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.
Bunions are most often caused by an inherited faulty mechanical structure of the foot. This faulty structure causes the drifting of the great toe and the bone to become prominent on the side of the foot. The skin then gets pinches by this bony prominence and the shoe. Therefore in most cases bunions are not caused by tight shoes but are made more painful by tight shoes. End stage bunions may become painful both in and out of shoes.
SymptomsSymptoms, which occur at the site of the bunion, may include pain or soreness, inflammation and redness, a burning sensation, possible numbness. Symptoms occur most often when wearing shoes that crowd the toes, such as shoes with a tight toe box or high heels. This may explain why women are more likely to have symptoms than men. In addition, spending long periods of time on your feet can aggravate the symptoms of bunions.
A thorough medical history and physical exam by a physician is necessary for the proper diagnosis of bunions and other foot conditions. X-rays can help confirm the diagnosis by showing the bone displacement, joint swelling, and, in some cases, the overgrowth of bone that characterizes bunions. Doctors also will consider the possibility that the joint pain is caused by or complicated by Arthritis, which causes destruction of the cartilage of the joint. Gout, which causes the accumulation of uric acid crystals in the joint. Tiny fractures of a bone in the foot or stress fractures. Infection. Your doctor may order additional tests to rule out these possibilities.
Non Surgical Treatment
Patients with a painful bunion may benefit from four to six physical therapy treatments. Your therapist can offer ideas of shoes that have a wide toe box (mentioned earlier). The added space in this part of the shoe keeps the metatarsals from getting squeezed inside the shoe. A special pad can also be placed over the bunion. Foot orthotics may be issued to support the arch and hold the big toe in better alignment. These changes to your footwear may allow you to resume normal walking immediately, but you should probably cut back on more vigorous activities for several weeks to allow the inflammation and pain to subside. Treatments directed to the painful area help control pain and swelling. Examples include ultrasound, moist heat, and soft-tissue massage. Therapy sessions sometimes include iontophoresis, which uses a mild electrical current to push anti-inflammatory medicine to the sore area. This treatment is especially helpful for patients who can't tolerate injections.
Surgery should only be considered for bunions that are painful, not for correction of the cosmetic appearance! The primary indication for operative intervention should be pain that is not relieved by appropriate non-operative management. Although symptom-free bunions can slowly increase in size over time surgical treatment is not recommended unless significant pain symptoms develop. The prolonged recovery time associated with most bunion operations, combined with the potential for complications means that patients should be extremely cautious of undergoing bunion surgery for purely cosmetic reasons.
- Jun 09 Tue 2015 19:03