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Polytetrafluoroethylene as a wrapping material for a hydroxyapatite orbital implant
1Department of Ophthalmology, Chang-Gung Memorial Hospital, Chang Gung University, Taipei, Taiwan.
Ophthalmic Plastic and Reconstructive Surgery
|August 3, 2000
Summary
Polytetrafluoroethylene (PTFE) is not ideal for wrapping porous coralline hydroxyapatite orbital implants. This material led to complications like implant exposure and infection in two out of five patients.
Area of Science:
- Ophthalmology
- Biomaterials Science
Background:
- Porous coralline hydroxyapatite orbital implants are effective for anophthalmic sockets.
- Donor sclera is a traditional wrapping tissue for orbital implants.
Purpose of the Study:
- To evaluate polytetrafluoroethylene (PTFE) as a substitute for donor sclera in wrapping orbital implants.
- To assess the safety and efficacy of PTFE as an orbital implant wrapping material.
Main Methods:
- Orbital implants were wrapped with PTFE in five patients undergoing enucleation.
- Postoperative outcomes were monitored for complications.
Main Results:
- Three out of five patients had uneventful postoperative courses.
- Two patients experienced complications: one with implant exposure and another with severe implant infection requiring removal.
Conclusions:
- Polytetrafluoroethylene (PTFE) is inferior to donor sclera for wrapping orbital implants.
- The use of PTFE as a wrapping material is associated with a higher risk of complications.