title: Orbital implant exposure treatment with porcine dermal collagen patching.
abstract: OBJECTIVE
  To present a small case series of orbital implant exposures treated with porcine dermal collagen (Permacol, Tissue Science Laboratories PLC, Aldershot, Hants, UK) patching.
  
  
  METHODS
  A retrospective chart review of three cases of orbital implant exposure treated with Permacol patching.
  
  
  RESULTS
  Three cases were identified. There were 4 operative episodes of Permacol patching (one socket had two attempts at permacol patching). In all 4 cases the patch rapidly failed and melted away leaving behind the orbital implant exposure. All 3 patients required implant removal.
  
  
  CONCLUSIONS
  Orbital implant exposure remains a major long-term complication of evisceration and enucleation procedures. On the basis of our experience, we would not recommend using Permacol as a non-autologous material for covering exposed Medpor (Medpor, Porex Surgical, Atlanta, Georgia, USA) orbital implants. Further study is required to fully assess the safety and efficacy profile of Permacol in socket surgery.
authors.affiliation: Eye, Ear, Nose and Throat Centre, Queens Medical Centre, Nottingham, United Kingdom. AmarAlwitry@aol.com
authors.forename: A
authors.initials: A
authors.lastname: Alwitry
authors.forename: S J
authors.initials: SJ
authors.lastname: Burns
authors.forename: L C
authors.initials: LC
authors.lastname: Abercrombie
mesh_terms: D000328:Adult; D000368:Aged; D003094:Collagen; D005260:Female; D006801:Humans; D008297:Male; D009915:Orbit / Q000601:surgery*; D011095:Polyethylenes; D019736:Prostheses and Implants; D012189:Retrospective Studies; D014183:Transplantation, Heterologous
chemical_list: C084562:Medpor; C422414:Permacol; D011095:Polyethylenes; D003094:Collagen