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Titolo:
Comparative electron microscopic study of the surface structure of gold, Teflon, and titanium stapes prostheses
Autore:
Kwok, P; Fisch, U; Strutz, J; Jacob, P;
Indirizzi:
Univ Regensburg, Dept Ear Nose & Throat, D-93042 Regensburg, Germany Univ Regensburg Regensburg Germany D-93042 , D-93042 Regensburg, Germany Univ Zurich, Dept Otorhinolaryngol, Zurich, Switzerland Univ Zurich Zurich Switzerland pt Otorhinolaryngol, Zurich, Switzerland
Titolo Testata:
OTOLOGY & NEUROTOLOGY
fascicolo: 5, volume: 22, anno: 2001,
pagine: 608 - 613
SICI:
1531-7129(200109)22:5<608:CEMSOT>2.0.ZU;2-9
Fonte:
ISI
Lingua:
ENG
Soggetto:
MIDDLE-EAR; SURGERY; STAPEDOTOMY; OTOSCLEROSIS; IMPLANTS; RECONSTRUCTION; STAPEDECTOMY; NECROSIS;
Keywords:
electron microscopy; stapes prosthesis; titanium prosthesis; stapedotomy;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Clinical Medicine
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Kwok, P Univ Regensburg, Dept Ear Nose & Throat, Franz Josef Str Allee 11,D-93042Regensburg, Germany Univ Regensburg Franz Josef Str Allee 11 Regensburg Germany D-93042
Citazione:
P. Kwok et al., "Comparative electron microscopic study of the surface structure of gold, Teflon, and titanium stapes prostheses", OTOL NEURO, 22(5), 2001, pp. 608-613

Abstract

Hypothesis: The goal of this study was to compare stapes prostheses of different materials with respect to their surface structures and to discuss their suitability for their use in stapes surgery. Background: The surface condition of a stapes prosthesis plays an important role in relation to the type of membrane that forms between the stapes piston and the bony edge of the stapedotomy opening. The quality of this membrane in thickness and mobility is one of the determinants for postoperativehearing improvement. Methods: The surface conditions of gold, Teflon/steel, Teflon/platinum, and titanium stapes prostheses were examined with a scanning electron microscope. The loop, shaft, and end of each prosthesis were studied. Results: The gold piston was the smoothest of the four pistons examined. When it was cut with a scalpel, a very smooth surface was achieved at the end area. The Teflon piston had the roughest surface. However, when it was cut, a smooth surface with a parallel arrangement of fibers resulted. Its steel loop was the smoothest, followed by gold and platinum. The titanium shaft had a scaly surface, which remained when the end of the shaft was shortened. Conclusion: Because a certain roughness of the piston surface is necessaryfor the development of a stable membrane between the piston and the edge of the stapedotomy opening, the titanium prosthesis is considered to be the most suitable for stapes surgery of the three pistons examined.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/02/20 alle ore 02:25:52