4.5 Article

Individuals with Unilateral Mild-to-Moderate Hip Osteoarthritis Exhibit Lower Limb Kinematic Asymmetry during Walking But Not Sit-to-Stand

Journal

SYMMETRY-BASEL
Volume 13, Issue 5, Pages -

Publisher

MDPI
DOI: 10.3390/sym13050768

Keywords

biomechanics; gait; symmetry; motion analysis

Funding

  1. Griffith University Area of Strategic Investment Grant in Chronic Disease Prevention

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Asymmetry during gait is associated with the evolution of secondary osteoarthritis. Individuals with unilateral mild-to-moderate hip osteoarthritis exhibited lower limb asymmetries consistent with those reported in advanced stages of disease during walking. However, no significant asymmetries were detected within- or between-groups for sit-to-stand movements. Research suggests that consideration of the negative effects of gait asymmetry on the health of the affected joints may be important in the management of hip osteoarthritis.
Asymmetry during gait is associated with the evolution of secondary osteoarthritis. Kinematic asymmetry has been reported in advanced stages of hip osteoarthritis but has not been evaluated in earlier stages of the disease or has it been directly compared with unilateral and bilateral hip osteoarthritis. Our objective was to evaluate within-group symmetry and compare between-group asymmetry for three-dimensional pelvis, hip, knee, and ankle kinematics during walking and sit-to-stand in individuals with unilateral mild-to-moderate hip OA, bilateral mild-to-moderate hip osteoarthritis, and healthy controls. Twelve individuals with unilateral mild-to-moderate hip OA, nine individuals with bilateral mild-to-moderate symptomatic and radiographic hip OA, and 21 age-comparable healthy controls underwent three-dimensional motion analysis during walking and sit-to-stand. Pelvis and lower limb joint angles were calculated using inverse kinematics and between-limb symmetry was assessed for each group. Any resulting asymmetries (most affected minus contralateral limb) were compared between groups. Participants with unilateral hip osteoarthritis exhibited significantly less hip extension (7.90 degrees), knee flexion (4.72 degrees), and anterior pelvic tilt (3.38 degrees) on their affected limb compared with the contralateral limb during the stance phase of walking. Those with unilateral hip osteoarthritis were significantly more asymmetrical than controls for sagittal plane hip and pelvis angles. No significant asymmetries were detected within- or between-groups for sit-to-stand. Individuals with unilateral hip osteoarthritis exhibited lower limb asymmetries consistent with those reported in advanced stages of disease during walking, but not sit-to-stand. Consideration of the possible negative effects of gait asymmetry on the health of the affected and other compensating joints appears warranted in the management of hip OA.

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