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首页> 外文期刊>Journal of pediatric ophthalmology and strabismus >A randomized clinical trial comparing myectomy and recession in the management of inferior oblique muscle overaction
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A randomized clinical trial comparing myectomy and recession in the management of inferior oblique muscle overaction

机译：一项随机临床试验，比较了肌腱切除术和后退肌在下斜肌过度活动症治疗中的作用

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Purpose: It is still not clear whether inferior oblique recession or inferior oblique myectomy is a better option for weakening inferior oblique overaction (IOOA). The aim of this study was to compare the effect of these two methods on IOOA. Methods: Patients who were candidates for surgical management of IOOA were randomly assigned to either IO myectomy or recession. Complete ophthalmic examinations were performed before surgery. In the myectomy group, 5 mm was excised from the inferior temporal region of IO muscle(s). In the recession group, the IO muscle was disinserted and subsequently sutured to a point 2 mm lateral and 4 mm posterior to the insertion of the inferior rectus muscle on the temporal side. Satisfactory results were defined as an IO function of grade 0 or 1+ at 3 months postoperatively. Results: The study included 50 patients (82 eyes) with a mean age of 12.3 ± 5.9 years (range: 3 to 32 years). Both methods were effective on the weakening of IOOA (P < .001). The rate of satisfactory results was similar in both groups (P = .686). The rate of residual IOOA and IO underaction did not differ between the two groups. Regarding the changes of horizontal or vertical deviations, V pattern, and dissociated vertical deviation, there was no statistically significant difference between the two groups. Conclusion: For treatment of IOOA, both IO myectomy and recession can be used with similar success rate.
机译：目的：尚不清楚下斜肌萎缩或下斜肌切除术是否是减轻下斜肌过度活动（IOOA）的更好选择。本研究的目的是比较这两种方法对IOOA的影响。方法：将接受IOOA外科手术治疗的患者随机分配为IO肌瘤切除术或凹入术。手术前进行全面的眼科检查。在肌切除术组中，从IO肌肉的颞下区域切除5 mm。在衰退组中，将IO肌肉插入，然后缝合至外侧下直肌插入颞侧2 mm，后4 mm的位置。满意的结果定义为术后3个月的IO功能等级为0或1+。结果：该研究纳入了50名患者（82眼），平均年龄为12.3±5.9岁（范围：3至32岁）。两种方法均能有效降低IOOA（P <.001）。两组的满意结果率相似（P = .686）。两组之间的剩余IOOA和IO作用不足率没有差异。关于水平或垂直偏差，V图案和解离的垂直偏差的变化，两组之间在统计学上没有显着差异。结论：对于IOOA的治疗，可以同时进行IO肌切除术和后退术，成功率相近。

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