METHODS of reconstructing a functioning ossicular chain, and, in particular, interposition techniques, were predominant in the 1965 literature on tympanoplasty. The reviewer again notes the scarcity of reports on the exact results obtained with many of the new techniques reported.
Research in Tympanoplasty
Eustachian tubal function was studied permeatally by Miller1 in patients with drum perforations. Normal tubes open with a small amount of positive pressure. With intratympanic vacuum, swallowing produced a series of openings (lasting 0.24 second on the average) until zero pressure was attained. With tubal malfunction, zero pressure was never reached. This appears to be a practical method of determining tubal patency.The vulnerability of the round window membrane to injury during transmeatal surgery was studied by Zimmerman2 in 50 human temporal bones. The round window membrane is tough and careful surgery with blunt instruments is unlikely to cause injury. Manipulations within the niche with
PROCTOR B, PROCTOR C. Tympanoplasty. Arch Otolaryngol. 1966;84(6):698–702. doi:10.1001/archotol.1966.00760030700015
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