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Orbital Implant (orbital + implant)

Distribution by Scientific Domains

Medical Sciences	100%

Selected Abstracts

Review of 345 eye amputations carried out in the period 1996,2003, at Rigshospitalet, Denmark

ACTA OPHTHALMOLOGICA, Issue 2 2010
Marie Louise Roed Rasmussen
Abstract. Purpose:, The aim of this study was to identify the number of eye amputations, and the causative diagnoses, indications for surgery and surgical techniques applied, and to evaluate a possible change in surgical technique in a tertiary referral centre in Denmark. Methods:, The hospital database was screened using surgery codes for patients who had undergone bulbar evisceration, enucleation or orbital exenteration in the period 1996,2003. Patient records were reviewed for gender, age, time since surgery, causative diagnosis (the disease process leading to the indication for amputation), indication for eye amputation, type of surgery and whether an implant was applied. Results:, A total of 345 patients were identified as having undergone eye amputation during the 8-year period. Indications for eye amputation were: painful blind eye (127); neoplasm (119); infection (42); recent injury (25); disfiguring blind eye (25); prevention of sympathetic ophthalmia (5), and other reasons (2). Surgical procedures included 174 eviscerations, 154 enucleations and 17 orbital exenterations. The mean number of surgeries per year was 43.1. An orbital implant was applied in 168 patients. Conclusions:, The most frequent indications for eye amputation were painful blind eye (37%) and neoplasm (34%). During the study period, the annual number of eye amputations was stable, but an increase in bulbar eviscerations was noticed. Orbital implants were used in 33% of patients in 1996 and 67% in 2003. [source]

Scleral wrap increases the long-term complication risk of bone-derived hydroxyapatite orbital implants

CLINICAL & EXPERIMENTAL OPHTHALMOLOGY, Issue 8 2008
Tze'Yo Toh MBBS(Hons)
Abstract Background:, This study was prompted by previous findings that suggested that scleral wrapping increased the rate of complications following insertion of bone-derived hydroxyapatite orbital implants and compared the long-term results of implants inserted with and without scleral wraps. Methods:, This retrospective case series reviewed the long-term outcomes of 159 patients who had undergone enucleation with insertion of a bone-derived hydroxyapatite orbital implant at Dunedin Hospital between 1977 and 2006. Implants were inserted with and without scleral wraps in 85 and 74 cases, respectively. Follow up was 0.5,27.5 years (mean 8.2 years) for the whole series and 9.7 years for the sclera group and 6.7 years for the group without sclera. Patient details were obtained from theatre records, case note review, patient interview and examination, interview of patient relatives and family general practitioner records. The main outcome measures were the rates of minor or major complications and their treatments and outcomes. Results:, Twenty-seven cases (17%) suffered minor complications of limited implant exposure that either healed spontaneously, with implant drilling or wound resuturing and 11 cases (7%) suffered major complications requiring explantation. Of 38 patients with postoperative complications, 31 (82%) had scleral wraps compared with 7 (18%) without sclera (P < 0.001; OR 5.14, 95% CI 2.00,14.78). Conclusion:, Bone-derived hydroxyapatite orbital implants inserted without scleral wrap were associated with better clinical outcomes and a lower rate of long-term complications. It is therefore recommended that these implants be inserted without a scleral wrap. [source]