Morton's Neuroma Orthotics | Orthotics for Morton's Neuroma

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Morton's Neuroma

What is Morton's Neuroma?

Morton's neuroma is an enlarged nerve that usually occurs in the third interspace, which is between the third and fourth toes. Above the nerve is a structure called the deep transverse metatarsal ligament. This ligament is very strong, holds the metatarsal bones together, and creates the ceiling of the nerve compartment. With each step, the ground pushes up on the enlarged nerve and the deep transverse metatarsal ligament pushes down. This causes compression in a confined space.

What causes Morton's Neuroma?

Anything that causes compression or irritation of the nerve can lead to the development of a neuroma. One of the most common offenders is wearing shoes that have a tapered toe box, or high-heeled shoes that cause the toes to be forced into the toe box.

People with certain foot deformities - bunions, hammertoes, flatfeet, or more flexible feet - are at higher risk for developing a neuroma. Other potential causes are activities that involve repetitive irritation to the ball of the foot, such as running or racquet sports. An injury or other type of trauma to the area may also lead to a neuroma.

How can orthotics help?

Custom-made orthotics are necessary to provide support for the arches and reduce the pronation stresses on the forefoot. Flexible orthotics which include specific support for the anterior metatarsal arch are particularly important in this condition, since they decrease the shearing stresses on the forefoot. Orthotics also assist in distributing your weight more evenly over the entire foot, relieving the pressure on the ball of the foot.