title: A new titanium peg system for hydroxyapatite orbital implants.
abstract: OBJECTIVE
  To evaluate a new hydroxyapatite-coated titanium sleeve and titanium peg system for HA orbital implants.
  
  
  METHODS
  The authors followed 54 patients receiving an HA-coated titanium sleeve and peg system and analyzed the complications associated with this peg system. The following data were recorded: type of surgery performed, size of implant used, type of HA used, time of pegging, follow-up duration, problems encountered, and treatment.
  
  
  RESULTS
  Fifty-seven patients received the HA-coated titanium peg and sleeve system. The average duration of follow-up was 15 months (range, 3-30 months). Three patients were lost to follow-up after 1 month. Complications associated with peg placement in 54 patients included: discharge (9.2%), pyogenic granulomas (14.8%), peg falling out during prosthesis removal (9.2%), poor transfer of movement (1.8%), clicking (3.7%), conjunctiva overgrowing peg (1.8%), part of sleeve shaft visible (9.2%), peg drilled on an angle (1.8%), HA visible around peg hole (3.7%), and loose sleeve (3.7%).
  
  
  CONCLUSIONS
  The HA-coated titanium sleeve and titanium peg is a new peg system available for HA orbital implants. Many of the complications associated with this peg system are similar to the commonly used polycarbonate peg system. Pyogenic granulomas and discharge, however, appear to be less frequently encountered with this new system. The HA-coated titanium sleeve and titanium pegs were well tolerated and appeared quieter in the socket than most polycarbonate pegs.
authors.affiliation: University of Ottawa Eye Institute, Ontario, Canada.
authors.forename: D R
authors.initials: DR
authors.lastname: Jordan
authors.forename: S R
authors.initials: SR
authors.lastname: Klapper
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D001863:Bone Screws; D020099:Coated Materials, Biocompatible; D017886:Durapatite; D005128:Eye Diseases / Q000601:surgery; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D008297:Male; D008875:Middle Aged; D009915:Orbit / Q000601:surgery; D020273:Orbital Implants; D011183:Postoperative Complications; D019919:Prosthesis Implantation; D014025:Titanium; D016896:Treatment Outcome
chemical_list: D020099:Coated Materials, Biocompatible; D017886:Durapatite; D014025:Titanium