Kohlers disease is a growth problem with the navicular bone in the foot that is most common around the age of 5 years.
Most Useful Resources:
Kohlers Disease (Podiatry Arena)
Kohlers Disease (PodiaPaedia)
Kohlers Disease (Podiatry TV)
My Advice for Kohlers Disease (Running Injury Advice)
Pain on child arch ? (Podiatry Experts)
Kohlers Disease (Foot Health Forum)
Kohlers Disease (Dr the Foot Without the Dr)
Kohler’s Disease in Kids (Podiatry Ninja)