Type III--Polyethylene Columella Tympanoplasty: Long-Range Review of 28 Cases

Siedentop, Karl H.; Brown, Robin C.

doi:10.1001/archotol.1966.00760020562012

Archives of Otolaryngology - Head and Neck Surgery

1966

DOI: 10.1001/archotol.1966.00760020562012

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Type III--Polyethylene Columella Tympanoplasty: Long-Range Review of 28 Cases

Karl H. Siedentop¹,

Robin C. Brown²

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Cited by 16 publications

(1 citation statement)

References 8 publications

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“…Emmett, Shea, and Moretz) and the Division of Otolaryngology at Chapel Hill, North Carolina (Dr. Emmett). Presented at the Annual Meeting of the American Academy of Otolaryngology-Head and Neck Surgery, Atlanta, Ga., Oct. [20][21][22][23][24]1985. Submitted for publication Oct. 21, 1985;accepted Feb. 26, 1986.…”

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confidence: 99%

Long‐Term Experience with Biocompatible Ossicular Implants

Emmett

Shea

Moretz

1986

Otolaryngol.--head neck surg.

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The senior author's 8-year personal experience with biocompatible ossicular implants is reviewed. Four hundred sixty-one consecutive operations, in which high-density polyethylene sponge ossicular replacement prostheses were used, are grouped according to the Bellucci classification of chronic otitis media. The prostheses used were the drum-to-footplate prosthesis (TORP, total) and the drum-to-stapes prosthesis (PORP, partial)*. Each group's short- and long-term hearing results are compared. Prosthesis extrusion and persistent or recurrent conductive hearing loss are the most common causes of operation failure. Failures within each group are analyzed, and techniques to prevent these complications are outlined.

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confidence: 99%

Long‐Term Experience with Biocompatible Ossicular Implants

Emmett

Shea

Moretz

1986

Otolaryngol.--head neck surg.

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The applicability of porous polyethylene for tympanoplasty

Handrock

Mulch

Handrock

1979

Arch Otorhinolaryngol

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The problem of a replacement material for the reconstruction of the posterior wall of the auditory canal, as well as for the obliteration of the radical cavity has not been solved satisfactor;ly so far. In order to examine the possible applicability of porous plastics, the posterior wall of the auditory canal of guinea pigs was first removed and then reconstructed using porous polyethylene and filling the bulla tympanica with fine polyethylene chips. One third of the animals had an infected middle ear at the time of implantation. Histologic assessments were made until 24 weeks after implantation. In 80% of the animals the implant settled well, even in cases where the middle ears had been originally infected. By proliferation of vessels and connective tissue, the polyethylene had almost been completely integrated into the surrounding tissue after one week. Extent and frequency of metaplastic osseous growth was greater inthe chip-filled bulla than in the reconstructedposterior wall(Fig. 9). After four weeks, the new osteoid substance was firmly connected with the regional bone (Fig. 4). According to these results, it would seem possible to use porous polyethylene even for the nonaseptic implant bed as it is found in the chronically infected middle ear.

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Tissue response of several polymeric materials implanted in the rat middle ear

Williams

Blayney

1987

Biomaterials

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Type III--Polyethylene Columella Tympanoplasty: Long-Range Review of 28 Cases

Cited by 16 publications

References 8 publications

Long‐Term Experience with Biocompatible Ossicular Implants

Long‐Term Experience with Biocompatible Ossicular Implants

The applicability of porous polyethylene for tympanoplasty

Tissue response of several polymeric materials implanted in the rat middle ear

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