A bunion, also known by its medical name hallux abductovalgus, is foot condition in which your big toe points toward your second toe, causing a bump or prominence to develop on the inside edge of your big toe and first metatarsal bone. Your first metatarsal bone is the long bone located directly behind your big toe, in your mid-foot. A bunion will cause your forefoot to appear wider because the base of your big toe now points away from your foot instead of pointing straight ahead.
There are many reasons why this deformity occurs such as hereditary factors. Footwear habits. Foot type. Biomechanical factors (pronation). Neuromuscular dysfunction. Ligament Dysfunction (laxity). The most common causative factor is inheriting a foot type from your family that is prone to bunions. Feet that are subjected to pronation also have a higher incidence of attaining HAV deformities. This is a problem that has many causes and more than one may be occurring at the same time.
With the positional change of the hallux, pain is a common occurrence. As the foot goes through the gait cycle the hallux plays an integral role as the body's weight transmits through during propulsion. With this in mind, it easy to see how the change in the hallux joints (metatarsal phalangeal joint and the proximal interphalangeal) would cause joint narrowing and early degeneration of the articular cartilage. In addition, two small bones (ossicles) found underneath just behind the joint will start placing extra pressure on the metatarsal. Along with bony changes, there are many soft tissue changes as the hallux and metatarsal reposition, which causes added strain to other bony structures and can accelerate the problem.
X-rays are the best way to determine the amount of deformity of the MTP joint. Blood work may be required to rule out other diseases that may be associated with bunions such as rheumatoid arthritis. Other tests such as bone scans or MRI's are not usually required.
Non Surgical Treatment
Follow the advice given by a Podiatrist. Use felt pads to help keep pressure off the painful area of the bunions. Wear shoes that are wide and deep to accomodate the bunions. Fitting of footwear is very important. Avoid the use of high heel shoes. Use exercises to keep the joint mobile. Night splints may help with the bunion symptoms. The aim of these are to hold the toe in a more correct position. Padding or foam between the big toe and the second toe is sometimes recommended, it should, generally, not be recommended as the big toe is usually so strong it just further 'squeezes' the lesser toes and can lead to problems between these toes. The padding between the two toes will not straighten the big toe. However, sometimes the padding may be needed to help with symptoms that originate inside the joint if the bunion is painful.
Surgery isn't recommended unless a bunion causes you frequent pain or interferes with your daily activities. If conservative treatment doesn't provide relief from your symptoms, you may need surgery. There are many different types of surgical procedures for bunions, and no particular bunion procedure is best for every problem. If the bunion gets worse and more painful, surgery to realign the toe and remove the bony bump (bunionectomy) can be effective. Most surgical procedures include a bunionectomy, which involves. Removing the swollen tissue from around your big toe joint. Straightening your big toe by removing part of the bone. Realignment of the 1st metatarsal bone to straighten out the abnormal angle in your big toe joint. Permanently joining the bones the 1st metatarsophalangeal joint. It's possible you may be able to walk on your foot immediately after a bunion procedure. However, full recovery can take up to eight weeks or longer with some bunion procedures. To prevent a recurrence, you'll need to wear proper shoes and a foot orthotic after recovery. No surgical procedure is without risk and you may still have pain or you could develop a new bunion in your big toe joint after surgery.
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.