Le 9 juillet 2016, 09:04 dans Humeurs • 0
A bunion is one problem that can develop due to hallux valgus, a foot deformity. The term ?hallux valgus? is Latin and means a turning outward (valgus) of the big toe (hallux). The bone which joins the big toe, the first metatarsal, becomes prominent on the inner border of the foot. This bump is the bunion and is made up of bone and soft tissue.
It is thought that the primary cause of bunions is a mechanical instability in the big toe joint. There are a number of different reasons as to why this may happen. Bunions tend to run in families so a person with a family history of bunions has an increased risk of developing them. Factors that are known to increase the risk of bunions include wearing improperly fitting shoes (particularly narrow and/or high-heeled shoes). Certain arthritic conditions and ligament disorders. Age (the incidence of bunions increases with age). Being flatfooted with feet that roll inwards (over pronation). Past injury (trauma) to the foot. Nerve conditions affecting the foot. Bunions most commonly affect women (approximately 90% of cases) and are less common in people who do not regularly wear shoes.
The most common symptoms associated with this condition are pain on the side of the foot. Shoes will typically aggravate bunions. Stiff leather shoes or shoes with a tapered toe box are the prime offenders. This is why bunion pain is most common in women whose shoes have a pointed toe box. The bunion site will often be slightly swollen and red from the constant rubbing and irritation of a shoe. Occasionally, corns can develop between the 1st and 2nd toe from the pressure the toes rubbing against each other. On rare occasions, the joint itself can be acutely inflamed from the development of a sac of fluid over the bunion called a bursa. This is designed to protect and cushion the bone. However, it can become acutely inflamed, a condition referred to as bursitis.
Before examining your foot, the doctor will ask you about the types of shoes you wear and how often you wear them. He or she also will ask if anyone else in your family has had bunions or if you have had any previous injury to the foot. In most cases, your doctor can diagnose a bunion just by examining your foot. During this exam, you will be asked to move your big toe up and down to see if you can move it as much as you should be able to. The doctor also will look for signs of redness and swelling and ask if the area is painful. Your doctor may want to order X-rays of the foot to check for other causes of pain, to determine whether there is significant arthritis and to see if the bones are aligned properly.
Non Surgical Treatment
Sometimes observation of the bunion is all that?s needed. To reduce the chance of damage to the joint, periodic evaluation and x-rays by your surgeon are advised. In many other cases, however, some type of treatment is needed. Early treatments are aimed at easing the pain of bunions, but they won?t reverse the deformity itself. These include changes in shoewear. Wearing the right kind of shoes is very important. Choose shoes that have a wide toe box and forgo those with pointed toes or high heels which may aggravate the condition. Padding. Pads placed over the area of the bunion can help minimize pain. These can be obtained from your surgeon or purchased at a drug store. Activity modifications. Avoid activity that causes bunion pain, including standing for long periods of time. Medications. Oral nonsteroidal anti-inflammatory drugs (NSAIDs), such as ibuprofen, may be recommended to reduce pain and inflammation. Icing. Applying an ice pack several times a day helps reduce inflammation and pain. Injection therapy. Although rarely used in bunion treatment, injections of corticosteroids may be useful in treating the inflamed bursa (fluid-filled sac located around a joint) sometimes seen with bunions. Orthotic devices. In some cases, custom orthotic devices may be provided by the foot and ankle surgeon.
Bunion surgery involves realigning the joint into a better position. The procedure is usually performed under a general anaesthetic so the patient is not awake during the operation. A bunion causes a prominent bone over the inside of the joint between the foot and the big toe known as the 1st metatarso-phalangeal joint. It gives the appearance of the big toe pointing in towards the others. Surgery is a last resort treatment option in severe cases where walking or wearing shoes is painful.
Bunions often become painful if they are allowed to progress. But not all bunions progress. Many bunion problems can be managed without surgery. In general, bunions that are not painful do not need surgical correction. For this reason, orthopaedic surgeons do not recommend "preventive" surgery for bunions that do not hurt; with proper preventive care, they may never become a problem.