This perennial issue has come up again with the publication of another study. I have done a previous rant elsewhere on this issue: The Redundancy of Research on Custom Made vs Prefabricated Foot Orthotics . The alleged evidence to date from most studies so far is that there are no difference in outcomes between custom made and prefabricated foot orthotics, but both are better than a placebo (ie they work )
Read the rest here:
Prefabricated vs Custom Made Orthotics for Plantar Fasciitis