title: Accuracy of suture adjustment in adjustable strabismus surgery evaluated at the initial postoperative examination.
abstract: OBJECTIVE
  To clarify the efficacy of sliding-noose type adjustable suture strabismus surgery, we evaluated the accuracy of suture adjustment based on data from the initial postoperative examination performed 1-4 weeks after the surgery.
  
  
  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 a resection or muscle transposition) was performed with an adjustable suture (Guyton's procedure), and the suture was adjusted 6-24 hours after surgery.
  
  
  RESULTS
  Twenty-six (76%) patients required suture adjustment one to eight times. In 50% and 75% of our patients, the errors from individual target angle were within +/- 0.8 and +/- 2.0 PD, respectively, whereas 2 (6%) patients with esotropia showed an undercorrection larger than 10 PD. The error distribution was almost the same throughout the range of preoperative deviation.
  
  
  CONCLUSIONS
  By using an adjustable suture with a sliding noose, pinpoint alignment of the eyes can be achieved in more than half of the cases, at least in the early postoperative period.
authors.affiliation: Department of Ophthalmology, Okayama University Medical School, Okayama, Japan.
authors.forename: Satoshi
authors.initials: S
authors.lastname: Hasebe
authors.forename: Chiaki
authors.initials: C
authors.lastname: Nakatsuka
authors.forename: Fumitaka
authors.initials: F
authors.lastname: Nonaka
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Fujiwara
authors.forename: Hiroshi
authors.initials: H
authors.lastname: Ohtsuki
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D005133:Eye Movements; D006801:Humans; D008875:Middle Aged; D009801:Oculomotor Muscles / Q000601:surgery*; D013508:Ophthalmologic Surgical Procedures; D011182:Postoperative Care; D015203:Reproducibility of Results; D013285:Strabismus / Q000601:surgery*; D013536:Suture Techniques