What is Morton’s Neuroma

Morton’s Neuroma is a compressive neuropathy of the interdigital nerve in the forefoot due to compression and constant irritation of the plantar ligamentous complex It is a painful condition that affects the foot, typically between the third and fourth toes. It involves the thickening of tissue around one of the interdigital nerves leading to the toes. This thickening can cause inflammation, pain, and discomfort in the ball of the foot.

Causes:

The exact cause of Morton’s Neuroma is not always clear, but factors that may contribute to the condition include:

  • Repetitive pressure or irritation: Tight shoes, high heels, barefoot ambulation or prolonged periods of walking or running. Other causes include forefoot trauma  and metatarsophalangeal joint pathology. 
  • Foot deformities: Conditions like flat feet, bunions, equinus contractures or hammertoes can increase the likelihood of developing Morton’s Neuroma by altering the mechanics of the foot during gait.
  • Activities that put stress on the feet: High-impact sports or long periods of standing may exacerbate the condition.

Symptoms:

  • Pain: A sharp, burning pain in the ball of the foot, often radiating into the toes.
  • Numbness or tingling: The affected toes may feel numb especially when walking or standing for extended periods.
  • Feeling of a lump: Some people report feeling a sensation of a small stone or “lump” in their shoe, which can be uncomfortable.

Diagnosis:

A healthcare provider will perform a physical exam and may use diagnostic imaging like an X-ray or MRI to rule out other conditions, such as stress fractures or arthritis. Sometimes, ultrasound can be used to visualize the thickened nerve.

Treatment:

Treatment options for Morton’s Neuroma vary depending on the severity of the condition. They can include:

  1. Conservative treatments:
    1. Footwear modifications: Wearing shoes with a wider toe box, cushioned insoles, or custom orthotics to reduce pressure on the affected area.
    1. Rest and ice: Resting the foot and applying ice to reduce inflammation and pain.
    1. Pain medications: Over-the-counter pain relievers like ibuprofen may help reduce pain and swelling.
    1. Physical therapy: Stretching exercises and massage can help relieve pressure on the nerve.
    1. Corticosteroid injections: To reduce inflammation and pain.
  2. Advanced treatments:
    1. Alcohol sclerosing injections: In some cases, an injection of alcohol may be used to shrink the thickened tissue and provide relief.
    1. Surgical options: If conservative treatments fail, surgery to remove the affected nerve or release pressure on the nerve might be necessary.

Prevention:

To prevent Morton’s Neuroma:

  • Wear well-fitting supportive shoes with ample toe room and cushioning.
  • Avoid wearing high heels for prolonged periods.
  • Incorporate foot stretches and exercises to strengthen the muscles and reduce pressure on the toes.

If you think you might have Morton’s Neuroma, seeing a healthcare provider for a thorough evaluation and personalized treatment plan is important.