Cuboid Syndrome is a common cause of pain on the lateral side of the foot. It is commonly believed to be due to a subluxation of the cuboid bone that is tightly held in place by the bones around it. A manipulation is often needed to help it.

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The cuboid is a smaller cube shaped bone on the outside of the foot about the center of the foot. The bone is a little larger than a typical gaming dice. The bone takes part in 3 joints and serves as a pulley for the tendon of the peroneus longus tendon to pass under. Since this is a strong muscle it may move the cuboid bone excessively if it is not secure and strain those joints that this bone is a part of producing a problem known as cuboid syndrome. This is probably one of the more common causes of pain on the outside of the foot, particularly in athletes. The discomfort commonly starts out quite minor and is located about where the cuboid bone is on the outside of the foot. The discomfort is only to begin with present during exercise. If the activity levels are not reduced the problem will generally progress and then be present after activity as well as during. From time to time the pain does radiate down into the foot. Although this is the most common cause of pain on the lateral side of the foot, there are others like tendinopathy and nerve impingements.

The primary management of cuboid syndrome is pain alleviation. This is usually achieved with a decrease in activity levels and the using of low dye strapping to immobilise and support the area. Mobilisation and also manipulation is frequently used to fix cuboid syndrome. Over the longer term foot supports may be needed to limit the motion and keep the lateral arch of the foot. This can help make the cuboid more secure so it is an efficient lever or pulley for the tendon to function around. Generally this approach works in nearly all cases. If it doesn’t there are no surgical or more advanced methods and a further decrease in activity amounts is usually the only alternative.