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Otolaryngol Head Neck Surg. 2001 Sep;125(3):135-41.

Extrusion rates and hearing results in ossicular reconstruction.

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1
House Ear Clinic and House Ear Institute, Los Angeles, California 90057, USA.

Abstract

OBJECTIVES:

To examine hearing results, extrusion rates, and factors likely to affect outcome in patients who underwent ossicular chain reconstruction with Plasti-Pore and hydroxylapatite total ossicular replacement prostheses (TORPs) and partial ossicular replacement prosthesis (PORPs).

STUDY DESIGN AND SETTING:

Retrospective chart review was used. Subjects were 1210 consecutive tympanoplasties with or without mastoidectomy that involved ossicular reconstruction with TORPs (n = 560) or PORPs (n = 650) performed in a tertiary referral neurotologic private practice. Only 20% of the cases were primary surgeries, with the majority planned second stage or revision procedures.

RESULTS:

Average last postoperative air-bone gap (ABG) was 19.2 dB with closure of the ABG to within 20 dB in 62.9%. Hearing results were better for cases who had not had previous surgery, in those with a diagnosis other than chronic otitis media, when a cartilage graft was used, and for Plasti-Pore rather than hydroxylapatite. Extrusion was known to occur in 4%.

CONCLUSION:

After more than 25 years of use in our clinic, Plasti-Pore ossicular replacement prostheses continue to provide reliable hearing results with a low rate of extrusion.

PMID:
11555743
DOI:
10.1067/mhn.2001.117163
[Indexed for MEDLINE]

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