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  • Title: Outcome of surgery in 124 cases of Duane's Retraction Syndrome (DRS) treated by intraoperatively graduated recession of the medial rectus for esotropic DRS, and of the lateral rectus for exotropic DRS.
    Author: Kubota N, Takahashi H, Hayashi T, Sakaue T, Maruo T.
    Journal: Binocul Vis Strabismus Q; 2001; 16(1):15-22. PubMed ID: 11240932.
    Abstract:
    PURPOSE: To determine the outcome and effectiveness of simple horizontal muscle recession surgery in Duane's Retraction Syndrome (DRS). CASES & METHODS: A total of 194 cases of DRS were operated on by us during the past 25 years. Surgery was aimed at improving the binocular alignment and eye position at the primary position as well as any abnormal head posture. Sufficient data were available in 124 cases. Recession of the medial rectus muscle was performed on 76 cases with esotropia and of the lateral rectus on 48 cases with exotropia. Recession dosage was determined during surgery based on three factors: size of the preoperative strabismus in primary position; forced ductions/resistance to traction, and the appearance of the rectus muscle at surgery. RESULTS: Both the primary eye position and the abnormal head posture were satisfactorily improved in 119 cases (89%) after surgery with a result rated "excellent" or "good" by a residual deviation of 7 degrees or less and a definitely improved abnormal head posture, for all types of DRS deviations. CONCLUSION: Recession of the appropriate horizontal rectus muscle is a safe and effective primary procedure for both the primary deviation and abnormal head posture in all types of DRS.
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