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Overview
There are two main types of Hammer Toe. Hammertoes can be flexible, which means that you can still move the toe a bit - these are easier to treat with stretching, wider shoes and in some cases, toe splints. Rigid hammertoes occur when the foot condition has persisted for so long without treatment that the tendons become too rigid to be stretched back to normal. Rigid hammertoes are more common in people with arthritis. This foot condition usually needs to be treated with surgery.

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
The symptoms of hammertoe include a curling toe, pain or discomfort in the toes and ball of the foot or the front of the leg, especially when toes are stretched downward. Thickening of the skin above or below the affected toe with the formation of corns or calluses. Difficulty finding shoes that fit well. In its early stages, hammertoe is not obvious. Frequently, hammertoe does not cause any symptoms except for the claw-like toe shape.

Diagnosis
The exam may reveal a toe in which the near bone of the toe (proximal phalanx) is angled upward and the middle bone of the toe points in the opposite direction (plantar flexed). Toes may appear crooked or rotated. The involved joint may be painful when moved, or stiff. There may be areas of thickened skin (corns or calluses) on top of or between the toes, a callus may also be observed at the tip of the affected toe beneath the toenail. An attempt to passively correct the deformity will help elucidate the best treatment option as the examiner determines whether the toe is still flexible or not. It is advisable to assess palpable pulses, since their presence is associated with a good prognosis for healing after surgery. X-rays will demonstrate the contractures of the involved joints, as well as possible arthritic changes and bone enlargements (exostoses, spurs). X-rays of the involved foot are usually performed in a weight-bearing position.

Non Surgical Treatment
People with a hammer toe benefit from wearing shoes in which the toe box is made of a flexible material and is wide enough and high enough to provide adequate room for the toes. High-heeled shoes should be avoided, because they tend to force the toes into a narrow, flat toe box. A doctor may recommend an insert (orthotic) for the shoe to help reduce friction and pressure on the hammer toe. Wearing properly fitted shoes may reduce pain and inflammation. It may also prevent ulcers from developing and help existing ulcers heal. However, the hammer toe does not disappear.

Surgical Treatment
The deformity is corrected in a variety of ways. There are actually a large number of procedures. The simplest procedure would involve a Tenotomy, the cutting of the tendon causing the deformity or a Tendon Lengthening procedure. These procedures are infrequently done, though, as the structural deformity (the arthritis and joint adaptation) is not addressed with these surgeries. Other soft-tissue procedures involve rebalancing the tendons around the joint. There are several techniques to do this, but the most common is probably the Girdlestone-Taylor procedure, which involves rerouting the tendons on the bottom of the toe up and over the toe where it sticks up, so that the tendon helps pull the toe downwards into proper alignment.

Prevention
To prevent a hammertoe, never squeeze your toes into shoes that force them to bend unnaturally. Those tendons can tighten up, and leave a permanent, claw-like bend in your toe. Always slip your feet into soft, roomy shoes that easily accommodate all of your toes. Stretching your toes can also help keep the tendons in the toes relaxed, and prevent a hammertoe. Use your hands to gently straighten and stretch your toes or try to pick up objects with your toes, grabbing something from the floor, for example. Sitting on a blanket and using your toes to grab the ends with also relax your feet.