Cuboid Syndrome is a problem in the foot which is commonly badly recognised and frequently underdiagnosed. It's not common, making up less than 5% of foot conditions. In this disorder the cuboid bone is believed to become partially subluxed due to too much traction from peroneus longus tendon as it passes around the bone. When a foot is overpronated it is assumed that the cuboid is not a stable as a pulley when the peroneus longus muscle fires. As a result the lateral aspect of the cuboid bone is drawn dorsally and the inside aspect is pulled downwards.
This is really an overuse type of injury, however the cuboid could also become partially dislocated as part of an immediate lateral ankle sprain.Clinically, there is lateral foot pain on standing, generally situated over the calcaneocuboid joint and cuboid-metatarsal joints. This may start as vague outside foot pain. Pressing the cuboid bone dorsally from below the foot can produce the symptoms and frequently the range of motion is less compared to the opposite side. There have been no specific x-ray information regarding cuboid syndrome. There are a number of other disorders that may mimic cuboid syndrome, including sinus tarsi syndrome, a stress fracture or peroneal tendonitis. It is also considered a common symptom after plantar fascia surgical release for recalcitrant plantar fasciitis.
Dealing with cuboid syndrome starts off with activity changes, making sure that activity amounts are limited to what can be tolerated. Ice may be used to assist with the initial pain relief. Taping to immobilize the cuboid is also a excellent first line strategy, commonly this is followed with foot supports to help support the cuboid bone. There is a specific manipulation that is useful in cuboid syndrome to deal with the subluxation, though there is some debate surrounding this method as to exactly what the mobilization is affecting.