RoseliaThistlethwaitのブログ

Overview
Hammertoes is foot deformity that typically affects second, third or fourth toes. The condition is called hammertoe because of the unnatural position your toes form. Hammertoe causes your toe to bend upward at the middle joint in a way that looks similar to a hammer. While it may not be painful at first, this condition usually worsens with time and it becomes difficult to extend your toes. Sometimes, calluses or corns form in association with hammertoe.

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
The most common symptoms of hammertoes include. The toe is bent upward at the middle toe joint, so that the top of this joint rubs against the top of the shoe. The remainder of the toe is bent downward. Pain upon pressure at the top of the bent toe from footwear. The formation of corns on the top of the joint. Redness and swelling at the joint contracture. Restricted or painful motion of the toe joint. Pain in the ball of the foot at the base of the affected toe. This occurs because the contracted digit puts pressure on the metatarsal head creating callouse and pressure on the ball of the foot.

Diagnosis
Hammertoes are progressive, they don?t go away by themselves and usually they will get worse over time. However, not all cases are alike, some hammertoes progress more rapidly than others. Once your foot and ankle surgeon has evaluated your hammertoes, a treatment plan can be developed that is suited to your needs.

Non Surgical Treatment
Podiatric Care may include using anti-inflammatory oral medications or an injection of medication and local anesthetic to reduce this swelling. When you go to your doctor, x-rays are usually required to evaluate the structure of your foot, check for fractures and determine the cause. The podiatrist may see you to take care of any corns that develop due to the bone deformities. They may advise you on different shoewear or prescribe a custom made orthotic to try and control the foot structure. Padding techniques may be used to straighten the toe if the deformity is flexible, or pads may be used to lessen the pressure on the area of the corn or ulcer. Your podiatric physician may also recommend a surgical procedure to actually fix the structural problem of your foot.

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.

Prevention
Avoid wearing shoes that are too short or narrow. Check children's shoe sizes often, especially during periods of fast growth. If you have hammer toe, call for an appointment with your health care provider. If you develop thick blisters or corns on your toes, if your pain gets worse, if you have difficulty walking call for an appointment with your health care provider.