title: A comparison of hang-back with conventional recession surgery for exotropia.
abstract: BACKGROUND
  The hang-back loop suspension surgical technique for rectus muscle recession offers potential advantages over the conventional rectus muscle recession, including better exposure at the site of scleral sutures, shorter procedure duration, and lower risk of scleral perforation. Previous reports suggest that the hang-back technique for lateral rectus recession for exotropia results in poorer surgical success and may require a different surgical dosage.
  
  
  METHODS
  We compared strabismus in a nonrandomized series of 55 children with exotropia treated with conventional surgery or hang-back surgery. Those in the hang-back (suspension) recession group were on average 2.5 years younger and had 8(Delta) more preoperative exotropia at distance.
  
  
  RESULTS
  Surgical outcomes were not significantly different in the two treatment groups. Multivariate logistic regression suggests that outcomes are at least equivalent to conventional surgery after adjusting for age, severity, and other preoperative factors likely associated with outcome.
  
  
  CONCLUSIONS
  The hang-back surgical technique was as effective as conventional lateral rectus recession surgery for children with exotropia.
authors.affiliation: Department of Ophthalmology, University of Pennsylvania Medical School, Philadelphia, PA, USA.
authors.forename: Anton
authors.initials: A
authors.lastname: Orlin
authors.forename: Monte
authors.initials: M
authors.lastname: Mills
authors.forename: Gui-Shang
authors.initials: GS
authors.lastname: Ying
authors.forename: Chengcheng
authors.initials: C
authors.lastname: Liu
mesh_terms: D002648:Child; D002675:Child, Preschool; D005099:Exotropia / Q000601:surgery*; D005260:Female; D006801:Humans; D008297:Male; D009801:Oculomotor Muscles / Q000601:surgery*; D013508:Ophthalmologic Surgical Procedures; D011446:Prospective Studies; D012590:Sclera / Q000601:surgery; D013536:Suture Techniques