カテゴリ:カテゴリ未分類
Overview Hammer toes is a painful deformity wherein a toe bends unnaturally and becomes clawlike. This happens because the tendons of the toe contract abnormally, forcing the toe to bend downward and the middle joint of the toe to protrude upward. Although any toe may be affected, hammertoe usually affects the second toe. The toe assumes a clawlike position and cannot be straightened out. When someone with hammertoe wears shoes, the toe is constantly rubbed, so walking may become especially painful if a callus on the sole of the foot or a corn on the top of a toe develops. 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 obvious symptom of hammer, claw or mallet toe is the abnormal toe position. This is usually combined with pain: the abnormal foot position leads to excessive friction on the toe as it rubs against any footwear which can be extremely painful. Corns & Calluses: repeated friction can result in the formation of a foot corn or callus on top of the toes. Stiffness, the joints become increasingly stiff. In the early stages, the toes can usually be straightened out passively using your hands, but if allowed to progress, the stiffness may be permanent. 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 Treating hammertoe involves straightening the toe, making tendons in the toes flexible again, and preventing the problem from returning. Some simple treatments include Soaking your feet every day in warm water, then stretching your toes and ankles by pointing your toes. Using over-the-counter pads, cushions or straps to decrease discomfort. Splinting the toe to keep it straight and to stretch the tendons of the foot. Exercising the toes to relax the foot tendons (a session with a physical therapist may help you get started with foot exercises). One simple exercise is to place a small towel on the floor and then pick it up using only your toes. You also can grasp at carpet with your toes or curl your toes up and down repeatedly. Wearing shoes that fit properly and give toes plenty of room to stretch out. Surgical Treatment There are several surgical techniques used to treat hammertoes. When the problem is less severe, the doctor will remove a small piece of bone at the involved joint and realign the toe joint. More severe hammer toes may need more complicated surgery. お気に入りの記事を「いいね!」で応援しよう
最終更新日
2015.07.09 10:48:34
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