What Are Bunions?
Overview

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.
Causes
Many problems that occur in the feet are the result of abnormal pressure or rubbing. One way of understanding what happens in the foot due to abnormal pressure is to view the foot simply. Our simple model of a foot is made up of hard bone covered by soft tissue that we then put a shoe on top of. Most of the symptoms that develop over time are because the skin and soft tissue are caught between the hard bone on the inside and the hard shoe on the outside. Any prominence, or bump, in the bone will make the situation even worse over the bump. Skin responds to constant rubbing and pressure by forming a callus. The soft tissues underneath the skin respond to the constant pressure and rubbing by growing thicker. Both the thick callus and the thick soft tissues under the callus are irritated and painful. The answer to decreasing the pain is to remove the pressure. The pressure can be reduced from the outside by changing the pressure from the shoes. The pressure can be reduced from the inside by surgically removing any bony prominence.
SymptomsBunions may or may not cause symptoms. A frequent symptom is foot pain in the involved area when walking or wearing shoes that is relieved by resting. A bunion causes enlargement of the base of the big toe and is usually associated with positioning of the big toe toward the smaller toes. This leads to intermittent or chronic pain at the base of the big toe. Bunions that cause marked pain are often associated with swelling of the soft tissues, redness, and local tenderness. It is important to note that, in post-pubertal men and post-menopausal women, pain at the base of the big toe can be caused by gout and gouty arthritis that is similar to the pain caused by bunions.
Diagnosis
Before examining your foot, the doctor will ask you about the types of shoes you wear and how often you wear them. He or she also will ask if anyone else in your family has had bunions or if you have had any previous injury to the foot. In most cases, your doctor can diagnose a bunion just by examining your foot. During this exam, you will be asked to move your big toe up and down to see if you can move it as much as you should be able to. The doctor also will look for signs of redness and swelling and ask if the area is painful. Your doctor may want to order X-rays of the foot to check for other causes of pain, to determine whether there is significant arthritis and to see if the bones are aligned properly.
Non Surgical Treatment
Nonsurgical treatments that may relieve the pain and pressure of a bunion include changing shoes. Wear roomy, comfortable shoes that provide plenty of space for your toes. Padding and taping or splinting. Your doctor can help you tape and pad your foot in a normal position. This can reduce stress on the bunion and alleviate your pain. Medications. Acetaminophen (Tylenol, others), ibuprofen (Advil, Motrin IB, others) or naproxen (Aleve) can help you control the pain of a bunion. Cortisone injections also can be helpful. Shoe inserts. Padded shoe inserts can help distribute pressure evenly when you move your feet, reducing your symptoms and preventing your bunion from getting worse. Over-the-counter arch supports can provide relief for some people, although others may require prescription orthotic devices. Applying ice. Icing your bunion after you've been on your feet too long can help relieve soreness and inflammation.

Surgical Treatment
The choice of surgical procedures (bunionectomy) is based on a biomechanical and radiographic examination of the foot. Because there is actual bone displacement and joint adaptation, most successful bunionectomies require cutting and realigning the 1st metatarsal (an osteotomy). Simply "shaving the bump" is often inadequate in providing long-term relief of symptoms and in some cases can actually cause the bunion to progress faster. The most common procedure performed for the correction of bunions is the 1st metatarsal neck osteotomy, near the level of the joint. This refers to the anatomical site on the 1st metatarsal where the actual bone cut is made. Other procedures are preformed in the shaft of the metatarsal bone (see procedures preformed in the shaft of the metatarsal) and still other procedures are selected by the surgeon that are preformed in the base of the metatarsal bone (see surgeries preformed in the base of the metatarsal).
Prevention
The best way to reduce your chances of developing a bunion is to wear shoes that fit properly. Any shoe that is too tight or too high will force your toes together and may cause the condition to develop. Shoes need to be wide enough, so they aren't rubbing against the joint, and preferably made of leather. Avoid shoes with a lot elaborate stitching at the front, as this can also cause irritation. Heels should be no more than three to four inches and you should only wear them occasionally. Court shoes should seldomly be worn, as they do not give the foot any support. Be honest with yourself, you know if your shoes aren't fitting you comfortably. Do something about it, or you will suffer for your vanity.






