ABSTRACT
BACKGROUND: Fibrin sealant is an effective hemostatic agent and a useful tissue sealant. Studies have also suggested that fibrin sealant may accelerate the normal wound-healing process. OBJECTIVE: This study was designed to ascertain whether fibrin sealant would enhance wound healing after CO(2) laser resurfacing in a guinea pig model. METHODS: The CO(2) laser was used to create equal areas of skin resurfacing on both sides of 14 Dunkin Hartley guinea pigs. Fibrin sealant was applied to the treatment side, whereas bacitracin was applied to the control side. Biopsies of these areas were performed on days 1, 3, 7, and 10. A histologic evaluation was performed with the use of a grading scale that compared acute and chronic inflammation, granulation tissue, collagen deposition, and epidermal regeneration. RESULTS: The wounds treated with fibrin sealant demonstrated a statistically significant reduction in the degree of acute and chronic inflammation as well as collagen deposition. At day 7, fibrin sealant was noted to enhance neovascularization and result in a slight delay in reepithelialization. All wounds were completely reepithelialized at day 10. No wound infections or other complications were noted as a result of the application of fibrin sealant. CONCLUSIONS: Although wound healing was not accelerated, the application of fibrin sealant after CO(2) laser resurfacing diminished the acute and chronic inflammatory response, enhanced neovascularization, and reduced collagen accumulation. Further research is needed to assess whether the effects of fibrin sealant noted in this study result in improved cosmetic healing after CO(2) laser resurfacing. (Aesthetic Surg J 2001;21:509-517.).
Subject(s)
Foreign-Body Reaction/etiology , Polytetrafluoroethylene/adverse effects , Proplast/adverse effects , Prostheses and Implants/adverse effects , Skin Diseases/etiology , Temporomandibular Joint/surgery , Adult , Chronic Disease , Female , Follow-Up Studies , Foreign-Body Reaction/pathology , Giant Cells, Foreign-Body/pathology , Granuloma, Foreign-Body/etiology , Granuloma, Foreign-Body/pathology , Humans , Skin Diseases/pathology , Temporomandibular Joint/injuriesABSTRACT
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.
