Cuboid Syndrome
Cuboid syndrome is due to what is thought to be a subluxation of the cuboid bone. When the peroneus longus muscle muscle contracts, it tries to dorsally displace and evert the cuboid as the tendon passes under the bone. To prevent this from happening the cuboid needs to be very stable against the calcaneus. If it is not stable, then there is some amount of subluxation of the bone. This results in symptoms around the joints on the lateral side of the foot.
Treatment usually starts with some form of cuboid manipulation. Foot othotics and or strapping may be needed to improve the long term stability of the calcaneo-cuboid joint.