A retrospective study of the hearing results obtained after stapedotomy by the implantation of two Teflon pistons with a different diameter.

Abstract

This study reports the evaluation of hearing results after implantation of a Teflon piston of a different diameter in cases of otosclerosis requiring stapedotomy. By random selection, a Teflon piston with a shaft diameter of 0.3 mm was inserted in 34 cases and a piston with a shaft diameter of 0.4 mm in 26 cases. A retrospective analysis of the pre- and postsurgery audiological results of these two patient groups was carried out by microcomputer. A repeated statistical measures analysis of variance was used to test and estimate the air-conduction frequency-specific differences between the two prostheses with respect to changes in pre- and postoperative healing. The results of this comparative study of the two Teflon pistons with different diameters indicate statistically a greater hearing gain for the 0.4-mm prosthesis, especially in the lower frequencies.

• Authors: W Grolman, R A Tange, A J de Bruijn, A A Hart, P F Schouwenburg
• Journal: European archives of oto-rhino-laryngology : official journal of the European Federation of Oto-Rhino-Laryngological Societies (EUFOS) : affiliated with the German Society for Oto-Rhino-Laryngology - Head and Neck Surgery (Eur Arch Otorhinolaryngol) Vol. 254 Issue 9-10 Pg. 422-4 ( 1997) ISSN: 0937-4477 [Print] Germany
• PMID: 9438110 (Publication Type: Clinical Trial, Comparative Study, Journal Article)

Chemical References

• Polytetrafluoroethylene

Topics

• Adult
• Audiometry
• Auditory Perception (physiology)
• Humans
• Middle Aged
• Ossicular Replacement
• Otosclerosis (surgery)
• Polytetrafluoroethylene
• Retrospective Studies
• Stapes Surgery
• Treatment Outcome