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KMID : 0361020000430121283
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Korean Journal of Otolaryngology - Head and Neck Surgery
2000 Volume.43 No. 12 p.1283 ~ p.1288
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Scanning Electron Microscopic Study on Surface and Component of Extruded Polycel TORPs and PORPs
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Jang Chul-Ho
Kim Young-Ho
Park See-Young
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Abstract
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Background and Objectives: During the last decade, the surgical use of alloplasts has become more and more widespread among otologists. But extrusion has been the general problem associated in using alloplasts. This study analyzes the change of surface and microcomponent of the extruded Polycel prosthesis following a long-term middle ear implantation.
Materials and Methods: Nine extruded Polycel prosthesis were investigated using scanning electronmicroscopy(SEM) and energy dispersive spectrometer (EDS).
Results: They all showed a severe resorption of fibrous encapsulation and partial resorption of the shaft which faced stapes and footplate. The carbon component decreased and nitrogen and oxide increased more than the original Polycel due to microdegradation.
Conclusion : Consistent microdegradation and resorption may be one of the factors causing extrusion of Polycel.
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KEYWORD
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Extrusion, Polycel, SEM, EDS
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