title: Three-dimensional kinematics of the lower limbs in hip osteoarthritis during walking.
abstract: OBJECTIVE
  To describe the kinematic adaptations of all lower limb joints in hip osteoarthritis patients during walking.
  
  
  METHODS
  Patients with unilateral primary hip OA, without associated joint disorders were included. Normal subjects were included as controls. Gait analysis, using a 3-dimensional computerised gait analysis system was used to evaluate the usual spatiotemporal parameters, the peak motion of the hips, knees, and ankles during walking, and the intersegmental coordination of the lower limbs.
  
  
  RESULTS
  Eleven patients, mean age =60.5 ± 7 years and nine controls, mean age=60.3 ± 7 years, were included. The gait of hip OA patients was characterised as follows: a reduced stride length, a reduced maximal flexion and extension in the OA hip, a reduced maximal contralateral hip range of motion, an increased ipsi- and contralateral ankle dorsal flexion, a decreased ipsilateral relative temporal phase between the thighs and shanks segments and an increased ipsilateral relative phase between the shanks and foot segments.
  
  
  CONCLUSIONS
  The present results suggest that hip OA patients use shorter stride length, less contra lateral and especially ipsilateral hip motion, modify ankles motion, and have a different intra-limb coordination pattern compared to control subjects.
authors.affiliation: Department of Rheumatology, Dijon University Hospital, Faculty of Medicine, Dijon, France. paul.ornetti@chu-dijon.fr
authors.forename: Paul
authors.initials: P
authors.lastname: Ornetti
authors.forename: Davy
authors.initials: D
authors.lastname: Laroche
authors.forename: Claire
authors.initials: C
authors.lastname: Morisset
authors.forename: Jean Noel
authors.initials: JN
authors.lastname: Beis
authors.forename: Christian
authors.initials: C
authors.lastname: Tavernier
authors.forename: Jean-Francis
authors.initials: JF
authors.lastname: Maillefert
mesh_terms: D000368:Aged; D000843:Ankle Joint / Q000503:physiopathology; D001696:Biomechanical Phenomena / Q000502:physiology*; D005260:Female; D005684:Gait / Q000502:physiology*; D006621:Hip Joint / Q000503:physiopathology; D006801:Humans; D021621:Imaging, Three-Dimensional; D007719:Knee Joint / Q000503:physiopathology; D035002:Lower Extremity / Q000503:physiopathology*; D008297:Male; D008875:Middle Aged; D015207:Osteoarthritis, Hip / Q000503:physiopathology*; D016059:Range of Motion, Articular / Q000502:physiology; D016138:Walking / Q000502:physiology*