title: [Clinical implication of global osteitis score system and its role in evaluation of osteitis of chronic rhinosinusitis].
abstract: OBJECTIVE
  To investigate the clinical application of Global Osteitis Score System (GOSS). To determine the association between GOSS, Lund-Mackay scores and Lund-Kennedy scores and to investigate the incidence of osteitis in patients with chronic rhinosinusitis (CRS).
  
  
  METHODS
  Three hundreds and thirty-four patients with CRS were enrolled prospectively in a large tertiary referral center. The paranasal sinus bone Hounsfield unit (HU), thickness, scope were measured by PHILIPS MxLiteView software. Nasal endoscopy Lund-Kennedy score was analyzed in all patients. Sinus CT scans of all patients were analyzed for Lund-Mackay score and for osteitis using the GOSS. Association between GOSS and Lund-Mackay, Lund-Kennedy was examined.
  
  
  RESULTS
  The incidence of osteitis in patients with chronic rhinosinusitis was from 33.83% to 53.89%. Average GOSS score of osteitis was 7.51 ± 7.27. The highest incidences of osteitis were in the maxillary and anterior ethmoid sinuses. The left anterior ethmoid sinuses was 37.2%. The right anterior ethmoid sinuses was 32.8%. The left maxillary sinuses was 46.1%. The right maxillary sinuses was 42.2%. Global osteitis score were significantly correlated with Lund-Mackay and Lund-Kennedy scores (r value were 0.497 and 0.409 respectively, all P < 0.001).
  
  
  CONCLUSIONS
  GOSS can define and evaluate the extent and the severity of osteitis in patients with CRS by using CT, and can also reflect the extent and the severity of CRS.
authors.affiliation: Department of Otorhinolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Key Laboratory of Otorhinolaryngology Head and Neck Surgery, Ministry of Education (Capital Medical University), Beijing 100073, China.
authors.forename: Lei
authors.initials: L
authors.lastname: Cheng
authors.forename: Zhen-xiao
authors.initials: ZX
authors.lastname: Huang
authors.forename: Bing
authors.initials: B
authors.lastname: Zhou
authors.forename: Qian
authors.initials: Q
authors.lastname: Huang
authors.forename: Cheng-shuo
authors.initials: CS
authors.lastname: Wang
authors.forename: Shun-jiu
authors.initials: SJ
authors.lastname: Cui
authors.forename: Ting
authors.initials: T
authors.lastname: Ye
authors.forename: Yan
authors.initials: Y
authors.lastname: Sun
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002908:Chronic Disease; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010000:Osteitis / Q000000981:diagnostic imaging*; D011379:Prognosis; D011446:Prospective Studies; D012720:Severity of Illness Index; D012852:Sinusitis / Q000000981:diagnostic imaging*; D014057:Tomography, X-Ray Computed / Q000379:methods*; D055815:Young Adult