title: [The anatomy research of expanding vision of endoscopic maxillary sinus operation].
abstract: OBJECTIVE
  To get the anatomical method of expanding vision of endoscopic maxillary sinus operation to providing guidance for the satisfactory surgical vision by measurement of nasal cavity and maxillary sinus relative structure.
  
  
  METHODS
  By anatomical measurement from 30 human cranium preparations (21 male, 9 female), which were marinated by 10% formaldehyde solution, we tried to find out anatomical factors that influence expanding vision of endoscopic maxillary sinus operation.
  
  
  RESULTS
  Measurement of cranium preparations: respective distance between bone nasolacrimal canal anterior wall superior extremity, central extremity, bottom extremity and borderline of maxillary sinus anterior wall and medial wall were 0 mm, (1.90 +/- l.03) mm, (3.29 +/- 1.04) mm. Distance between anterior inferior part of bone nasolacrimal canal and anterior edge of inferior concha was (5.13 +/- 0.62) mm, and vertical distance between anterior inferior part of bone nasolacrimal canal and nasal bottom was (16.89 +/- 0.97) mm. The difference between right and left side had no significant statistic sense (P > 0.05). Removal of the bone area: the upper and lower diameter of part of the inferior turbinate attachment was (9.43 +/- 1.72) mm, anteroposterior diameter from top to bottom was (9.76 +/- 0.83) mm, (11.39 +/- 0.50) mm, (12.85 +/- 0.66) mm, the upper and lower diameter of the following part of the inferior turbinate attachment was (13.52 +/- 0.83) mm, anteroposterior diameter from top to bottom was (19.89 +/- 1.37) mm, (16.59 +/- 0.77) mm, (12.48 +/- 0.91) mm.
  
  
  CONCLUSIONS
  Dissection from inferior turbinate anterior part approach to maxillary sinus could expand the endoscopic operation vision.
authors.affiliation: Department of Otolaryngology-Head and Neck Surgery, the Affiliated Hospital of Qingdao University Medical Colledge, Qingdao, 266003, China.
authors.forename: Jie
authors.initials: J
authors.lastname: Liu
authors.forename: Tingting
authors.initials: T
authors.lastname: Liu
authors.forename: Niankai
authors.initials: N
authors.lastname: Zhang
mesh_terms: D004724:Endoscopy; D005260:Female; D006801:Humans; D008297:Male; D008443:Maxillary Sinus / Q000033:anatomy & histology* / Q000601:surgery; D009296:Nasal Cavity / Q000033:anatomy & histology* / Q000601:surgery; D010256:Paranasal Sinuses / Q000033:anatomy & histology / Q000601:surgery; D014785:Vision, Ocular