Overview
A hammertoe is a toe that's curled due to a bend in the middle joint of a toe. Mallet toe is similar, but affects the upper joint of a toe. Otherwise, any differences between Hammertoe and mallet toe are subtle. Both hammertoe and mallet toe are commonly caused by shoes that are too short or heels that are too high. Under these conditions, your toe may be forced against the front of your shoe, resulting in an unnatural bending of your toe and a hammer-like or claw-like appearance. Relieving the pain and pressure of hammertoe and mallet toe may involve changing your footwear and wearing shoe inserts. If you have a more severe case of hammertoe or mallet toe, you may need surgery to experience relief.
Causes
Risk factors for hammertoe include heredity, a second toe that is longer than the first (Morton foot), high arches or flat feet, injury in which the toe was jammed, rheumatoid arthritis, and, in diabetics, abnormal foot mechanics resulting from muscle and nerve damage. Hammertoe may be precipitated by advancing age, weakness of small muscles in the foot (foot intrinsic muscles), and the wearing of shoes that crowd the toes (too tight, too short, or with heels that are too high). The condition is more common in females than in males.
Symptoms
The most obvious sign of hammertoes are bent toes, other symptoms may include pain and stiffness during movement of the toe. Painful corns on the tops of the toe or toes from rubbing against the top of the shoe's toe box. Painful calluses on the bottoms of the toe or toes. Pain on the bottom of the ball of the foot. Redness and swelling at the joints.
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
Often padding and taping are the first steps in a treatment plan. Padding the hammer toe prominence minimizes pain and allows the patient to continue a normal, active life. Taping may change the imbalance around the toes and thus relieve the stress and pain. Anti-inflammatory drugs and cortisone injections can be prescribed to ease acute pain and inflammation caused by the joint deformity. Custom shoe inserts made by your podiatrist may be useful in controlling foot function. An orthotic device may reduce symptoms and prevent the worsening of the hammer toe deformity.
Surgical Treatment
If your toe is not bendable, your doctor may recommend surgery. The type of surgery that will be performed will depend on the severity of the condition. You should expect blood and urine studies before the procedure, as well as x-rays of your feet. Your doctor will inject either a local or regional anesthetic. If your toe has some flexibility, the doctor may be able to straighten it by simply making an incision in the toe to release or lengthen the tendon. If the toe is not flexible, your doctor will probably make the same incision to release the tendon, but he or she may also remove some pieces of the bone so that the bone can be straightened. A k-wire is placed in the toe to help hold it straight while it is healing. This is taken out after about four weeks.
Prevention
As you get older, feet get bigger. Get your feet measured every time you buy shoes. Don't go by shoe sizes. Shoe sizes vary among manufacturers; a shoe is the right size only when it fits comfortably. The ball of your foot should fit into the widest part of the shoe. A shoe should be sturdy such that it only bends in the ball of the foot, exactly where your big toes bend. Any shoe that can be bent anywhere along the sole or twisted side to side is generally too flimsy.
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