Bunion is the common term for a medical condition known as Hallux Valgus. Hallux Valgus is the tilting of the toe away from the mid-line of the body. It is usually characterized by a lump or bump that is red, swollen and/or painful on the inside of the foot in and around the big toe joint.
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 symptoms of bunions include irritated skin around the bunion, pain when walking, joint redness and pain, and possible shift of the big toe toward the other toes. Blisters may form more easily around the site of the bunion as well. Having bunions can also make it more difficult to find shoes that fit properly; bunions may force a person to have to buy a larger size shoe to accommodate the width the bunion creates. When bunion deformity becomes severe enough, the foot can hurt in different places even without the constriction of shoes because it then becomes a mechanical function problem of the forefoot.
The doctor considers a bunion as a possible diagnosis when noting the symptoms described above. The anatomy of the foot, including joint and foot function, is assessed during the examination. Radiographs (X-ray films) of the foot can be helpful to determine the integrity of the joints of the foot and to screen for underlying conditions, such as arthritis or gout. X-ray films are an excellent method of calculating the alignment of the toes when taken in a standing position.
Non Surgical Treatment
Treatment for bunions ranges from non-surgical to surgical. Conservative, non-surgical treatments are aimed to help alleviate some of the discomfort and pain from the bunion, they will not fix the problem. Some of the recommendations would be shoe modification to make room for the bunion, wearing wide toed shoes, or adding padding and cushioning to your shoes.
Surgery can be a very successful treatment for bunions and could be considered if you are having pain that is affecting your function on a regular basis, for instance, pain during sports or wearing work shoes. It is important, however, that you are seen by a consultant orthopaedic foot and ankle surgeon who has undergone specialist training with a foot and ankle fellowship. There are many different surgical techniques and it is important that your surgeon is expert in several of these so that you have the one that is best for your unique deformity. Bunion removal is usually done under general anesthesia. This means you will be asleep throughout the procedure. The operation can be performed as a day-case, but an overnight stay in hospital is sometimes required. Your surgeon will explain the benefits and risks of having bunion surgery, and will also discuss the alternatives treatments.