Can Slight Variations to Lateral Wedge Insoles Induce Significant Biomechanical Changes in Patients with Knee Osteoarthritis?

Lateral wedge insoles are recommended in order to minimize the impacts of osteoarthritis knee. The amount wedging required induce a biomechanical response with clinical significance is still controversial. This study aimed investigate immediate effects different amounts symptomatic medial knee OA. A 3D motion capture system and five force platforms were used acquire walking kinematic kinetic data along 10 m walkway. Each participant was tested for six lateral (0, 2, 4, 6, 8, 10°) randomized order. Thirty-eight patients recruited. application resulted an incremental reduction first peak external adduction moment under all experimental conditions comparison control condition (0° insole). significant increase (p < 0.05) observed ankle eversion at higher than 8° 6°, respectively. Slight variations insoles, greater 2°, appear changes osteoarthritis.