How To Diagnose Bunions

Overview

Hallux valgus may sound like a curse from Harry Potter, but it?s the medical term for a bunion, a bony growth where the big toe joins the foot. At best a bunion is an unsightly bump which can get a bit red and sore. If it gets big enough it limits the type of shoes you can wear, and sometimes a painful sac of fluid known as a bursa develops around it. But left untreated, a bunion really can become a curse if it starts to push the big toe towards the smaller ones, causing more problems such as hammer toes, or problems in the spine and legs.

Causes
Bunions tend to run in families, but that does not mean that if you have a bunion, your children will inevitably have one too. The connection may be that bunions are a bit commoner in people with unusually flexible joints, and this can be hereditary. They are also commoner in women than in men. Bunions do occur in cultures in which shoes are not worn, but much less commonly. Shoes which squeeze the big toe or do not fit properly, or have an excessively high heel, may worsen the deformity, particularly in people who are at higher risk anyway.
SymptomsSymptoms often include pain, swelling, and abnormal position of the first toe. The technical term for bunions is ?hallux valgus? (HV). This refers to the first toe or hallux moving away or abducting from the middle of the foot and then twisting in such a way that the inside edge actually touches the ground and the outside edge turns upward. This term describes the deviation of the toe toward the outside part of the foot. If left untreated, bunions can worsen over time and cause considerable difficulty in walking, discomfort, and skin problems such as corns. In some cases, a small bursa (fluid-filled sac) near the joint becomes inflamed. This condition is known as bursitis and can cause additional redness, swelling, and pain. Less frequently, bunions occur at the base of the fifth toe. When this occurs, it is called a ?tailor?s bunion? or bunionette.

Diagnosis
People with bunions may be concerned about the changing appearance of their feet, but it is usually the pain caused by the condition that leads them to consult their doctor. The doctor will evaluate any symptoms experienced and examine the affected foot for joint enlargement, tissue swelling and/or tenderness. They will also assess any risk factors for the condition and will ask about family history. An x-ray of the foot is usually recommended so that the alignment of big toe joint can be assessed. This would also allow any other conditions that may be affecting the joint, such as arthritis, to be seen.

Non Surgical Treatment
Your podiatrist can recommend exercises, orthoses (special devices inserted into shoes), shoe alterations or night splints (which hold toes straight over night) which may slow the progression of bunions in children. According to experts, ?conservative? measures such as these may help relieve symptoms, though there is no evidence they can correct the underlying deformity. Orthoses are designed to prevent the problem getting worse by decreasing any biomechanical causes of bunions. In other words, if the biomechanical theory is correct (i.e. if your bunions are caused by the way you walk), orthoses may help you walk in a way that doesn?t exacerbate the problem. But it won?t change the already established shape of your foot. For that, you need surgery.


Surgical Treatment
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.