A bunion or hallux abducto valgus occurs when your big toe points toward your second toe. The big toe will touch the second or causes the second toe to overlap the big toe. This causes a boney bump to appear on the outside edge of your big toe. Bunions are more common in women and can sometimes run in families. Hallux abducto valgus can develop as a result of an inherited structural defect or stress on your foot or due to a medical condition such as arthritis. If there is an underlying structural defect in your foot this can lead to compensations causing stresses and pressures to be applied unevenly on the joints and tendons in your feet. This imbalance in pressure and stress makes your big toe joint unstable. Over time this causes the medial side of the 1st metatarsal head to develop excess bone that protrudes out beyond the normal shape of your foot. The size of the bunion can get larger over time which causes further crowding your other toes and causing pain. Pain from a bunion can be severe enough to keep you from walking comfortably in normal shoes. The condition may become painful as the bump gets worse, and extra bone and a fluid-filled sac (bursa) grow at the base of the big toe. By pushing your big toe inward, a bunion can squeeze your other toes into abnormal positions. This crowding can cause the four smaller toes to become bent or a claw-like in shape. These bent toes are known as hammertoes. Smaller bunions called ?bunionettes? can also develop on the joint of your 5th toe.
With prolonged wearing of constraining footwear your toes will adapt to the new position and lead to the deformity we know as a foot bunion. Footwear is not the only cause of a bunion. Injuries to the foot can also be a factor in developing a bunion. Poor foot arch control leading to flat feet or foot overpronation does make you biomechanically susceptible to foot bunions. A family history of bunions also increases your likelihood of developing bunions. Many people who have a bunion have a combination of factors that makes them susceptible to having this condition. For example, if you are a women over the age of forty with a family history of bunions, and often wear high-heeled shoes, you would be considered highly likely to develop a bunion.
The major symptom of bunions is a hard bump on the outside edge of the foot or at the base of the big toe. Redness, pain and swelling surrounding or at the MTP joint can also occur.
Looking at the problem area on the foot is the best way to discover a bunion. If it has the shape characteristic of a bunion, this is the first hint of a problem. The doctor may also look at the shape of your leg, ankle, and foot while you are standing, and check the range of motion of your toe and joints by asking you to move your toes in different directions A closer examination with weight-bearing X-rays helps your doctor examine the actual bone structure at the joint and see how severe the problem is. A doctor may ask about the types of shoes you wear, sports or activities (e.g., ballet) you participate in, and whether or not you have had a recent injury. This information will help determine your treatment.
Non Surgical Treatment
Non-surgical treatments for bunions may include wearing shoes that fit and that have adequate toe room. Stretching shoes professionally to make them larger. Putting bunion pads over the bunion to cushion the pain. Avoiding activities that cause pain, such as being on your feet for long periods of time. Taking over-the-counter pain relievers when necessary, such as acetaminophen or nonsteroidal anti-inflammatory drugs (NSAIDS) like ibuprofen. Using ice to provide relief from inflammation and pain. Using custom-made orthotic devices.
The type of surgical procedure performed depends upon the severity of the bunion, the individual?s age, general health, activity level, and the condition of the bones and connective tissue. Other factors may influence the choice of a procedure used. Mild bunion. For this type of surgery, the surgeon may remove the enlarged portion of bone and realign the muscles, tendons, and ligaments surrounding the joint. Moderate bunion. For a moderate bunion, the surgeon may cut the bone and shift it to its proper position. Whether or not the bone is cut depends on the severity and location of the deformity. In addition, the surrounding tendons and ligaments may need to be repositioned. Severe bunion. For a severe bunion, surgery may involve removing the enlarged portion of the bone, cutting and realigning the bone, and correcting the position of the tendons and ligaments. Arthritic bunion or big toe joint. If the joint is damaged beyond repair, as is commonly seen in arthritis, it may need to be reconstructed or replaced with an artificial joint. Joint replacement implants may be used in the reconstruction of the big toe joint.