Document Detail

Keratoprosthesis: current techniques.
MedLine Citation:
PMID:  17077656     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To compare and contrast the techniques and results of keratoprosthesis (KPro) using the Cardona device (1975-1985) with those related to the use of the Dohlman-Doane type 1 device (2003-2005). METHODS: We conducted a retrospective review of 31 cases of Cardona KPro implanted between 1975 and 1981 and a review of 25 cases of Dohlman-Doane type 1 KPro implanted between 2003 and 2005. Procedures were limited to eyes with a poor prognosis for traditional penetrating keratoplasty. RESULTS: In the Cardona cases, 39% (12/31) of patients achieved a visual acuity of 20/40 or better at some point postoperatively, degrading to 16% (5/31) at the end of the observation period. Fifty percent (15/31) required subsequent surgical revision of the KPro. Sixteen percent of cases (5/31) developed endophthalmitis, and 58% (18/31) developed retroprosthetic membranes. There were 5 dislocations of the prosthesis and an additional 3 frank extrusions (26%). Of the 25 Dohlman-Doane cases, there have been no reoperations, endophthalmitis, dislocations, or extrusions to date (8/15/05). Forty-eight percent (12/25) achieved 20/200 acuity or better, and 12% (3/25) achieved 20/40 or better. Retroprosthetic membranes formed in 3 cases. CONCLUSION: Although KPro remains a technique to be used in poor prognosis keratoplasty, improvements in the design of the device and surgical technique over the past 30 years have reduced the overall morbidity and severity of complications and improved the prognosis for visual rehabilitation.
James V Aquavella; Ying Qian; Gregory J McCormick; Jayachandra Reddy Palakuru
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Cornea     Volume:  25     ISSN:  0277-3740     ISO Abbreviation:  Cornea     Publication Date:  2006 Jul 
Date Detail:
Created Date:  2006-11-01     Completed Date:  2007-05-24     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8216186     Medline TA:  Cornea     Country:  United States    
Other Details:
Languages:  eng     Pagination:  656-62     Citation Subset:  IM    
University of Rochester Eye Institute, Rochester, MN, USA.
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MeSH Terms
Aged, 80 and over
Child, Preschool
Corneal Diseases / surgery*
Middle Aged
Prostheses and Implants*
Prosthesis Design
Prosthesis Implantation*
Retrospective Studies
Visual Acuity / physiology

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