Comparison of postural control with different customized foot orthoses on isolated subtalar arthrodesis
© Ceccaldi; licensee BioMed Central Ltd. 2014
Published: 8 April 2014
Studies describe subtalar and ankle arthrodesis as a factor altering the biomechanics of the foot during walking [1–3] whereas postural control appears physiological . Furthermore, foot orthoses (FOs) are also recognized for their actions on dynamics  and balance  but not for their postural impact on an isolated subtalar arthrodesis (ISA). Previous studies have shown that depending on the type of FOs  and along the comfort felt by the subject , the variations induced by different FOs were significantly different. The aim of this study was to compare effects of different types of FOs on balance of patients with an ISA. Two subjects with ISA were volunteers for one session of three repeated measures: without FOs (Control), with Classical FOs (FOsC) and with Molded FOs (FOsM). After a clinical examination, these two types of FOs are custom-made including same posting. We compared postural variations through a force platform with shoes. Three modalities have been demanded at each measure: Normal stance, One-leg stance on the ISA (OnISA) and One-leg stance on the control foot (OnControl). Three data’s have been compared: Center of Pressure Area (CoP), CoP Movement (MoV) and Mean Velocity (Vel). The perception of comfort was evaluated by using previously established footwear comfort measures : 100mm visual analog scale (VAS).
FOs induced different effects on the balance of subjects with ISA depending on orthoses type and parameters observed. FOsM appear as clearly preferable to improve postural control on an ISA. The comfort is significantly improved by FOs and much more by FOsM. The data suggests correlations between improvement of balance and perception of comfort for patients with an ISA.
- Wu WL, et al: Lower extremity kinematics and kinetics during level walking andstair climbing in subjects with triple arthrodesis or subtalar fusion. Gait Posture. 2005, 21 (3): 263-70. 10.1016/j.gaitpost.2004.02.001.View ArticlePubMedGoogle Scholar
- Rouhani H, et al: Multi-segment foot kinematics after total ankle replacement and ankle arthrodesis during relatively long-distance gait. Gait Posture. 2012, 36 (3): 561-6. 10.1016/j.gaitpost.2012.05.010.View ArticlePubMedGoogle Scholar
- Flavin R, et al: Comparison of gait after total ankle arthroplasty and ankle arthrodesis. Foot Ankle Int. 2013, 34 (10): 1340-8. 10.1177/1071100713490675.View ArticlePubMedGoogle Scholar
- Telfer S, et al: Dose-response effects of customised foot orthoses on lower limb kinematics and kinetics in pronated foot type. J Biomech. 2013, 46 (9): 1489-95. 10.1016/j.jbiomech.2013.03.036.View ArticlePubMedGoogle Scholar
- Gross , et al: Effects of foot orthoses on balance in older adults. J Orthop Sports Phys Ther. 2012, 42 (7): 649-657. 10.2519/jospt.2012.3944.View ArticlePubMedGoogle Scholar
- McPoil TG, et al: Effect of foot orthoses contour on pain perception in individuals with patellofemoral pain. J Am Podiatr Med Assoc. 2011, 101 (1): 7-16.View ArticlePubMedGoogle Scholar
- Mills K, et al: Influence of contouring and hardness of foot orthoses on ratings of perceived comfort. Med Sci Sports Exerc. 2011, 43 (8): 1507-12. 10.1249/MSS.0b013e31820e783f.View ArticlePubMedGoogle Scholar
This article is published under license to BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.