Article

OBJECTIVES: To assess the differences in postural stability between patients with
knee osteoarthritis and controls without knee osteoarthritis, and to evaluate
possible relations between postural stability scores and International
Classification of Functioning, Disability and Health (ICF) components. DESIGN: An
age-matched, case-controlled trial with a cross-sectional design. SETTING: A
teaching hospital. PARTICIPANTS: Patients with knee osteoarthritis (n=73) and
age-matched controls (n=60). INTERVENTIONS: Data on patients' postural stability
and additional health-related variables were collected using various instruments.
These included the Hospital Anxiety and Depression Scale, the Multidimensional
Fatigue Inventory, the World Health Organization Quality of Life Brief Version,
the physical function test (chair-rising time), the Chinese version of the
Western Ontario and McMaster Universities Osteoarthritis Index, the Chinese
version of the Knee Injury and Osteoarthritis Outcome Score, and the Biodex
Stability System. MAIN OUTCOME MEASURES: A comparison of postural stability in
patients with knee osteoarthritis versus that of controls was performed. The
relation between postural stability scores for patients with knee osteoarthritis
and ICF components was evaluated. Pearson correlation tests were used to
determine the variables that correlated with postural stability among these
patients. RESULTS: Patients with knee osteoarthritis displayed lower overall
postural stability than controls (scores of 0.7 vs. 0.5, P=.006) and scored lower
on the environmental domain of the World Health Organization Quality of Life
Brief Version (62.2 vs 66.8, P=.014). For patients with knee osteoarthritis,
postural stability was weakly associated with the ICF components of body
functions and structures, including pain (r=.33-.34, P=.004), physical fatigue
(r=.28, P=.016), and reduced motivation (r=.30, P=.011). Weak to moderate
associations between postural stability and the ICF components of activities and
participation were found; the relevant ICF variables included reduced activity
(r=.38, P=.001), physical domain and function (r=.34-.48, P=.001 to P<.004),
activities of daily living (r=.51, P<.001), and sports and recreation (r=.35,
P=.003). A moderate association between postural stability and the ICF components
of personal and environmental factors was observed, including age (r=.52, P<.001)
and quality of life (r=0.4, P=.001). CONCLUSIONS: Patients with knee
osteoarthritis displayed lower postural stability and achieved lower scores in
the environmental domain of quality-of-life measures than did controls. The
postural stability of patients with knee osteoarthritis was weakly to moderately
associated with the following ICF components: body functions and structures,
activities and participation, and personal and environmental factors.
CI - Copyright (c) 2013 American Congress of Rehabilitation Medicine. Published by
Elsevier Inc. All rights reserved.

Langue : ANGLAIS