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  • Title: A comparison of implant extrusion rates and postoperative pain after evisceration with immediate or delayed implants and after enucleation with implants.
    Author: Liu D.
    Journal: Trans Am Ophthalmol Soc; 2005; 103():568-91. PubMed ID: 17057818.
    Abstract:
    PURPOSE: To examine implant extrusion rates after evisceration with immediate or delayed implants in patients with culture-proven endophthalmitis. To compare postevisceration and postenucleation pain. METHODS: This prospective, nonrandomized interventional case series included four groups of patients: group 1, 25 endophthalmitis patients undergoing evisceration with immediate implants; group 2, 15 endophthalmitis patients undergoing evisceration with delayed implants; group 3, 31 patients without endophthalmitis undergoing evisceration with immediate implants; and group 4, eight patients undergoing enucleations with implants. Standardized techniques and follow-up schedules were used. Postoperative pain was assessed by weighted frequency of pain medications used during two 48-hour periods. Statistical analysis was performed. Retrospective review of two series of patients undergoing evisceration was performed. RESULTS: No cases of implant extrusion occurred during an average follow-up of 37.9 months. Average implant size was 19.0 mm. Conjunctival dehiscence occurred in one patient. Average total pain scores were 20.8 in endophthalmitis patients with immediate implants; 22.1 in endophthalmitis patients with delayed implants; 20.3 in patients without endophthalmitis and with immediate implants; and 23.1 in patients with enucleations and immediate implant insertions. Retrospective review suggested possible causes of implant extrusion. CONCLUSION: Both immediate and delayed implant techniques appear safe in patients with endophthalmitis, with the former being simpler, more cost-effective, and perhaps less painful. Prolonged antibiotic therapy and smaller implants may render a false sense of security against implant extrusion; good surgical technique and meticulous postoperative wound care are essential. Postenucleation pain appears more severe than postevisceration pain.
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