Hammer Toe Fusion

Overview

Hammertoes usually start out as mild deformities and get progressively worse over time. In the earlier stages, hammertoes are flexible and the symptoms can often be managed with changes in shoe styles and foot care products. But if left untreated, hammertoes can become more rigid and painful. Corns are more likely to develop as time goes on-and corns never really go away, even after trimming. In more severe cases of hammertoes, corn lesions may evolve into severe ulcerations. These lesions frequently occur in patients who have vascular disease or are Diabetic with neuropathy. The ulcerations can extend to the bone and result in infection and possible loss of digit or amputation.

Causes

Ill-fitting shoes or a muscle imbalance are the most common causes of Hammer Toe. If there is an issue with a muscle in the second, third or fourth toes preventing them from straightening, Hammer Toe can result. If one of these toes is bent long enough in one position, the muscles tighten and cannot stretch out. Left untreated, surgery may be required. Women are especially prone to developing Hammer Toe because of their shoes. Hammer Toe results from shoes that don?t fit properly. Shoes that narrow toward the toe, pushing smaller toes into a bend position for extended periods of time. High heels that force the foot down into a narrow space, forcing the toes against the shoe, increasing the bend in the toe.

Symptoms

Pain on the bottom of your foot, especially under the ball of your foot, is one of the most common symptoms associated with hammertoes. Other common signs and symptoms of hammertoes include pain at the top of your bent toe from footwear pressure. Corns on the top of your bent toe. Redness and swelling in your affected area. Decreased joint range of motion in your affected toe 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 hammertoes 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

The most common treatment is to wear more comfortable shoes. When choosing a shoe, make sure the toe area is high and broad and has enough room for hammer toes. If there is chronic pain, surgery may be needed to correct a malalignment. Surgical treatments are aimed at loosening up the contracted toe joints to allow them to align properly. Other types of treatment are products designed to relieve hammer toes, such as hammer toe crests and hammer toe splints. These devices will help hold down the hammer toe and provide relief to the forefoot. Gel toe shields and gel toe caps can also be used. Gel toe shields and toe caps will help eliminate friction between the shoe and the toe, while providing comfort and lubrication.

Surgical Treatment

Bone-mending procedures realign the contracted toe by removing the entire deviated small joints of the toe (again, not at the ball of the foot). This allows for the buckled joint to be positioned flat and the bone ends to mend together. Often surgical hardware (fixation) is necessary to keep the bones steady during healing. Hardware options can involve a buried implant inside the toe, or a temporary wire that is removed at a later date. Medical terminology for this procedure is called a proximal interphalangeal joint arthrodesis (fusion), or a distal interphalangeal joint arthrodesis (fusion), with the former being performed in a high majority of cases.