Mavroidis, Dinos, Canavan, Paul
This document reviews the design of an orthopedic shoe for the purpose of reducing ground reaction forces and internal moment of the knee. The design utilizes a dual density mid-sole and lateral flare that under heal strike to mid-stance walking positions generates a lateral wedge of 5 degrees. Studies have concluded that the use of a lateral wedge insert and a flared heel design, individually, have effectively treated varying degrees of OA patients. Designs compared include the Dual-Density mid-sole, a Multidensity mid-sole and a Lateral support plate. Numerical analysis using the Evart Motion Capture system and Biometrics Platform combined with physical testing demonstrated the reduction of ground reaction forces and internal moment. Benefits include halting progression of knee OA with out costly medical treatments and doctor visits. Prototype testing showed a 13.23% decrease in the internal knee moment, along with a 2.67% decrease in the vertical ground reaction force. This design was deemed a successful way to combat knee moments, which are linked to the progression of osteoarthritis.
orthopedic shoe, osteo-arthritis patients
Northeastern University, Department of Mechanical and Industrial Engineering
Acholonu, Lucius; Farrell, Tim; Mcafee, Steve; Van Lohuizen, Niels; and Van Tassell, David, "Lateral Osteo-Arthritis Footwear with Energy Reduction" (2007). Capstone Design Program: Mechanical Engineering. Paper 72. http://hdl.handle.net/2047/d10011493
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