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Gore-Tex as an orbital implant material
Ophthalmic Plastic and Reconstructive Surgery
|December 8, 1998
Summary
Gore-Tex spheres show promise as orbital implants in rabbits, demonstrating good tolerance and cellular ingrowth without infection or extrusion. This suggests potential for permanent use in ocular reconstructions.
Area of Science:
- Ophthalmology
- Biomaterials Science
- Surgical Innovation
Background:
- Orbital implants are crucial for restoring ocular volume and cosmesis after enucleation.
- Current implant materials face challenges including extrusion and infection.
- Gore-Tex, a biocompatible material, has potential for use in orbital reconstruction.
Purpose of the Study:
- To investigate the biocompatibility and efficacy of Gore-Tex spheres as orbital implants.
- To evaluate the host tissue response to Gore-Tex orbital implants in a rabbit model.
Main Methods:
- Enucleation of the left eye in six New Zealand white rabbits.
- Implantation of modified Gore-Tex spheres as orbital implants.
- 6-week follow-up period including histopathological analysis.
Main Results:
- No postoperative infections, exposures, or extrusions were observed.
- Histopathology revealed acute and chronic inflammation surrounding implants.
- Significant fibrovascular ingrowth into Gore-Tex implants up to 500 microns was noted.
Conclusions:
- Gore-Tex spheres are well-tolerated orbital implants in vivo.
- The material facilitates cellular infiltration and fibrovascular ingrowth.
- Gore-Tex demonstrates potential as a permanent orbital implant material.