title: Pegging the porous orbital implant.
abstract: OBJECTIVE
  Hydroxyapatite (HA) orbital implants are commonly used for the anophthalmic socket. With a HA implant, if motility is not satisfactory then a peg system can be surgically placed in attempts to improve motility. The authors report the technique and results of 83 patients who received motility peg placement over an 8-year period by a single surgeon.
  
  
  METHODS
  Retrospective chart review of all patients with previous enucleation with either primary or secondary insertion of a HA implant who received a motility peg by a single oculoplastic surgeon between January 1999 and February 2007.
  
  
  RESULTS
  Eighty-three patients underwent placement of a titanium peg and sleeve during the study period. Complications seen in the follow-up period included discharge, pyogenic granuloma, and others. Infection was experienced in 1 case. Fourteen patients (17%) required further surgical management due to complications.
  
  
  CONCLUSIONS
  The largely positive results of this moderately sized case series validates the efficacy of pegging a hydroxyapatite orbital implant with minor risk of serious complications; this may have been due to a combination of factors including an experienced surgeon and adequate follow-up. As a procedure that can be completed in a hospital or minor surgical suite with sedation, it remains a viable option for many patients.
authors.affiliation: Department of Ophthalmology, University of Alberta, Edmonton, Alberta, Canada. rjohnsoneyelids@interbaun.com
authors.forename: Royce L C
authors.initials: RL
authors.lastname: Johnson
authors.forename: Cory L
authors.initials: CL
authors.lastname: Ramstead
authors.forename: Nawaaz
authors.initials: N
authors.lastname: Nathoo
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D017886:Durapatite; D015353:Eye Enucleation; D005133:Eye Movements / Q000502:physiology*; D005137:Eye, Artificial; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009915:Orbit / Q000601:surgery*; D020273:Orbital Implants; D016062:Porosity; D011183:Postoperative Complications; D017755:Prosthesis Fitting; D019919:Prosthesis Implantation; D019651:Plastic Surgery Procedures; D012189:Retrospective Studies
chemical_list: D017886:Durapatite