Experimental Strabismus Surgery using N-Butyl-2-Cyanoacrylate(Histoacry(R))

ABSTRACT

Strabimus surgeries using n-butyl-2-cyanoacrylate and 6-0 vicryl suture material were performed in 16 albino rabbits. Both eyes of 16 rabbits were used. The superior and inferior rectus muscles were recessed and resected 5 mm. In 12 rabbits, n-butyl-2-cyanoacrylate was used and those rabbits were divided into 3 groups, each group(4 rabbits, 8 eyes) was sacrificed 1, 2, and 3 weeks after operation respectively. The eyes were enucle ated to examine the tensile strength and pathologic findings of the attached area. In 4 rabbits, 6-0 vicryl suture material was used a control group in this study. This group was sacrificed and examined 3 weeks following the operation. In the cyanoacrylate groups, there were statistically significant differences and a chrono-logically increasing thendency of tensile strength between groups. Between the cyanoacrylate and the suture material group at 3 weeks post operation, there was no statistically significant difference in the tensile strength. Pathologically, extraocular muscle bundles revealed patchy areas of interstitial inflammatory infiltration and fibrosis in the cyanoacrylate groups. Capillary telangiectasia and muscle fiber regeneration were commonly observed. The findings in specimens 3 weeks after operation revealed rather mild changes, suggesting healed lesions. In the suture material group, mild inflammatory reactions were found.