title: Comparative analysis of two different alar base sutures after Le Fort I osteotomy: randomized double-blind controlled trial.
abstract: OBJECTIVE
  The aim of this prospective study was to analyze the efficacy of a new alar base cinch suture by comparing it with the commonly used cinch suture described by Schendel and Delaire in Dr. William Bell's book.
  
  
  METHODS
  Thirty-five patients submitted to maxillary impaction and/or advancements of ≥ 3 mm were randomly divided into 2 groups. Group 1 received an extra oral alar base cinch suture, and patients from group 2 received the classic intraoral suture. Alar and alar base width were measured before and after surgery in digital photographs, with the patient's head in a submental oblique view. Data were reported as means and standard deviations, and difference between groups were determined using Welch t test. A P value of <.05 was considered to be statistically significant.
  
  
  RESULTS
  Mean alar base widening was 1.38 mm in group 1 and 2.5 mm in group 2, and mean alar widening was 1.40 mm in group 1 and 2.31 mm in group 2. The difference was statistically significant (P < .05).
  
  
  CONCLUSIONS
  Extraoral alar base cinch suture was more effective in maintaining preoperative Alar and alar base width compared with classic intraoral nasal suture.
authors.affiliation: Division of Oral and Maxillofacial Surgery, Piracicaba Dental School, State University of Campinas, Piracicaba, Brazil. fabioritto@cirurgiamaxilofacial.com
authors.forename: Fabio G
authors.initials: FG
authors.lastname: Ritto
authors.forename: Paulo José
authors.initials: PJ
authors.lastname: Medeiros
authors.forename: Márcio
authors.initials: M
authors.lastname: de Moraes
authors.forename: Danilo Passeado Branco
authors.initials: DP
authors.lastname: Ribeiro
mesh_terms: D000293:Adolescent; D000328:Adult; D002508:Cephalometry; D015331:Cohort Studies; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla / Q000601:surgery*; D008875:Middle Aged; D055171:Nasal Cartilages / Q000601:surgery; D009666:Nose / Q000033:anatomy & histology* / Q000601:surgery; D019647:Oral Surgical Procedures / Q000379:methods; D056948:Orthognathic Surgical Procedures / Q000379:methods*; D019340:Osteotomy, Le Fort / Q000379:methods*; D013536:Suture Techniques; D016896:Treatment Outcome; D055815:Young Adult