Are prefabricated foot orthoses still effective in reducing plantar pressures after 12 months of wear?

Background

Foot problems are highly prevalent in older people, and prefabricated (‘off-the-shelf’) foot orthoses are frequently prescribed in this age-group. However, such devices are susceptible to material compression and deformation, which may reduce their effectiveness over time. Therefore, the aim of this study was to investigate the difference in plantar pressures between prefabricated orthoses worn for at least 12 months to new prefabricated orthoses in older people.