What Are Hammertoes Deformity

HammertoeOverview

Hammer toes are usually not a serious condition, but can become painful as the bent joint rubs against the inside of the shoe, causing irritation, corns, or calluses on the top of the middle joint or the tip of the toe. A hammertoe may also cause occasional shooting pains throughout the toes or elsewhere in the foot. A hammertoe has a kink or contracture in its second joint--called the proximal interphalangeal joint--that causes the toe to bend upward in the middle, giving it a hammer-like appearance. The raised part of the toe often rubs on shoes, leading to the formation of corns or calluses. Usually hammertoe affects the smaller toes, causing pain and interfering with the ability to walk normally.

Causes

Shoes that narrow toward the toe may make your forefoot look smaller. But they also push the smaller toes into a flexed (bent) position. The toes rub against the shoe, leading to the formation of corns and calluses, which further aggravate the condition. A higher heel forces the foot down and squishes the toes against the shoe, increasing the pressure and the bend in the toe. Eventually, the toe muscles become unable to straighten the toe, even when there is no confining shoe.

Hammer ToeSymptoms

The symptoms of a hammer toe are usually first noticed when a corn develops on the top of the toe and becomes painful, usually when wearing tight shoes. There may be a bursa under hammertoe the corn or instead of a corn, depending on the pressure. Most of the symptoms are due to pressure from footwear on the toe. There may be a callus under the metatarsal head at the base of the toe. Initially a hammer toe is usually flexible, but when longstanding it becomes more rigid.

Diagnosis

First push up on the bottom of the metatarsal head associated with the affected toe and see if the toe straightens out. If it does, then an orthotic could correct the problem, usually with a metatarsal pad. If the toe does not straighten out when the metatarsal head is pushed up, then that indicates that contracture in the capsule and ligaments (capsule contracts because the joint was in the wrong position for too long) of the MTP joint has set in and surgery is required. Orthotics are generally required post-surgically.

Non Surgical Treatment

In the early stages, the deformities from mallet toe, claw toe and hammertoe can be corrected. But if treatment is delayed too long, permanent stiffness can ensue which can only be corrected by surgery. The most effective treatment options are good fitting footwear. Shoes with a wide toebox will be more comfortable and will reduce the tension on the muscles and friction on the toes. Avoid high heels as they push your feet forwards to the front of the shoes. This increases the pressure on the toes, forcing them to bend more than usual. Shoes should ideally be half an inch longer than your longest toe. Exercises to strengthen and stretch the muscles can be really helpful. Simple things like trying to pick marbles up with your feet or scrunching up a towel underneath your foot can work well.

Surgical Treatment

There are several surgical methods to correct a hammer toe. Your physician will decide which method will be most beneficial to you depending on the severity of your deformity, the direction the toe is deviating and the length of the affected toe. Some common surgical methods include. Arthroplasty. To promote straightening, half of the joint located directly underneath the crooked part of the toe is removed. Arthrodesis (fusion) To promote straightening, the joint directly underneath where the toe is crooked is completely removed. A wire or pin is inserted to aid healing. Tendon transfer. Performed alone or in combination with other procedures, a surgeon will take tendons from under the toe and ?re-route? them to the top of the toe to promote straightening. Basal phalangectomy. Performed to assist patients with severe stiffness, this procedure removes the base of the bone underneath the toe. Weil osteotomy. Performed to assist patients with severe stiffness, this procedure involves shortening the metatarsal bone and inserting surgical hardware to aid healing.

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