A bunion (Hallux Abducto Valgus) is sometimes described as a bump on the side of the big toe. However, the visible bump actually reflects changes in the bony framework in the front part of the foot. Instead of pointing straight ahead, the big toe leans towards the second toe, throwing the bones out of alignment and producing the ?bump? of the bunion. Bunions are a progressive disorder and gradually change the angle of the bones in your foot over the years. Symptoms usually occur in the later stages. The skin over the base of your big toe may become red and tender, and make wearing shoes painful. The bigger the bunion gets, the more it hurts to walk. Pressure from your big toe can force your second toe out of alignment, sometimes overlapping your third toe. Severe bunions can make it difficult to walk and you may develop arthritis. 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
Symptoms 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
Your family doctor or chiropodist /podiatrist can identify a bunion simply by examining your foot. During the exam, your big toe will be moved up and down to determine if your range of motion is limited. You will be examined for signs of redness or swelling and be questioned about your history of pain. A foot x-ray can show an abnormal angle between the big toe and the foot. In some cases, arthritis may also be seen. A X-ray of your foot may help identify the cause of the bunion and rate its severity.
Non Surgical Treatment
Patients should immediately cease using improperly fitted shoes. Footwear selection should have a wide and roomy toebox to accommodate the full width of the foot. If the problem is the over-pronation, the patient should be fitted with orthotics and can expect a slow recovery from pain over a period of months. Orthotics will not cause the physical deformity to regress, but will simply arrest any further progression and likely stop the pain. It is important to note however, that when bunions are severe and require surgery, the bunion can be corrected, but will develop again unless the root cause of over-pronation is corrected. If over-pronation is the root cause, orthotics will still be necessary.
Surgical Treatment
There are a number of different surgical procedures used to treat bunions. The type of surgery recommended for you will depend on the severity of the deformity. Your surgeon may use pins, wires or screws to hold the bones in place while they heal. Depending on the type of surgery you have, these may be left in your foot or removed later on. Some of the surgical procedures for bunions are described below. Osteotomy is the most commonly used and proven type of bunion surgery. Although there are many different types of osteotomy, they generally involve cutting and removing part of the bone in your toe. During the procedure, your surgeon will remove the bony lump and realign the bones inside your big toe. They'll also move your toe joint back in line, which may involve removing other pieces of bone, possibly from the neighbouring toes. A procedure called distal soft tissue realignment may be combined with an osteotomy. This involves altering the tissue in your foot to help correct the deformity and improve the stability and appearance of the foot.
Prevention
The best protection against developing bunions is to protect and care for your feet every day. Avoid tight and narrow-fitting shoes. Limit your use of high heels. Wear comfortable shoes with adequate space between your longest toe and the end of the shoe. Getting treatment for very flat or very high-arched feet (if you are experiencing symptoms) will give your feet the proper support and help maintain stability and balance.