title: The degree of radiographic abnormalities and postural instability in patients with knee osteoarthritis.
abstract: OBJECTIVE
  To determine the degree of radiographic abnormalities based on Kellgren-Lawrence criteria, to determine posturography features in patients with knee OA.
  
  
  METHODS
  Ninety nine subjects were recruited by consecutive sampling at the outpatient clinic of Internal Medicine in Cipto Mangunkusumo Hospital. History taking and physical examination including rheumatology examination were conducted, followed by knee radiographic examination in weight bearing and 30 degree skyline position. A cross sectional design was performed to evaluate the variable results for degree of radiolographic abnormalites and posturography results.
  
  
  RESULTS
  The subjects were 79.8% women and 20.2% men, mostly > or = 60 year-old (78.8%), with low education 76.8%, BMI > or = 23 74.7%, mean value of active VAS was 5.4, mean value of passive VAS 2.8. Mild radiographic abnormality was found in 77.8% subjects, and the others were severe, i.e. 22.2%. There were increase in length of postural sway, increase of postural sway velocity, and increase in area of postural sway in patients with knee OA compared with normal subjects with 40-60 years old.
  
  
  CONCLUSIONS
  There is an increase in nearly all variables of posturography in patients with knee OA.
authors.affiliation: Department of Internal Medicine, University of Indonesia, Jakarta, Indonesia. tje_tar@yahoo.com
authors.forename: Tri Juli Edi
authors.initials: TJ
authors.lastname: Tarigan
authors.forename: Yoga Iwanoff
authors.initials: YI
authors.lastname: Kasjmir
authors.forename: Djumhana
authors.initials: D
authors.lastname: Atmakusuma
authors.forename: Aida
authors.initials: A
authors.lastname: Lydia
authors.forename: Jenni
authors.initials: J
authors.lastname: Bashiruddin
authors.forename: Kahar
authors.initials: K
authors.lastname: Kusumawijaya
authors.forename: Joedo
authors.initials: J
authors.lastname: Prihartono
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D018771:Arthralgia / Q000000981:diagnostic imaging / Q000473:pathology; D015992:Body Mass Index; D016022:Case-Control Studies; D003430:Cross-Sectional Studies; D005260:Female; D006305:Health Status Indicators; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging / Q000473:pathology; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000000981:diagnostic imaging* / Q000503:physiopathology*; D010147:Pain Measurement; D004856:Postural Balance; D011187:Posture; D011434:Proprioception; D011859:Radiography; D013223:Statistics as Topic