What are the key deficiencies of knee-ankle-foot orthoses (KAFOs) in terms of comfort and compatibility, and how can advanced design techniques be applied to improving their usability by people with MS?

I have been searching since 2016. It seems as though the market for KAFO's has not progressed at all in the past decade. If we could inform all universities that offer a Biomedical field of study we need HELP! don't understand? Go to google and search for Images of KAFO's. Great for comic con, bad for humans.