Overview
Bunions are common but they can be misdiagnosed. We sometimes assume that any lump at the bottom of the big toe is a bunion. But as the Latin name (hallux valgus) suggests, the hallmark of a bunion is what happens to the toe itself (the hallux) rather than to the joint at its base. In bunions, the toe veers off in a valgus direction, that is, away from the midline. An outcrop of extra bone, or osteophyte, develops as the body tries to protect the exposed surface of the warped first metatarsophalangeal joint (MTP); a fluid-filled sac, or bursa, may also form, which often becomes inflamed. Foot experts are still not entirely agreed about what causes bunions. Genetics and lax ligaments are both implicated; the role of footwear is less clear. All bunion conversations seem to involve someone stating that barefoot tribes people don?t get bunions. This is not true. Causes Causes of bunions and risk factors for bunions include a family tendency to bunions may make them more likely to develop. Arthritis of the foot, if it affects walking, it can make bunions more likely to develop. Neuromuscular problems, such as cerebral palsy. Biomechanical factors, such as low arches, flat feet and hypermobile joints, can increase the risk. Wearing shoes that are too tight, too narrow and with pointed toes will exacerbate symptoms if bunions are present. Wearing high heels will also exacerbate existing bunions. Women are more prone to bunions than men. Symptoms Movement of the big toe towards the smaller toes. Bulging bump on the outside of the base of the big toe. Restricted movement of the big toe. Swelling, inflammation, redness or soreness around your big toe joint. Persistent or sporadic dull, sharp or aching pain in or around the big toe. Corns, blisters and calluses which can develop when the first and second toes overlap. Over time, more severe symptoms can occur such as arthritis of the big toe, stress fractures and problems walking. Diagnosis Diagnosis begins with a careful history and physical examination by your doctor. This will usually include a discussion about shoe wear and the importance of shoes in the development and treatment of the condition. X-rays will probably be suggested. This allows your doctor to measure several important angles made by the bones of the feet to help determine the appropriate treatment. Non Surgical Treatment Podiatrists will treat bunions conservatively, using paddings and orthotics, which are devices that are made to protect the joint or deviate pressure away from it. Sometimes bunions will develop overlying callus or corns. These can be removed by a podiatrist, but if the area is irritated again by wearing ill-fitting footwear, the corn will grow back. Most people with this condition have flat feet, so arch supports are often recommended. Surgical Treatment Procedures are designed and chosen to correct a variety of pathologies that may be associated with the bunion. For instance, procedures may address some combination of removing the abnormal bony enlargement of the first metatarsal, realigning the first metatarsal bone relative to the adjacent metatarsal bone, straightening the great toe relative to the first metatarsal and adjacent toes, realigning the cartilagenous surfaces of the great toe joint, addressing arthritic changes associated with the great toe joint, repositioning the sesamoid bones beneath the first metatarsal bone, shortening, lengthening, raising, or lowering the first metatarsal bone, and correcting any abnormal bowing or misalignment within the great toe. Connecting two parallel long bones side by side by Syndesmosis Procedure. At present there are many different bunion surgeries for different effects. The age, health, lifestyle and activity level of the patient may also play a role in the choice of procedure. Traditional bunion surgery can be performed under local, spinal or general anesthetic. In the case of laser surgery, a narcotic analgesic is typically used.[5] The trend has moved strongly toward using the less invasive local anesthesia over the years. A patient can expect a 6- to 8-week recovery period during which crutches are usually required for aid in mobility. An orthopedic cast is much less common today as newer, more stable procedures and better forms of fixation (stabilizing the bone with screws and other hardware) are used. Hardware may even include absorbable pins that perform their function and are then broken down by the body over the course of months. Prevention 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. |