title: [Accuracy of suture adjustment in sliding noose type adjustable strabismus surgery].
abstract: OBJECTIVE
  To clarify the efficacy of adjustable suture strabismus surgery with sliding noose, we evaluated the accuracy of suture adjustment.
  
  
  METHODS
  Thirty-four patients with various types of strabismus participated [age range: 12-79 years, range of far deviation: 4-123 prism diopters(PD)]. Under sub-Tenon anesthesia, a recession(with or without an additional resection or a muscle transposition) was performed with an adjustable suture(Guyton's procedure), and the suture was adjusted 6-24 hours after the surgery. Based on the initial postoperative examination performed 1-4 weeks(mean: 2.8 weeks) after the surgery, errors in the far deviation from the individual target were analyzed.
  
  
  RESULTS
  Twenty-six(76%) patients required suture adjustment 1-8 times. In 50% and 75% of our patients, the errors were within +/- 0.8 and +/- 2.0 PD, respectively, whereas 2(6%) patients with esotropia showed an undercorrection larger than 10 PD. Distribution of the errors was the same throughout the range of pre-operative deviation.
  
  
  CONCLUSIONS
  By using the sliding noose type adjustable suture, a pin-point alignment of the eyes can be established in more than 50% of cases, at least, in the early post-operative period.
authors.affiliation: Department of Ophthalmology, Okayama University Medical School, 2-5-1 Shikata-cho, Okayama 700-8558, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Hasebe
authors.forename: Takashi
authors.initials: T
authors.lastname: Yamane
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Fujiwara
authors.forename: Fumitaka
authors.initials: F
authors.lastname: Nonaka
authors.forename: Chiaki
authors.initials: C
authors.lastname: Nakatsuka
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ohtsuki
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D005133:Eye Movements; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013285:Strabismus / Q000503:physiopathology / Q000601:surgery*; D013536:Suture Techniques; D016896:Treatment Outcome; D015348:Vision, Binocular