title: [Draf's endonasal drainage for inflammatory frontal sinus disease].
abstract: OBJECTIVE
  To introduce endonasal drainage procedures to frontal sinus in inflammatory sinus disease and its indications, methods and efficacy.
  
  
  METHODS
  One hundred thirty two patients undergoing Draf I-III frontal sinus drainage procedures with 1-12 years follow-up were reviewed retrospectively.
  
  
  RESULTS
  Forty two patients underwent type I frontal sinusotomy, 43 type II sinusotomy and 47 type III sinusotomy. A successful result was seen in these groups, 83.4%, 83.7%, and 89.4% respectively. Best effect was gained by type III sinusotomy. There was no significant difference in efficacy between the different Draf frontal sinus drainage procedures (P > 0.05).
  
  
  CONCLUSIONS
  Endonasal microscopic-endoscopic frontal drainage treatment of refractory, polypoid and recurrent frontal sinusitis can yield successful results.
authors.affiliation: Department of Otorhinolaryngology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China. drxjyou@yahoo.com.cn
authors.forename: Xuejun
authors.initials: X
authors.lastname: You
authors.forename: Wolfgang
authors.initials: W
authors.lastname: Draf
authors.forename: Ulrike
authors.initials: U
authors.lastname: Bockmühl
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D004322:Drainage / Q000379:methods*; D004724:Endoscopy; D005260:Female; D015522:Frontal Sinusitis / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D016896:Treatment Outcome; D055815:Young Adult