OverviewHammertoes are another forefoot deformity that can take a walker out of their activity. A Hammer Toe generally represent a tendon imbalance in the toes caused by one of the toe tendons getting an advantage over another toe tendon. Most commonly, it is one or all of the long extensor tendons on the top of the foot that gets an advantage over one or all of the flexor tendons on the bottom of the foot, to cause the first joint in the toe to be elevated above the ground. Most shoe wearing people chronically alter the delicate balance that co-exists amongst the toe tendons whether they know it or not.
Causes
Hammer toe is often caused by wearing shoes that do not fit properly. If shoes are too small either in length or width, then the toes are held in a shortened position for long periods and the muscles eventually shorten and pull the toes into the bent position. Alternatively it can be caused by overactivity in the extensor digitorum dongus muscle (right) and a weakness in the counteracting muscle under the foot, such as flexor digitorum longus. Sometimes it can be a congenital condition, meaning it is present from birth. It is also more common in those with arthritis in the foot or diabetes.
Symptoms
Symptoms of a hammertoe are usually first noticed as a corn on the top of the toe or at the tip which produces pain with walking or wearing tight shoes. Most people feel a corn is due to a skin problem on their toes, which in fact, it is protecting the underlying bone deformity. A corn on the toe is sometimes referred to as a heloma dura or heloma durum, meaning hard corn. This is most common at the level of the affected joint due to continuous friction of the deformity against your shoes.
Diagnosis
The treatment options vary with the type and severity of each hammer toe, although identifying the deformity early in its development is important to avoid surgery. Your podiatric physician will examine and X-ray the affected area and recommend a treatment plan specific to your condition.
Non Surgical Treatment
Your doctor may prescribe some toe exercises that you can do at home to stretch and strengthen the muscles. For example, you can gently stretch the toes manually. You can use your toes to pick things up off the floor. While you watch television or read, you can put a towel flat under your feet and use your toes to crumple it. Finally, your doctor may recommend that you use commercially available straps, cushions or nonmedicated corn pads to relieve symptoms. If you have diabetes, poor circulation or a lack of feeling in your feet, talk to your doctor before attempting any self-treatment.
Surgical Treatment
For the surgical correction of a rigid hammertoe, the surgical procedure consists of removing the damaged skin where the corn is located. Then a small section of bone is removed at the level of the rigid joint. The sutures remain in place for approximately ten days. During this period of time it is important to keep the area dry. Most surgeons prefer to leave the bandage in place until the patient's follow-up visit, so there is no need for the patient to change the bandages at home. The patient is returned to a stiff-soled walking shoe in about two weeks. It is important to try and stay off the foot as much as possible during this time. Excessive swelling of the toe is the most common patient complaint. In severe cases of hammertoe deformity a pin may be required to hold the toe in place and the surgeon may elect to fuse the bones in the toe. This requires several weeks of recovery.
Prevention
Although there is little doubt shoes are responsible for causing corns, the size, shape and other characteristics of our feet are hereditary. A severe bunion may cause a hammertoe, as the great toe twists over or under the second toe, causing it to dislocate.