In constrictive shoes, the big toe is forced to bend toward the second toe and the first joint of the big toe is moved out of place. To compensate for the realignment, the outside of the joint is increased in size. Tendons then begin to pull the toe into an abnormal position. Over time the change in position becomes painful and permanent. The change in position also causes the mechanics of the toes and foot to be affected. The joint at the base of the big toe carries a lot of weight when walking or running. In a normally shaped foot the position of the big toe helps create a wide base of support and stability. A foot that has had the big toe bent toward the second toe will tend to roll inward. This abnormal pronation, along with the ill-fitting shoes will make the Bunion even worse. If a person has a foot anatomy that is prone to Bunions, wearing footwear with a too-narrow toe box will accelerate the development of a Bunion. Wearing footwear with a wide toe box may help prevent or at least delay the development of Bunions.
Women are particularly at risk for bunions, as high heels may help aggravate the condition. Bunions may also be caused when bursal sacs, sacs that absorb friction and lubricate the many tendons, bones muscles of the body, in the foot become inflamed or swollen. Bunions may also be prompted by the metatarsal bone, the bone that runs from the heel to the toe of the foot, with one metatarsal bone leading to each toe, of the big toe enlarging or deviating slightly to the outside of the foot.
The symptoms of a bunion include the following development of a firm bump on the outside edge of the foot, at the base of the big toe, redness, swelling, or pain at or near the MTP joint, corns or other irritations caused by the overlap of the first and second toes, restricted or painful motion of the big toe.
Your doctor will be able to diagnose a bunion by asking about your symptoms and examining your feet. You may also have blood tests to rule out any other medical conditions, such as rheumatoid arthritis or gout, although this is rare. Your doctor may refer you to a podiatrist or chiropodist (healthcare professionals who specialise in conditions that affect the feet).
Non Surgical Treatment
Long-term treatment of bunions must be directed towards re-balancing the foot, so that we no longer walk with our weight forced on to the inner border of the foot. This is accomplished by controlling and reducing pronation with the use of a high quality arch support or custom made orthotics. These devices comfortably re-balance the feet and overcome pronation. This reduces the abnormal weight forces on the big toe and its metatarsal head, allowing the feet to function normally. As a result, the deformity should not worsen, and the pain should gradually subside. If the foot is not re-balanced, the deformity and pain will become worse.
Bunion surgery is most often a day case or one night in hospital. Surgery can be done under ankle block (patient awake) or general anaesthetic. It is best to rest with the foot elevated for the first 2 weeks after surgery. The foot is bandaged and a special sandal supplied by the hospital is worn for 6 weeks. Sensible shoes are to be worn for a further 6 weeks after the bandages are removed. It will take between 3-6 months for the swelling to go down. It will take 12 months before everything completely settles. It is also important to remember that not all bunion operations are entirely successful.