About Morton's Neuroma

Overview

Morton's neuroma is a condition characterized by the inflammation and thickening of the tissues surrounding the nerves between the toes. It typically occurs between the third and fourth toes, although it can also happen between the second and third toes. The condition is often caused by wearing shoes with a pointed toe box or high heels that force the toes into a cramped position. Other contributing factors include certain foot abnormalities, running or court sports, and foot injuries.

Symptoms of Morton's neuroma may include tingling, pain, burning sensation, numbness, and a feeling of something being in the shoe or inside the ball of the foot. Treatment options can include arch support, icing the affected area, orthotic devices, avoiding activities that put pressure on the neuroma, wearing shoes with a wide toe box, nonsteroidal anti-inflammatory drugs (NSAIDs), and injections of cortisone or local anesthetics. In some severe cases, surgery might be needed if other treatments are not effective.

Causes and Risk Factors

The underlying causes of Morton's neuroma involve the compression or irritation of the nerve between the toes.

Non-modifiable risk factors for Morton's neuroma, which are factors that cannot be controlled to reduce the risk of developing the condition, include:

  • Gender: It is more common in females than males.
  • Age: The risk increases with age.

Modifiable risk factors for Morton's neuroma, which are factors that can be controlled to reduce the risk of developing the condition, include:

  • Shoe choice: Wearing shoes that are too tight or have high heels can compress the nerves in the feet and lead to Morton's neuroma.
  • Foot abnormalities: Foot or gait abnormalities, such as flat feet, high arches, bunions, or hammer toes, can put pressure on the nerves and contribute to the development of Morton's neuroma. Additionally, conditions like tarsal tunnel syndrome may also increase the risk of developing Morton's neuroma.
  • Sport: Engaging in repetitive sports activities like running or racquet sports that increase pressure on the ball of the foot can also be a cause. High-impact sports or activities that may cause injury to the foot increases the risk of this condition.

Remember, these are general risk factors and may not apply to everyone. It's always best to consult with a healthcare professional for personalized advice.

Symptoms

The most common symptoms of Morton's neuroma include:

  • Feeling like you are stepping on a marble
  • Burning pain in the ball of your foot that may radiate to the toes
  • Pain that worsens with walking or wearing shoes
  • Tingling and numbness in the toes
  • Pain that worsens after physical activity or standing for long periods

It's important to note that some individuals may have Morton's neuroma without any noticeable symptoms. In rare cases, visible signs such as a lump may occur, but this is extremely rare. If you experience any of these symptoms, it is recommended to consult with a healthcare professional for an accurate diagnosis and appropriate treatment.

Diagnosis

To diagnose Morton's neuroma, the following examinations, tests, and procedures are commonly performed:

  • Clinical history and examination: A foot specialist, such as a podiatrist or orthopedic doctor, will examine the foot and manipulate it to locate the affected nerve. They may also perform a maneuver to elicit a feeling of clicking between the toes, which is a sign of Morton's neuroma.
  • X-ray: An X-ray can rule out other foot injuries like stress fractures.
  • Ultrasound scan: This scan is relatively cheap, requires no radiation, and can identify Morton's neuroma with similar accuracy to an MRI. It can also help distinguish Morton's Neuroma from other similar conditions.
  • Magnetic resonance imaging (MRI): This scan can detect Morton's neuroma even when there are no symptoms. However, it is a more expensive imaging test than an ultrasound.
  • Appearance index: The appearance index is used to assess the outcomes of neurectomy surgery for Morton's neuroma. The bottom-of-the-foot surgical approach has shown better cosmetic results compared to the top-of-the-foot surgical approach.

It's important to consult with a healthcare professional who can evaluate your specific situation and recommend appropriate examinations or tests for an accurate diagnosis and assessment of Morton's neuroma.

Treatment Options

The goals of treatment for Morton's neuroma are to alleviate pain, reduce inflammation, and improve overall foot function. The following are the recommended treatment options and how they work to achieve these goals:

  • Medications:

Over-the-counter pain relievers and nonsteroidal anti-inflammatory drugs (NSAIDs) (such as ibuprofen) can help reduce pain and inflammation.

  • Therapies:
  • Physical therapy: Stretching exercises can help loosen tendons and ligaments, reducing pressure on the affected nerve.
  • Massaging the ball of the foot can provide relief and improve blood circulation.
  • Exercises to strengthen ankles and toes can enhance foot stability.
  • Therapeutic procedures:
  • Corticosteroid injections: These injections directly target the neuroma, reducing inflammation and providing temporary pain relief.
  • Alcohol sclerosing injections: These injections have been shown to reduce the size of the neuroma and alleviate pain.
  • In severe cases where non-surgical measures fail, surgery may be recommended. The surgery aims to remove or reposition the affected nerve or tissue in the foot.
  • Health behavior changes:
  • Wearing proper footwear with adequate arch support can help relieve pressure on the affected nerve.
  • Resting the foot and elevating it to reduce swelling can aid in the healing process.
  • Applying ice packs several times a day can help reduce inflammation.

It's important to note that treatment plans may vary depending on the severity of symptoms and individual patient needs. Consulting with a healthcare professional is essential for personalized advice.

Medication dosing may be affected by many factors. Check with your healthcare professional about dosing for your individual situation. Other side effects can occur. Check with your healthcare professional or read the information provided with your medication for additional side effect information.