Patients with Morton?s neuroma present with pain in the forefoot, particularly in the ?ball? of the foot. However, not all pain in the forefoot is a Morton?s neuroma. In fact, most chronic pain in the forefoot is NOT the result of a Morton?s neuroma, but rather is from metatarsalgia - inflammation (synovitis) of the ?toe/foot? joints. The symptoms from Morton?s neuroma are due to irritation to the small digital nerves, as they pass across the sole of the foot and into the toes. Therefore, with a true Morton?s neuroma, it is not uncommon to have nerve-type symptoms, which can include numbness or a burning sensation extending into the toes. There are several interdigital nerves in the forefoot. The most common nerve to develop into a neuroma is between the 3rd and 4th toes. With a true neuroma, the pain should be isolated to just one or two toes.
The exact cause is unknown. Doctors believe the following may play a role in the development of this condition. Wearing tight shoes and high heels. Abnormal positioning of toes. Flat feet. Forefoot problems, including bunions and hammer toes. High foot arches. Morton neuroma is more common in women than in men.
Patients will complain of numbness, a ?pins and needles? type of tingling and loss of sensation in the toes. Burning pain in the ball of the foot that may radiate into the toes. The pain generally intensifies with activity or wearing shoes. Night pain is rare. There may also be numbness in the toes, or an unpleasant feeling in the toes. Runners may feel pain as they push off from the starting block. High-heeled shoes, which put the foot in a similar position to the push-off, can also aggravate the condition. Tight, narrow shoes also aggravate this condition by compressing the toe bones and pinching the nerve.
An MRI scan (magnetic resonance imaging) is used to ensure that the compression is not caused by a tumor in the foot. An MRI also determines the size of the neuroma and whether the syndrome should be treated conservatively or aggressively. If surgery is indicated, the podiatrist can determine how much of the nerve must be resected. This is important, because different surgical techniques can be used, depending on the size and the position of the neuroma. Because MRIs are expensive, some insurance companies are reluctant to pay for them. If the podiatrist believes an MRI is necessary, he or she can persuade the insurance company to pay for it by presenting data to support the recommendation.
Non Surgical Treatment
There are various options for treating the condition, depending on its severity. Self-treatment. Here are some simple steps that may improve symptoms. Wear supportive shoes with a wide toe box. Do not lace the forefoot of the shoe too tightly. Shoes with shock-absorbent soles and proper insoles are recommended. Do not wear tight or pointed toed shoes or shoes with heels more than 2 inches high. Use over-the-counter shoe pads to relieve pressure. Apply an ice pack to the affected area to reduce pain and swelling. Rest your feet and massage the painful area. There are drugs that may temporarily relieve the pain and other symptoms of Morton?s neuroma. Long-term use of these medications is not recommended. Anti-inflammatory drugs-Nonsteroidal anti-inflammatory drugs, such as ibuprofen or aspirin, may be taken orally to reduce pain and inflammation. Anti-inflammatory drugs can also be administered by direct injection into the skin. Local anesthetic. An anesthetic injection will temporarily relieve pain by numbing the affected nerve. Orthotics. These are custom-designed shoe inserts that can reduce some of the pain associated with Morton?s neuroma. Sometimes padding is placed around the toe area, and tape is applied to hold the padding in place.
The above measures are often sufficient to resolve Morton?s Neuroma. Should the condition persist or worsen despite these efforts, surgery may be recommended to remove the Neuroma. The surgery requires only a short recovery period, though permanent numbness in the affected toes can result, so such surgery is generally used as a last resort.