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Evisceration with hydroxyapatite implant. Surgical technique and review of 31 case reports
1Department of Ophthalmology, West Virginia University, Morgantown, USA.
Purpose:
To evaluate the use of hydroxyapatite (HA) as an orbital implant with evisceration.
Background:
Although several reports have documented good success with HA orbital implants and their use with enucleation, only a few reports mention HA with evisceration. These few reports are less favorable, with exposure rates as high as 67%. In contrast, the authors have had good success with evisceration and HA implants with no major complications and a low exposure rate.
Methods:
A retrospective analysis of all eviscerations with HA implant performed between January 1989 and July 1993 was completed (n = 31). Patients underwent evisceration with scleral modification, including anterior relaxing incisions and posterior sclerotomies to accommodate a large sphere without tension on the wound. Patient records were reviewed for demographic data, surgical indication, sphere size, clinical outcome, complications, and follow-up interval. The surgical technique is described.
Results:
All 31 patients underwent successful surgery with complications limited to exposure (6%), mild superior sulcus deficit (6%), and a conjunctival cyst (3%). No patient required further socket reconstruction, and no patient required peg placement to enhance motility. The average follow-up interval was 13.3 months.
Conclusions:
The authors have had good success using HA orbital implants for evisceration without major complications. Primary evisceration with HA implantation after posterior sclerotomies is a safe and effective method for treating patients with a blind, painful eye.
