Definition: Cuboid syndrome happens when the joint and ligaments near the cuboid bone in your foot become injured or torn. It's also known as cuboid subluxation, which means that one of the bones in a joint is moved but not fully out of place.
Function: The function of the cuboid bone is to stabilize the outer aspect of the foot.
When forces of the foot and ankle are too high from weight-bearing activities, there is excessive stress put on a small bone on the outer aspect of the mid-foot. Tearing of the connective tissue may occur causing the cuboid bone to sublux or partially move out of its normal position.
Repetitive inversion sprains may contribute to a tension in a tendon (peroneus longus) that may cause the subluxation (moving the bone out of postition).
Excessive pronation (a rolling of the ankle and arch inward) may also cause stress to the outside to the foot/cuboid.
Custom made Orthotics can be an effective method to reduce your outer foot discomfort. They are able to redistribute forces and off-load the foot in order to decrease stress to the peroneus longus tendon and the cuboid bone/lateral column. Pedorthists use interventions such as a supporting your medial/inside arch and use padding under the sore spot of the foot. Proper footwear is also pivotal to your recovery. Talk to your Pedorthist about proper footwear choices for you.
