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Anzhelika Berezovskaya, Victor Gunter, Igor Zapuskalov; Titanium Nickelide Orbital Implants in Preparing Mobile Stump after Enucleation of the Eyeball. Invest. Ophthalmol. Vis. Sci. 2012;53(14):1445.
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To develop an effective and safe method of preparing mobile stump after enucleation of the eye, using orbital titanium nickelide (TiNi) implants.
Orbital implants were made of 20-100-µm thick porous TiNi thread swirled into hard sphere, 15-mm in diameter. Study included 12 patients who underwent monolateral enucleation of the eye due to post-traumatic atrophy of the eyeball, recurrent sympathetic ophthalmia, or terminal aching glaucoma. All surgeries were conducted under general anesthesia. After removal of the eyeball, the TiNi implant was inserted into the orbit. Rectus muscles were attached and sutured to the implant to provide mobility of the artificial stump. Follow-up period varied from 1 to 5 years.
Technical results were achieved due to the high biocompatibility of the implanted material, TiNi, which provides long-term and reliable stability of such implants and allows them to chronically function in the body without rejection. Porous structure of the implant enables free ingrowth of the connective tissue cells into the implant, which improves its fixation. Elastic properties of the implant allow for immediate intraoperative adjustment of its form and volume. In the postoperative period, central position of the stump remained stable and mobility of the stump did not change in all patients.
Our results suggest that TiNi orbital implants are effective and highly stable for preparing mobile stump after enucleation of the eye.
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