Clinical effects of lateral wedge arch support insoles in knee osteoarthritis: A prospective double-blind randomized study
Journal
Medicine (United States)
Journal Volume
95
Journal Issue
27
Date Issued
2016
Author(s)
Hsieh R.-L.
Abstract
We compared the short-term efficacy of rigid versus soft lateral wedge arch support (LWAS) insoles for patients with knee osteoarthritis (OA), as assessed using the International Classification of Functioning, Disability and Health (ICF) system, through a prospective, double-blind, randomized controlled trial. Participants who fulfilled the combined radiographic and clinical criteria for knee OA, as defined by the American College of Rheumatology, were randomly prescribed 1 pair of rigid or soft LWAS insoles. Body functions and structures were evaluated according to Kellgren-Lawrence scores, the Foot Posture Index, Hospital Anxiety and Depression Scale scores, the pain-pressure threshold, postural stability, dynamic balance, and fall risk; activities and participation were assessed according to 10-m fast speed walking, stair climbing and chair rising times, and Chronic Pain Grade questionnaire responses; and knee OA-related health status was evaluated using the Knee Injury and Osteoarthritis Outcome Score (KOOS). Hospital Anxiety and Depression Scale scores, the pain-pressure threshold, physical activity, balance, Chronic Pain Grade questionnaire responses, and the KOOS were recorded before treatment and at 1-, 2-, and 3-month follow-ups. We enrolled 90 participants, 70 women and 20 men, with mean ages of 60.6 ± 10.8 and 63.1 ± 10.8 years in the rigid and soft LWAS insole groups, respectively. Repeated-measures analysis of covariance revealed significant time × group effect improvements in pain (P = 0.008 for the KOOS), stair ascent time (P = 0.003), daily living function (P = 0.003 for the KOOS), sports and recreation function (P = 0.012 for the KOOS), and quality of life (P = 0.021 for the KOOS) in the soft LWAS insole group. Patients with knee OA who used soft LWAS insoles for a short term showed more significant improvement than did those who used rigid LWAS insoles in pain, physical activity, daily living function, sports and recreation function, and quality of life, which belong to the body functions and structures and the activities and participation components in the ICF scheme. ? 2016 the Author(s).
SDGs
Other Subjects
adult; aged; Article; chronic pain grade questionnaire; controlled study; double blind procedure; fall risk; female; follow up; health status; Hospital Anxiety and Depression Scale; human; Knee Injury and Osteoarthritis Outcome Score; knee osteoarthritis; lateral wedge arch support; major clinical study; male; orthopedic therapeutic device; pain assessment; patient participation; physical activity; pressure pain threshold; priority journal; prospective study; randomized controlled trial; recreation; weight bearing; comparative study; equipment design; foot orthosis; middle aged; Osteoarthritis, Knee; Double-Blind Method; Equipment Design; Female; Foot Orthoses; Humans; Male; Middle Aged; Osteoarthritis, Knee; Prospective Studies
Publisher
Lippincott Williams and Wilkins
Type
journal article