processes of the ear, the hearing, and the equilibrium system of the body.	Otologic Diseases,Otological Diseases,Disease, Ear,Disease, Otologic,Disease, Otological,Ear Disease,Otologic Disease,Otological Disease
D004429	Ear Ossicles	A mobile chain of three small bones (INCUS; MALLEUS; STAPES) in the TYMPANIC CAVITY between the TYMPANIC MEMBRANE and the oval window on the wall of INNER EAR. Sound waves are converted to vibration by the tympanic membrane then transmitted via these ear ossicles to the inner ear.	Auditory Ossicles,Auditory Ossicle,Ear Ossicle,Ossicle, Auditory,Ossicle, Ear,Ossicles, Auditory,Ossicles, Ear
D006309	Hearing	The ability or act of sensing and transducing ACOUSTIC STIMULATION to the CENTRAL NERVOUS SYSTEM. It is also called audition.	Audition
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D012422	Rupture, Spontaneous	Tear or break of an organ, vessel or other soft part of the body, occurring in the absence of external force.	Ruptures, Spontaneous,Spontaneous Rupture,Spontaneous Ruptures
D014184	Transplantation, Homologous	Transplantation between individuals of the same species. Usually refers to genetically disparate individuals in contradistinction to isogeneic transplantation for genetically identical individuals.	Transplantation, Allogeneic,Allogeneic Grafting,Allogeneic Transplantation,Allografting,Homografting,Homologous Transplantation,Grafting, Allogeneic
D014432	Tympanic Membrane	An oval semitransparent membrane separating the external EAR CANAL from the tympanic cavity (EAR, MIDDLE). It contains three layers: the skin of the external ear canal; the core of radially and circularly arranged collagen fibers; and the MUCOSA of the middle ear.	Eardrum,Eardrums,Membrane, Tympanic,Membranes, Tympanic,Tympanic Membranes
D014433	Tympanoplasty	Surgical reconstruction of the hearing mechanism of the middle ear, with restoration of the drum membrane to protect the round window from sound pressure, and establishment of ossicular continuity between the tympanic membrane and the oval window. (Dorland, 28th ed.)	Tympanoplasties
D019736	Prostheses and Implants	Artificial substitutes for body parts, and materials inserted into tissue for functional, cosmetic, or therapeutic purposes. Prostheses can be functional, as in the case of artificial arms and legs, or cosmetic, as in the case of an artificial eye. Implants, all surgically inserted or grafted into the body, tend to be used therapeutically. IMPLANTS, EXPERIMENTAL is available for those used experimentally.	Implants, Artificial,Prostheses and Implant,Prosthesis,Prosthetic Implant,Endoprostheses,Endoprosthesis,Prostheses,Prosthetic Implants,Artificial Implant,Artificial Implants,Implant and Prostheses,Implant, Artificial,Implant, Prosthetic,Implants and Prostheses,Implants, Prosthetic