Volume 43 Number 4, July/August 2006
Pages 427 — 424
Abstract - Effects of footwear on medial compartment knee osteoarthritis
Meika A. Fang, MD;1-2* Connie E. Taylor, MD;1 Aksone Nouvong, DPM;1-2 Sulabha Masih, MD;1-2
Kaly C. Kao;1-2 Karen L. Perell, PhD, RKT1,3
1Department of Veterans Affairs Greater Los Angeles Healthcare System, Los Angeles, CA; 2University of California, Los Angeles, David Geffen School of Medicine, Los Angeles, CA; 3Departments of Kinesiology and Health Science, California State University, Fullerton, CA
Abstract-This pilot study investigated whether lateral-wedge insoles inserted into shock-absorbing walking shoes altered joint pain, stiffness, and physical function in patients with symptomatic medial compartment knee osteoarthritis (OA). Twenty-eight subjects wore full-length lateral-wedge insoles with an incline of 4° in their walking shoes for 4 weeks. Pain, stiffness, and functional status were measured with the Western Ontario and McMaster Universities (WOMAC) Osteoarthritis Index at baseline and 4 weeks postintervention. Significant improvements were observed in all three WOMAC subscales (pain, stiffness, and function). Pain scores were significantly reduced for the most challenging activity-stair climbing. Subjects wore insoles daily and tolerated them well. The results of this study indicated that lateral-wedge insoles inserted into shock-absorbing walking shoes are an effective treatment for medial compartment knee OA.
Key words: functional status, knee, lateral-wedge insoles, orthoses, osteoarthritis, pain, rehabilitation, shock-absorbing shoes, stair climbing, stiffness, varus.