title: Effects of osteoarthritis and fatigue on proprioception of the knee joint.
abstract: OBJECTIVE
  To evaluate the impact of knee osteoarthritis (OA) and periarticular muscular fatigue on knee joint kinesthesia.
  
  
  METHODS
  Cross-sectional study.
  
  
  METHODS
  A physical medicine and rehabilitation outpatient clinic.
  
  
  METHODS
  Fifty patients with bilateral OA of the knee, and a control group of 30 age-matched healthy volunteers.
  
  
  METHODS
  Not applicable.
  
  
  METHODS
  The Kellgren-Lawrence grading system was used to determine the radiographic severity of knee OA. The Lequesne index of severity for knee osteoarthritis was used for assessment of pain, kinesthesia was measured by determining angle reposition error at the knee joint using isokinetic dynamometry, and muscle strength was measured by isokinetic dynamometry.
  
  
  RESULTS
  Reposition errors did not differ between the patient and the control groups, nor did they differ between pre- and postexercise.
  
  
  CONCLUSIONS
  Mild-to-moderate OA of the knees does not affect reposition error. Fatigue produced by mild-to-moderate exercise also has no effect on reposition error.
authors.affiliation: Department of Physical Medicine and Rehabilitation, Baskent University Faculty of Medicine, Ankara, Turkey. meral@bayramoglu.org
authors.forename: Meral
authors.initials: M
authors.lastname: Bayramoglu
authors.forename: Reyhan
authors.initials: R
authors.lastname: Toprak
authors.forename: Seyhan
authors.initials: S
authors.lastname: Sozay
mesh_terms: D016022:Case-Control Studies; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D007593:Joint Instability / Q000503:physiopathology; D007719:Knee Joint / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D018763:Muscle Fatigue / Q000502:physiology*; D053580:Muscle Strength / Q000502:physiology; D053581:Muscle Strength Dynamometer; D020370:Osteoarthritis, Knee / Q000503:physiopathology*; D011434:Proprioception / Q000502:physiology*; D012720:Severity of Illness Index