title: Effects of severity of osteoarthritis on the temporospatial gait parameters in patients with knee osteoarthritis.
abstract: OBJECTIVE
  The aim of this study was to investigate the differences in temporospatial parameters in according to severity of knee osteoarthritis (OA).
  
  
  METHODS
  The study included a total of 110 subjects with no orthopedic or neurologic disease that might affect gait were divided into three study and one control groups. Eighty subjects (mean age: 53.13 ± 6.78 years) were diagnosed with bilateral knee OA and divided into groups according to Kellgren-Lawrence radiologic scale: the Phase 1 group included 29 subjects, Phase 2, 28 subjects, and Phase 3, 23 subjects. The control group was composed of 30 healthy subjects (25 females, 5 males; mean age: 41.50 ± 5.79 years). Temporospatial gait data were evaluated using a gait analysis system.
  
  
  METHODS
  There were no significant differences in all temporospatial parameters between the control group and the Phase 1 and 2 OA groups (p>0.05). There was a significant decrease in cadence, gait velocity, stride length and step length (p<0.008) and a significant increase in stride time, double support time, step time, single support time and stance phase length in patients with Phase 3 knee OA compared to the other groups (p<0.008).
  
  
  CONCLUSIONS
  Changes in temporospatial parameters of patients with Phase 3 knee OA may be correlated with loss of gait stabilization and increase in risk of falling. In subjects with knee OA, gait stabilization and balance loss must be examined and evaluated in terms of risk of falling and necessary precautions must be taken.
authors: Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Hacettepe University, Ankara, Turkey. serkan.tas@hacettepe.edu.tr.
authors: Serkan
authors: S
authors: Taş
authors: Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
authors: Sinem
authors: S
authors: Güneri
authors: Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
authors: Aysun
authors: A
authors: Baki
authors: Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
authors: Tezel
authors: T
authors: Yıldırım
authors: Department of Physical Medicine and Rehabilitation, Faculty of Medicine, Hacettepe University, Ankara, Turkey.
authors: Bayram
authors: B
authors: Kaymak
authors: Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Hacettepe University, Ankara, Turkey.
authors: Zafer
authors: Z
authors: Erden
mesh_terms: D000058:Accidental Falls / Q000706:statistics & numerical data; D000328:Adult; D000367:Age Factors; D000368:Aged; D001696:Biomechanical Phenomena; D015331:Cohort Studies; D018450:Disease Progression; D005260:Female; D005684:Gait / Q000502:physiology*; D006801:Humans; D007719:Knee Joint / Q000000981:diagnostic imaging* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D020370:Osteoarthritis, Knee / Q000000981:diagnostic imaging* / Q000503:physiopathology; D011859:Radiography; D016059:Range of Motion, Articular / Q000502:physiology*; D012016:Reference Values; D018570:Risk Assessment; D012720:Severity of Illness Index; D012737:Sex Factors; D018709:Statistics, Nonparametric