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Results for “TYMPANOPLASTY”

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At least 667 records · Page 37Linked to original sources
PubMedDate not supplied

Microclip application in tympanoplasty.

A new technique for attaching a tympanoplastic graft to its recipient bed is presented. One millimeter stainless steel "microclips" are used to hold the tympanic graft securely in position. Results and experience of microclip application in 404 cases are discussed.

Ear, Middle↗
PubMed1990

Ceravital versus plastipore in tympanoplasty: a randomized prospective trial.

The hearing results and extrusion rates for ossicular chain reconstruction using a new material called Ceravital, a bioactive glass ceramic, were compared with those for Plastipore, a porous polyethylene that is our standard for synthetic materials. Our null hypothesis was that the results of the two materials were similar. A Ceravital or a Plastipore prosthesis was randomly assigned to 112 consecutive patients. We had 6-month follow-up on 100 patients and 3-year follow-up on 80 patients. The average air-bone gap at 4,000 Hz was 6 dB less with Plastipore than with Ceravital (p = .036). Patients were twice as likely to have an air-bone gap of 15 dB or less with Plastipore than with Ceravital (40% versus 21%; p = .061). Two of the 38 patients with Ceravital prostheses had a late hearing-result failure due to resorption of the prosthesis material. The materials had similar extrusion rates. We rejected our null hypothesis. The Plastipore group had better hearing results than did the Ceravital group.

Analysis of Variance↗
PubMed1992

Fascia and perichondrium atrophy in tympanoplasty and recurrent middle ear atelectasis.

Fascia and perichondrium grafts to replace and reinforce thin, atrophic tympanic membranes (TMs) are recommended by several authors to correct middle ear atelectasis by forming a fibrous, collapse-resistant TM. This study reviewed the status of connective tissue grafts performed over the 10-year period from 1979 to 1988 to determine if these grafts would maintain sufficient strength and fibrous character to resist recurrent atelectasis. The author used fascia or perichondrium to repair 89 TM defects, and 63 ears were available for follow-up: 54 had cholesteatomas and 9 had perforations. Graft atrophy was judged by microscopic otoscopy and Kodachrome otophotography. Fascia TM grafts atrophied in 35 of 43 ears (80%), and perichondrium atrophied in 8 of 20 ears (40%). Grafts maintained their relatively thick and fibrous character in only 20 of 63 ears (32%). If fascia and perichondrium used to correct atelectasis were to atrophy at the same rate as the grafts in this series, atelectasis would recur after attempts to reinforce atrophic TMs. Atelectasis-prone middle ears require intubation despite surgery.

Adolescent↗
PubMed1980

Tympanoplasty.

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Cholesteatoma↗
PubMedDate not supplied

Gelatin film sandwich in tympanoplasty.

A technique is presented that utilizes two sheets of gelatin film as a sandwich to provide a scaffold for medial support and lateral cover to fascia grafts while permitting visual inspection of both fascia and tympanic membrane.

Fascia↗
PubMed1986

Regenerated middle ear mucosa after tympanoplasty. Part II. Scanning electron microscopy.

The ultrastructural appearance of the regenerated middle ear epithelium, found at the second operation of staged ICWT with mastoidectomy, has been investigated herein with the scanning electron microscope. The regenerated epithelium consists of flat nonciliated cells, "elevated" nonciliated cells with microvilli, and ciliated cells. Secretory material is present on the surface of the "elevated" nonciliated cells surrounding the ciliated ones. Regeneration of the mucosa occurs following precise topographic differences that mimic the distribution of epithelial cells in the normal middle ear. It is confirmed that a morphologically normal middle ear epithelium regenerates to cover all denuded bone surfaces within 12 months--after first stage ICWT with mastoidectomy--when silicone rubber sheeting has been used to maintain an aerated middle ear and mastoid space.

Cilia↗
PubMed1988

Traction suture tympanoplasty.

Subtotal tympanic membrane perforations are very common in Micronesia. The great distance between the islands, primitive conditions, and shortages of medical facilities and supplies must all be considered when a technique is designed for the closure of these perforations. Such a technique, using dissolvable sutures to position and support a medial temporalis fascia graft, is presented. A suture is used to place traction on the graft to assure proper placement under the anterior remnant or anterior canal wall skin. The graft is placed medial to the remnant but lateral to the malleus handle, which has been carefully dissected free of epithelium. Two hundred eighty-one cases were followed for 6 months or more, with a success rate of slightly more than ninety-five percent. Complications of blunting, lateralization, reperforation of the graft, and cholesteatoma formation are discussed.

Child↗
PubMed1959

Tympanoplasty.

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Ear, Middle↗