Hammer Toe

Overview
If the joint on one of your toes, usually the toe next to the big toe or the smallest toe, points upward rather than lying flat, you might have a Hammertoe. The condition is actually a deformity that happens when one of the toe muscles becomes weak and puts pressure on the toe?s tendons and joints. This pressure forces the toe to become misshapen and stick up at the joint. Also, there?s frequently a corn or callus on top of the deformed toe. This outgrowth can cause pain when it rubs against the shoe.

Causes
Hammer toe is often caused by wearing shoes that do not fit properly. If shoes are too small either in length or width, then the toes are held in a shortened position for long periods and the muscles eventually shorten and pull the toes into the bent position. Alternatively it can be caused by overactivity in the extensor digitorum dongus muscle (right) and a weakness in the counteracting muscle under the foot, such as flexor digitorum longus. Sometimes it can be a congenital condition, meaning it is present from birth. It is also more common in those with arthritis in the foot or diabetes.

Symptoms
If you have any of these symptoms, do not assume it is due to hammer toe. Talk to your doctor about symptoms such as a toe that curls down, corns on the top of a toe, calluses on the sole of the foot or bottom of the toe, pain in the middle joint of a toe, discomfort on the top of a toe, difficulty finding any shoes that fit comfortably, cramping in a toe, and sometimes also the foot and leg, difficult or painful motion of a toe joint, pain in the ball of the foot or at the base of a toe.

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
If your hammertoe problem is diagnosed as flexible hammertoe, there are a number of nonsurgical treatments that may be able to straighten out your toe or toes and return them to their proper alignment. Padding and Taping. Your physician may pad the boney top-part of your hammertoe as a means of relieving pain, and may tape your toes as a way to change their position, correct the muscle imbalance and relieve the pressure that led to the hammertoe's development. Medication. Anti-inflammatory drugs such as aspirin and ibuprofen can help deal with inflammation, swelling and pain caused by your hammertoe. Cortisone injections may be prescribed for the same purpose. If your hammertoe is a consequence of arthritis, your physician may prescribe medications for that.

Surgical Treatment
Surgery is the approach that is often necessary to correct hammertoe that fails to respond to nonsurgical management. Surgery is appropriate when the muscles and tendons involved in a hammertoe problem have become so tight that the joints are rigid, misaligned and unmovable. There are a number of surgical techniques for dealing with the complex range of joint, bone, muscle, tendon and ligament abnormalities that define each hammertoe's make-up. To correct a hammertoe deformity, the surgeon's goal is to restore the normal alignment of the toe joint, relieving the pressure that led to the hammertoe's development (this should also relieve the pain, as well). To do this, he or she may remove part of the boney structure that creates a prominence at the top of the joint. Tighten or loosen the muscles, tendons and ligaments around the toe joints. Realign the toe bones by cutting one or more and shifting their position, realigning muscles, tendons and ligaments accordingly. Use screws, wires or plates to hold the joint surfaces together until they heal. Reconstruct a badly damaged joint or replace it with an artificial implant.