Results of homografts in middle ear surgery.
Anatomical and hearing results following the use of the homograft tympanic membrane and ossicles either in combination or separately are reported for the period 1968 through 1975. The study is divided into two parts, the first covering the primary years 1968 through 1971, and the latter covering the last four years, 1972 through 1975. The original technique was to cover completely the homograft tympanic membrane with a canal skin graft. During the year 1969 new and different techniques were attempted. Unfortunately this resulted in a marked increase of graft failures; therefore, there was a prompt return to the original technique, which has been used without change throughout the study. The graft take rate for the first four years which included 1969 was 92%. There was a slight increase to 96% during the second part of the study. The hearing results show a greater discrepancy for the two periods with 89% of the patients receiving a satisfactory hearing result during the last four years, compared to 77% for the earlier period.
D004429:Ear Ossicles / Q000637:transplantation*; D005069:Evaluation Studies as Topic; D006801:Humans; D008722:Methods; D014184:Transplantation, Homologous; D014432:Tympanic Membrane / Q000637:transplantation*; D014433:Tympanoplasty