Biomaterial Database

[Fenestration of semicircular canal for congenital microtia]. 1993

T Leng

Tong Ren Hospital, Beijing.

The purpose of this paper is to present a surgical method for microtia(small auricle, small external audiotory meatus and small tympanic membrane). 7 cases received fenestration of semicircular canal. During the operation it was found that the patients had congenital absence of oval windows and stapes, significant low position of horizontal facial canal covering the oval windows. It was impossible to perform labyrinthotomy in these patients. The only choice of operation is fenestration of semicircular canal. 7 ears underwent the operation as described. 6 weeks-21 months follow-up showed that all of the 7 ears achieved good hearing results. Range of hearing gain was 35-40 dB and bone-air gap was 25-30 dB.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D002648	Child	A person 6 to 12 years of age. An individual 2 to 5 years old is CHILD, PRESCHOOL.	Children
D004424	Ear Canal	The narrow passage way that conducts the sound collected by the EAR AURICLE to the TYMPANIC MEMBRANE.	Auditory Canal, External,External Acoustic Canal,External Acoustic Meatus,External Auditory Canal,External Ear Canal,Acoustic Canal, External,Acoustic Canals, External,Acoustic Meatus, External,Auditory Canals, External,Canal, Ear,Canal, External Ear,Canals, Ear,Canals, External Ear,Ear Canal, External,Ear Canals,Ear Canals, External,External Acoustic Canals,External Auditory Canals,External Ear Canals
D004431	Ear, External	The outer part of the hearing system of the body. It includes the shell-like EAR AURICLE which collects sound, and the EXTERNAL EAR CANAL, the TYMPANIC MEMBRANE, and the EXTERNAL EAR CARTILAGES.	External Ear,Outer Ear,Ear, Outer,Ears, External,Ears, Outer,External Ears,Outer Ears
D005260	Female		Females
D005276	Fenestration, Labyrinth	The surgical creation of a new opening in the labyrinth of the ear for the restoration of hearing in cases of OTOSCLEROSIS. (Dorland, 27th ed)	Fenestrations, Labyrinth,Labyrinth Fenestration,Labyrinth Fenestrations
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000293	Adolescent	A person 13 to 18 years of age.	Adolescence,Youth,Adolescents,Adolescents, Female,Adolescents, Male,Teenagers,Teens,Adolescent, Female,Adolescent, Male,Female Adolescent,Female Adolescents,Male Adolescent,Male Adolescents,Teen,Teenager,Youths
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D012665	Semicircular Canals	Three long canals (anterior, posterior, and lateral) of the bony labyrinth. They are set at right angles to each other and are situated posterosuperior to the vestibule of the bony labyrinth (VESTIBULAR LABYRINTH). The semicircular canals have five openings into the vestibule with one shared by the anterior and the posterior canals. Within the canals are the SEMICIRCULAR DUCTS.	Semi-Circular Canals,Canal, Semi-Circular,Canal, Semicircular,Semi Circular Canals,Semi-Circular Canal,Semicircular Canal