Park C, Park S C, Park C J, Rhee S W
Department of Ophthalmology, St. Mary's Hospital, Catholic University Medical College, Seoul, Korea.
Korean J Ophthalmol. 1993 Dec;7(2):59-64. doi: 10.3341/kjo.1993.7.2.59.
Using a rabbit model, we assessed the postoperative status and histopathologic findings of superior oblique tenotomy with silicone expander procedure. In the control group we marked and cut the superior oblique, and in the experimental group we inserted a silicone 240 retinal band 4 mm in length along the edges of incision. At the postoperative weeks 1,3,5 and 7, we randomly chose five rabbits and made a histopathologic examination after hematoxylin-eosin and Masson's trichrome stain. The distance between the incised edges was various in the control group, but constant in the experimental group. With time inflammation decreased and fibrosis of the superior oblique increased. Foreign body reaction occurred around the suture material in both groups., but not around the silicone expander. At 5 weeks atrophy of the superior oblique was observed in both groups. From the above results, we concluded that the superior oblique lengthening procedure using silicone expander is a useful surgical method for weakening the superior oblique muscle.
我们使用兔模型评估了硅胶扩张器下斜肌切断术的术后状态和组织病理学结果。在对照组中，我们标记并切断了上斜肌，而在实验组中，我们沿着切口边缘插入了一条长度为4mm的硅胶240视网膜带。在术后第1、3、5和7周，我们随机选择5只兔子，在苏木精-伊红染色和马松三色染色后进行组织病理学检查。对照组切开边缘之间的距离各不相同，但实验组的距离恒定。随着时间的推移，炎症减轻，上斜肌的纤维化增加。两组缝线材料周围均出现异物反应，但硅胶扩张器周围未出现。5周时，两组均观察到上斜肌萎缩。根据上述结果，我们得出结论，使用硅胶扩张器的上斜肌延长术是一种削弱上斜肌的有效手术方法。
