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Overview
Hammertoes is caused when the middle joint (PIP) bends down towards the floor (flexion). To compensate, the joints above and below (MTP, DIP) bend up (hyperextend). The result is that the middle part of the toe lifts up. Hammertoe is the most common deformity of the lesser toes (i.e. not the big toe). It tends to only affect one toe, most commonly the second.

Causes
Hammertoe commonly develops because of structural changes that take place over time in the muscles and tendons that bend the toes. People with certain medical conditions, such as diabetes, are at risk for developing hammertoe. It can be an inherited condition for some people. Other causes include trauma and wearing shoes that are too tight, narrow, or have high heels. The toe next to the big toe (second toe) is most frequently affected by hammertoe.

Symptoms
Hammer, claw, and mallet toes can cause discomfort and pain and may make it hard to walk. Shoes may rub on your toes, causing pain, blisters, calluses or corns, or sores. Sores can become infected and lead to cellulitis or osteomyelitis, especially if you have diabetes or peripheral arterial disease. If you have one of these health problems and sores develop, contact your doctor.

Diagnosis
Hammertoes are progressive, they don?t go away by themselves and usually they will get worse over time. However, not all cases are alike, some hammertoes progress more rapidly than others. Once your foot and ankle surgeon has evaluated your hammertoes, a treatment plan can be developed that is suited to your needs.

Non Surgical Treatment
Conservative treatment starts with new shoes that have soft, roomy toe boxes. Shoes should be one-half inch longer than your longest toe. (Note: For many people, the second toe is longer than the big toe.) Avoid wearing tight, narrow, high-heeled shoes. You may also be able to find a shoe with a deep toe box that accommodates the hammer toe. Or, a shoe specialist (Pedorthist) may be able to stretch the toe box so that it bulges out around the toe. Sandals may help, as long as they do not pinch or rub other areas of the foot.

Surgical Treatment
A variety of anaesthetic techniques are possible. Be sure an discuss this with your surgeon during your pre-op assessment. The type of surgery performed will depend on the problem with your toes and may involve releasing or lengthening tendons, putting joints back into place, straightening a toe and changing the shape of a bone.Your surgeon may fix the toes in place with wires or tiny screws.