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2015.06.15
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カテゴリ:カテゴリ未分類

Overview

A bunion is an abnormal, bony bump that forms on the joint at the base of your big toe. Your big toe joint becomes enlarged, forcing the toe to crowd against your other toes. This puts pressure on your big toe joint, pushing it outward beyond the normal profile of your foot, and resulting in pain. Bunions can also occur on the joint of your little toe (bunionette). Bunions can occur for a number of reasons, but a common cause is wearing shoes that fit too tightly. They can also develop as a result of inherited structural defect, injury, stress on your foot or another medical condition.

Causes
With prolonged wearing of constraining footwear your toes will adapt to the new position and lead to the deformity we know as a foot bunion. Footwear is not the only cause of a bunion. Injuries to the foot can also be a factor in developing a bunion. Poor foot arch control leading to flat feet or foot overpronation does make you biomechanically susceptible to foot bunions. A family history of bunions also increases your likelihood of developing bunions. Many people who have a bunion have a combination of factors that makes them susceptible to having this condition. For example, if you are a women over the age of forty with a family history of bunions, and often wear high-heeled shoes, you would be considered highly likely to develop a bunion.
SymptomsThe most common symptoms of foot bunions are toe Position, the toe points inwards towards the other toes in the foot into the hallux adbucto valgus position and may even cross over the next toe. Bony Lump, swelling on the outer side of the base of the toe which protrudes outwards. Redness, over the bony lump where it becomes inflamed. Hard Skin, over the bony lump known as a callus. Pain, it is often painful around the big toe, made worse by pressure on the toe and weight bearing activities. Change in Foot Shape, Your whole foot may gradually change shape for example getting wider. Stiffness, the big toe often becomes stiff and may develop arthritis. Foot bunions are more common with increasing age. They develop gradually overtime from repeated force through the big toe and left untreated, become more pronounced with worsening symptoms.

Diagnosis
Bunions are readily apparent - the prominence is visible at the base of the big toe or side of the foot. However, to fully evaluate the condition, the foot and ankle surgeon may take x-rays to determine the degree of the deformity and assess the changes that have occurred. Because bunions are progressive, they don?t go away, and will usually get worse over time. But not all cases are alike - some bunions progress more rapidly than others. Once your surgeon has evaluated your bunion, a treatment plan can be developed that is suited to your needs.

Non Surgical Treatment
Wear comfortable shoes that don't squeeze your toes together. Sandals are ideal in warm weather. Cushioning the bunion with a donut-shaped bunion pad sold at drugstores can prevent any direct rubbing against your shoes. Have your shoes stretched to give your foot more room or consider switching to footwear customized to relieve pressure on the affected area. Soak your foot in warm water to help lessen the pain after a day on your feet. Apply ice packs several times a day to reduce swelling of painful and inflamed bunions. Take aspirin or ibuprofen for the inflammation and pain, and try supplementing with anti-inflammatory herbs such as ginger and turmeric (these work more slowly than the drugs). See a podiatrist for specially fitted shoes or orthotic devices that may help. Sometimes, surgery is necessary. Seek a second opinion before scheduling any operation.


Surgical Treatment
In 2010, the National Institute for Health and Care Excellence (NICE) published guidance about a minimally invasive surgical procedure to treat bunions. The aim of the procedure is to repair the tilting of the big toe. The technique can be carried out under a local anaesthetic or a general anaesthetic, using X-rays or an endoscope for guidance. The type of endoscope used will be a long, thin, rigid tube with a light source and video camera at one end. One or more incisions will be made near the big toe so that bone-cutting instruments can be inserted. These will be used to remove the bunion and to divide one or more bones located at the front of the foot. Wires, screws or plates will be used to keep the divided bones in place. After the procedure, you may need to wear a plaster cast or dressing to keep your foot in the correct position until the bones have healed. You may be given a special surgical shoe that enables you to walk on your heel. As the procedure is relatively new, there's little in the way of reliable evidence regarding its safety or effectiveness.





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最終更新日  2015.06.15 06:51:12
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