下斜肌前徙术或切除术减弱下斜肌的比较：20例前瞻性研究
Comparison of inferior oblique muscle weakening by anterior transposition or myectomy: a prospective study of 20 cases.
作者信息
Min B M, Park J H, Kim S Y, Lee S B
机构信息
Department of Ophthalmology, Chungnam National University, Taejon, Korea.
出版信息
Br J Ophthalmol. 1999 Feb;83(2):206-8. doi: 10.1136/bjo.83.2.206.
BACKGROUND/AIMS: Among the various weakening techniques of inferior oblique muscle overaction, the most commonly used techniques include myectomy, recession, and anterior transposition. Anterior transposition and myectomy were compared to evaluate the surgical results in inferior oblique overaction.
METHODS
20 children with bilateral +3 overacting inferior oblique muscles underwent a prospective randomised study by which the anterior transposition procedure in one eye was compared with the myectomy procedure in the other eye.
RESULTS
Postoperative follow up averaged 2 years. The success rates in two surgical procedures were 85% for the anterior transposition and 25% for the myectomy (standard of success was based on zero inferior oblique overaction). In only one case did the anterior transposition tend to limit the elevation of the eye in the midline, adduction, and abduction. Anterior transposition produced hypotropia at the primary position in only one case. Most eyes that underwent myectomy (75%) showed apparent residual overaction.
CONCLUSION
The anterior transposition appeared to be more effective in eliminating the overaction of inferior oblique muscle than the myectomy.
背景/目的：在多种减弱下斜肌亢进的技术中，最常用的技术包括肌切除术、后徙术和前徙术。比较前徙术和肌切除术，以评估下斜肌亢进的手术效果。
方法
20例双侧下斜肌亢进+3的儿童进行了一项前瞻性随机研究，将一只眼的前徙术与另一只眼的肌切除术进行比较。
结果
术后平均随访2年。两种手术的成功率分别为：前徙术85%，肌切除术25%（成功标准为下斜肌无亢进）。仅1例前徙术有导致眼球在中线、内收和外展位上抬受限的倾向。仅1例前徙术在第一眼位产生了下斜视。大多数接受肌切除术的眼（75%）表现出明显的残余亢进。
结论
前徙术在消除下斜肌亢进方面似乎比肌切除术更有效。
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