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학술저널
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연세대학교 의과대학 Yonsei Medical Journal Yonsei Medical Journal 제48권 제6호
발행연도
2007.1
수록면
955 - 962 (8page)

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Purpose: In the field of ophthalmology, the conjunctival autograft is a useful therapeutic material in many cases, but the small size of the autograft is a disadvantage. Therefore, we evaluated the feasibility of taking an expanded sample of conjunctival tissue using a subtenon's silicone implant. Materials and Methods: We included a total of nine rabbits; eight rabbits were operative cases, and one was a control. A portion of conjunctival tissue from the control rabbit, which did not undergo surgery, was dissected and examined to determine whether it was histologically different from the experimental group. The surgical procedure was performed on eight rabbits via a subtenon's insertion of a silicone sponge in the left superior-temporal portion; after surgery, we dropped antibiotics into the eyes. We sacrificed a pair of rabbits every three days (on days 3, 6, 9, and 12) after surgery, removed the expanded conjunctival tissues with the silicone sponge implants, and measured their sizes. Results: The mean size of the expanded conjunctival tissues was 194.4mm2. On the third day, we were able to harvest a 223.56mm2 section of conjunctival tissue, which was the most expanded sample of tissue in the study. On the twelfth day, we removed a 160.38mm2 section of conjunctival tissue, which was the least expanded sample of tissue. Statistically, there were no significant differences in the mean dimensions of the expanded conjunctival tissues for each time period. Microscopic examinations showed no histological differences between the expanded conjunctival tissues and the normal conjunctival tissues. Conclusion: The results reveal that this procedure is a useful method to expand the conjunctiva for grafting and transplantation.

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