title: Long-term stability of Teflon orbital implants.
abstract: Teflon orbital floor implants have become controversial owing to reports of implant-related complications. To determine the actual incidence of Teflon implant-related complications and factors associated with complications, we conducted a long-term follow-up study of 77 selected patients. We obtained data on 35 implants in 31 patients with a mean follow-up period of 16 years, representing an experience of 528 patient-implant years. The short-term complication rate (within 1 month of surgery) was 3.9 percent. The long-term complication rate was 2.8 percent. Concomitant antral packing and implantation of Teflon sheet were associated with a markedly higher risk of implant pocket infection. There was no case of implant migration with proper fixation. Facial growth was normal in three children in the series. We conclude that Teflon sheet is well-tolerated in the orbit in the long term. The low complication rate can be further reduced with proper fixation of the implant and avoidance of antral packing at the time of implantation.
mesh_terms: D000328:Adult; D002648:Child; D005147:Facial Bones / Q000254:growth & development / Q000293:injuries; D005260:Female; D005500:Follow-Up Studies; D005548:Foreign-Body Migration / Q000453:epidemiology; D006801:Humans; D008297:Male; D009915:Orbit / Q000601:surgery*; D011138:Polytetrafluoroethylene; D019736:Prostheses and Implants / Q000009:adverse effects*; D012887:Skull Fractures / Q000601:surgery; D013530:Surgical Wound Infection / Q000453:epidemiology; D013630:Tampons, Surgical / Q000009:adverse effects
chemical_list: D011138:Polytetrafluoroethylene