Cuboid Syndrome is a disorder of the foot that is commonly badly recognised and frequently underdiagnosed. It's not very common, making up lower than 5% of foot conditions. In this problem the cuboid bone is suspected to become slightly dislocated from too much traction from peroneus longus tendon which passes under the bone. When a foot is overpronated the assumption is that the cuboid isn't a stable as a pulley when the peroneus longus muscle contracts. Because of this the lateral side of the cuboid bone is pulled dorsally and the medial part is pulled plantarly.
Cuboid Syndrome is more of an overuse type of injury, however the cuboid can also become partially dislocated as part of an immediate lateral ankle sprain.Typically, there is outside foot pain when weightbearing, typically located over the calcaneocuboid joint and cuboid-metatarsal joints. This tends to present as vague outside foot pain. Pushing the cuboid bone dorsally from beneath the foot can create the pain and typically the range of movement is restricted compared to the other side. There have been no x-ray observations regarding cuboid syndrome. There are a variety of other disorders that may mimic cuboid syndrome, for example sinus tarsi syndrome, a stress fracture and peroneal tendonitis. It is also thought to be a frequent symptom after plantar fascia surgical release for recalcitrant plantar fasciitis.
The management of cuboid syndrome starts off with exercise changes, so that activity amounts are restricted to what can be tolerated. Ice can be used to help with the early pain relief. Low dye strapping to immobilize the cuboid is also a excellent first line approach, typically this is followed with foot orthotics to help stabilize the cuboid bone. There is a distinct mobilization that is useful in cuboid syndrome to handle the subluxation, even though there is some discussion around this technique as to just what the adjustment is doing.