Journal of the Korean Ophthalmological Society 2003;44(4):904-910.
Published online April 1, 2003.
The Efficacy of Unilateral Rectus Resection in the Reoperation of Strabismus.
Sin Chul Kim, Myung Mi Kim
Department of Ophthalmology, Yeungnam University College of Medicine, Daegu, Korea. mmk@med.yu.ac.kr
사시의 재수술에서 단안 직근 절제술의 효과
김신철 ( Sin Chul Kim ) , 김명미 ( Myung Mi Kim )
Abstract
PURPOSE
To study the efficacy of unilateral rectus resection in the surgical treatment of undercorrected or recurrent strabismus. METHODS: A retrospective chart review of patients who had undergone a unilateral rectus resection with at least 6 months (mean 35.6 months) of postoperative follow-up was performed. RESULTS: A resection of a single rectus muscle was undergone by 92 patients: 70 underwent a unilateral resection of the medial rectus and 22 underwent a unilateral resection of the lateral rectus. The mean preoperative deviations of patients were 23.6+/-5.9 prism diopters (PD). The amount of unilateral medial rectus resection ranged from 3 to 7 mm and unilateral lateral rectus resection ranged from 5 to 10 mm. The satisfactory surgical result was considered to be any deviation within 8 PD. The success rates were 81.4% in the unilateral medial rectus resection group and 72.7% in the unilateral lateral rectus resection group. The satisfactory surgical result of the group of preoperative deviation less than or equal to 20 PD was 93.2%, the group of greater than 20 PD and less than or equal to 25 PD was 65.6% and the group of greater than 25 PD was 68.8%. This difference in results between three groups was statistically significant (p=0.006). CONCLUSIONS: The unilateral rectus resection is an effective procedure for the treatment of undercorrected or recurrent strabismus with small to moderate preoperative deviations.
Key Words: Undercorrected or recurrent strabismus;Unilateral rectus resection


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