Skip to the content

Ankle motion influences the external knee adduction moment and may predict who will respond to lateral wedge insoles?: an ancillary analysis from the SILK trial

Chapman, GJ, Parkes, MJ, Forsythe, L, Felson, DT and Jones, RK 2015, 'Ankle motion influences the external knee adduction moment and may predict who will respond to lateral wedge insoles?: an ancillary analysis from the SILK trial' , Osteoarthritis and Cartilage . (In Press)

[img] PDF - Published Version
Restricted to Repository staff only

Download (417kB) | Request a copy

Abstract

Objective: Lateral wedge insoles are a potential simple treatment for medial knee osteoarthritis (OA) patients by reducing the external knee adduction moment (EKAM). However in some patients, an increase in their EKAM is seen. Understanding the role of the ankle joint complex in the response to lateral wedge insoles is critical in understanding and potentially identifying why some patients respond differently to lateral wedge insoles. Method: Participants with medial tibiofemoral OA underwent gait analysis whilst walking in a control shoe and a lateral wedge insole. We evaluated if dynamic ankle joint complex coronal plane biomechanical measures could explain and identify those participants that increased (biomechanical nonresponder) or decreased (biomechanical responder) EKAM under lateral wedge conditions compared to the control shoe. Results: Of the 70 participants studied (43 male), 33% increased their EKAM and 67% decreased their EKAM. Overall, lateral wedge insoles shifted the centre of foot pressure laterally, increased eversion of the ankle/subtalar joint complex (STJ) and the eversion moment compared to the control condition. Ankle angle at peak EKAM and peak eversion ankle/STJ complex angle in the control condition predicted if individuals were likely to decrease EKAM under lateral wedge conditions. Conclusions: Coronal plane ankle/STJ complex biomechanical measures play a key role in reducing EKAM when wearing lateral wedge insoles. These findings may assist in the identification of those individuals that could benefit more from wearing lateral wedge insoles.

Item Type: Article
Themes: Health and Wellbeing
Schools: Schools > School of Health Sciences > Centre for Health Sciences Research
Journal or Publication Title: Osteoarthritis and Cartilage
Publisher: Elsevier
Refereed: Yes
ISSN: 1063-4584
Related URLs:
Funders: Arthritis Research UK
Depositing User: Prof Richard Jones
Date Deposited: 11 Jun 2015 13:10
Last Modified: 11 Jun 2015 13:10
URI: http://usir.salford.ac.uk/id/eprint/34928

Actions (login required)

Edit record (repository staff only) Edit record (repository staff only)

Downloads

Downloads per month over past year