Abstract
Purpose: To compare the results of augmented superior rectus transposition (with or without medial rectus recession) with simple medial rectus recession in the treatment of patients with esotropic Duane retraction syndrome.
Methods: This was a prospective, randomized, and interventional comparative study of 20 patients with esotropic type 1 Duane retraction syndrome. Patients were randomly divided into two groups. In the first group (superior rectus transposition group), superior rectus transposition with or without medial rectus recession was performed. In the second group (non-superior rectus transposition group), unilateral medial rectus recession was performed.
Results: Each group included 10 patients. Esotropia improved from 20.4 prism diopters (PD) preoperatively to 0.6 PD postoperatively in the superior rectus transposition group and from 225 PD preoperatively to 0.9 PD postoperatively in the non-superior rectus transposition group. Face turn improved from 11.5 degrees preoperatively to 0.5 degrees postoperatively in the superior rectus transposition group and from 12 degrees preoperatively to 1.5 degrees postoperatively in the non-superior rectus transposition group. Abduction improved in the superior rectus transposition group from -3.9 preoperatively to -3.1 postoperatively and from -3.9 preoperatively to -3.6 postoperatively in the non-superior rectus transposition group. Vertical deviation developed in two cases in the superior rectus transposition group.
Conclusions: Both superior rectus transposition and medial rectus recession are effective in the elimination of esotropia and face turn in patients with esotropic Duane retraction syndrome. Superior rectus transposition is more effective in improving abduction, but it can be complicated by vertical deviation.