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Overview
A Hammer Toe is a toe that is contracted at the PIP joint (middle joint in the toe), potentially leading to severe pressure and pain. Ligaments and tendons that have tightened cause the toe's joints to curl downwards. Hammer toes may occur in any toe except the big toe. There is often discomfort at the top part of the toe due to rubbing against the shoe.

Causes
Hammer toe may also be caused by other medical conditions such as rheumatoid arthritis, osteoarthritis, or stroke because these forms of illnesses involve affectation of the person's muscles and nerves. Diabetes is also a causative factor for hammer toes due to diabetic neuropathy, which often times accompanies advanced instances of diabetes. Injury to a person's toes may also cause hammer toes, particularly if the injury involves breaking of the toes. In some instances, hammer toes may be hereditary. Some people may be genetically predisposed to develop the condition because of the natural structure of their bodies.

Symptoms
People who have painful hammertoes visit their podiatrist because their affected toe is either rubbing on the end their shoe (signaling a contracted flexor tendon), rubbing on the top of their shoe (signaling a contracted extensor tendon), or rubbing on another toe and causing a painful buildup of thick skin, known as a corn.

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
Many people start by treating the problem themselves when they have a painful corn or callus. They try to remove the corn by cutting it off or by applying strong acids, and they try to cushion the toe by applying cushioned pads. Because these treatments can be difficult to perform by oneself (and should never be done by oneself when the patient is diabetic or circulation is poor), and because these treatments only treat the symptom, not the structural deformity that causes their symptom, these treatments can often provide only limited success, and often any success is for only short periods of time. Changes in shoe choices and various types of paddings and other appliances may help, too. For longer-lasting help, we must examine the cause of the deformity. The reason for knowing the cause is that the type of treatment will vary, depending upon the cause of the complaint. Orthotics help control the causes of certain types of contracted toes, (those caused by flexor stabilization, for example), but not other types.

Surgical Treatment
The technique the surgeon applies during the surgery depends on how much flexibility the person's affected toes still retain. If some flexibility has still been preserved in their affected toes, the hammer toes might be corrected through making a small incision into the toe so the surgeon can manipulate the tendon that is forcing the person's toes into a curved position. If, however, the person's toes have become completely rigid, the surgeon might have to do more than re-aligning the person's tendons. Some pieces of bone may have to be removed so the person's toe has the ability to straighten out. If this is the case, some pins are attached onto the person's foot afterwards to fix their bones into place while the injured tissue heals. Following the surgical procedure, the person might have to deal with some stiffness and swelling as they pursue their recovery process. The person should also expect the toes that have been corrected to appear different following the surgery. For example; the person's toes may appear longer or shorter than they were before. The person will be advised not to pursue too much physical activity that involves their feet for some time to give their injury from surgery enough time to heal properly.