title: [Nasal airway changes after maxillary advancement following Le Fort I osteotomy].
abstract: OBJECTIVE
  To assess the nasal airway changes after maxillary advancement following Le Fort I osteotomy.
  
  
  METHODS
  13 cases with class III malocclusion, aged 18-35 years old, were studied prospectively. All the patients underwent Le Fort I osteotomy and maxillary advancement. Rhinological inspectrum, acoustic rhinometry (AR) were performed before operation, 3 and 6 months after operation. The Nasal Obstruction Symptom Evaluation (NOSE) scale was also completed by 13 patients before and after operation. SPSS was used for statistical assay.
  
  
  RESULTS
  AR assessment showed that NAR was (1.189 +/- 0.38) cm H2O/L/mi, (1.081 +/- 0.43) cm H2O/L/mi and (1.111 +/- 0.40) cm H2O/L/mi before operation, 3 and 6 months after operation; NV was (14.920 +/- 1.95) ml, (16.380 +/- 4.32) ml and (15.660 +/- 4.25) ml; and MCA was (0.500 +/- 0.09) cm2, (0.570 +/- 0.15) cm2 and (0.560 +/- 0.14) cm2, respectively. However, no significant improvement was showed. For the whole cohort, significant improvement in nasal breathing was documented (by NOSE scores) at 6 months after surgery.
  
  
  CONCLUSIONS
  Le Fort I osteotomy with maxillary advancement doesn't cause bad effect on nasal airways in patients with maxillary dysplasia. And the combination of objective (AR) and subjective (NOSE scale) assessment can better evaluate of the structure and function of the nose.
authors.affiliation: Department of Otolaryngology, the 9th People's Hospital Affliated to the medical School of Shanghai Jiao Tong University, Shanghai 200011, China.
authors.forename: Zhong-Ying
authors.initials: ZY
authors.lastname: Wang
authors.forename: Pei-Hua
authors.initials: PH
authors.lastname: Wang
authors.forename: Bing
authors.initials: B
authors.lastname: Fang
authors.forename: Yi-Xin
authors.initials: YX
authors.lastname: Zhang
mesh_terms: D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla / Q000601:surgery*; D009666:Nose / Q000503:physiopathology*; D019340:Osteotomy, Le Fort / Q000379:methods*; D011184:Postoperative Period; D012119:Respiration; D055815:Young Adult