title: Traumatic wound rupture after Boston type 1 keratoprosthesis implantation.
abstract: OBJECTIVE
  To describe the incidence, characteristics, causes, treatment, and outcomes of traumatic wound rupture in patients with Boston type 1 keratoprosthesis (KPro).
  
  
  METHODS
  Retrospective case series.
  
  
  METHODS
  We studied 136 eyes of 122 patients who underwent KPro implantation at a single institute between November 2004 and May 2011.
  
  
  METHODS
  A chart review was performed to determine the incidence, characteristics, causes, treatments, and outcomes of traumatic wound rupture.
  
  
  RESULTS
  The 4 eyes of 4 patients that sustained traumatic wound rupture resulted in an incidence of traumatic wound rupture of 2.9% (4/136). This complication occurred, on average, at 4.2 months (range, 1-9 months) after the KPro was implanted. All ruptures occurred at the graft-host junction. The 2 eyes that had complete keratoprosthesis extrusion experienced decreased vision postrupture, from hand motions to no light perception, and 20/300 to count-fingers vision, respectively. One eye that had 4 clock hours of superior wound rupture recovered vision postrupture from light perception to 20/40. One eye that had 2 clock hours of superior wound rupture maintained a stable vision of 20/125 after repair.
  
  
  CONCLUSIONS
  The incidence of traumatic wound rupture after keratoprosthesis is comparable to that after penetrating keratoplasty. Patients should be aware that traumatic rupture is a lifelong concern and should use protective measures to prevent this complication from occurring.
authors.affiliation: Cincinnati Eye Institute, Cincinnati, Ohio, USA.
authors.forename: Andrea Y
authors.initials: AY
authors.lastname: Ang
authors.forename: Clara C
authors.initials: CC
authors.lastname: Chan
authors.forename: Michael L
authors.initials: ML
authors.lastname: Nordlund
authors.forename: Edward J
authors.initials: EJ
authors.lastname: Holland
mesh_terms: D000293:Adolescent; D001187:Artificial Organs; D003315:Cornea; D005131:Eye Injuries / Q000209:etiology* / Q000601:surgery; D005260:Female; D006801:Humans; D015994:Incidence; D015948:Keratoplasty, Penetrating; D008297:Male; D008875:Middle Aged; D011183:Postoperative Complications; D019919:Prosthesis Implantation; D012189:Retrospective Studies; D012421:Rupture; D013529:Surgical Wound Dehiscence / Q000209:etiology* / Q000601:surgery; D013536:Suture Techniques; D013997:Time Factors; D014792:Visual Acuity / Q000502:physiology; D055815:Young Adult