title: [A clinical analysis of sixty-seven cases with Duane's retraction syndrome].
abstract: OBJECTIVE
  To analyze the clinical manifestations and the methods and effects of surgical management on Duane's Retraction Syndrome (DRS).
  
  
  METHODS
  67 cases with DRS were summarized retrospectively. The data were recorded and analysed, including sex, age, type, clinical features, surgical methods and the results.
  
  
  RESULTS
  63 cases had only monocular involvement. The number of Type I DRS was 47 cases (35 cases with esotropia, 12 cases with exotropia). 8 cases were Type II DRS with exotropia and 12 cases were Type III DRS (11 of them with exotropia). In 37 cases with upshoot and/or downshoot phenomenon, 31 of them were associated with exotropia. Ipsilateral medial rectus or lateral rectus recession, or bilateral medial rectus recession, improved the head compensation position, narrow palpebral fissure and globe retraction, with improvement or elimination of the deviation. After the operation, 60 cases (90%) showed horizontal tropia less than 10 prism diopters. Upshoot and/or downshoot were improved in all of the 37 cases after recessing medial or/and lateral recti, or simultaneously weakening of the inferior oblique muscle.
  
  
  CONCLUSIONS
  Weakening medial and/or lateral recti can improve the clinical manifestations of DRS. Upshoot and downshoot are more common in eyes with exotropia. Lateral rectus recession is the main treatment method for relieving upshoot and downshoot in DRS with exotropia. We infer that the upshoot and downshoot phenomenon mainly related to the "bridle" effect. Recession of both horizontal recti can improve the serious clinical manifestations.
authors.affiliation: Tianjin Eye Hospital, Tianjin 300040, China. chenxia05@sohu.com
authors.forename: Xia
authors.initials: X
authors.lastname: Chen
authors.forename: Kan-xing
authors.initials: KX
authors.lastname: Zhao
authors.forename: Kun-ying
authors.initials: KY
authors.lastname: Song
authors.forename: Xin
authors.initials: X
authors.lastname: Guo
authors.forename: Hui-zhi
authors.initials: HZ
authors.lastname: Ma
authors.forename: Cui-qin
authors.initials: CQ
authors.lastname: Du
authors.forename: Li-na
authors.initials: LN
authors.lastname: Zhu
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D004370:Duane Retraction Syndrome / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D009801:Oculomotor Muscles / Q000601:surgery*; D012189:Retrospective Studies; D013285:Strabismus / Q000503:physiopathology / Q000601:surgery; D016896:Treatment Outcome