A bunion is a firm, painful bump that forms over a bony bulge at the base of the big toe. In most cases, the big toe joint also is enlarged and has degenerative arthritis. The toe also may be pushed toward the second toe (hallux valgus). Bunions tend to be inherited, but they also are common in the following groups. Women who wear high heels. People who wear shoes that are too narrow or too pointed. People with flatfeet. All of these situations force the big toe to drift toward the little toes, and this can cause bunions to form.
Bunions develop when excess pressure is placed on the tendons and joints of the foot. As a result, the joints can become deformed and unstable. After years of pressure, the MTP joint suffers, leading to abnormal movement and bunions. Bunions are symptomatic of poor foot development (which can be genetic), walking habits, shoes, foot type and other reasons. Women often develop bunions as a result of tight shoes that squeeze the toes together. Bunions can also result from foot injuries, congenital deformities and neuromuscular disorders. Flat foot and low arch problems are often precursors to bunions, as are problems with serious arthritis or inflammatory joint disease. An overlap of the first and second toes often causes irritation and corns and can eventually lead to bunions. Poor motion of the big toe can also be a factor.
symptoms and problems caused by bunions include pain. You may then have difficulty walking due to pain. Inflammation and swelling at the base of the toe. This sometimes becomes infected. The foot may become so wide that it can be difficult to find wide enough shoes. You may get arthritis in the big toe. The second toe can become deformed. In severe cases, the big toe can push your second toe up out of place.
Physical examination typically reveals a prominence on the inside (medial) aspect of the forefoot. This represents the bony prominence associated with the great toe joint ( the medial aspect of the first metatarsal head). The great toe is deviated to the outside (laterally) and often rotated slightly. This produces uncovering of the joint at the base of the big toe (first metatarsophalangeal joint subluxation). In mild and moderate bunions, this joint may be repositioned back to a neutral position (reduced) on physical examination. With increased deformity or arthritic changes in the first MTP joint, this joint cannot be fully reduced. Patients may also have a callus at the base of their second toe under their second metatarsal head in the sole of the forefoot. Bunions are often associated with a long second toe.
Non Surgical Treatment
Custom orthoses or over-the-counter insoles to aid big toe joint function, help control over-pronation and maintain proper alignment of the bones in the feet. Properly sized, supportive footwear that are torsionally stable (can?t be folded or twisted easily) and that feature a good ?rocker profile? (curved from the ball to tips of the toes) help to reduce stress on the joint when walking. Footwear modifications to expand the area of the shoe surrounding the bunion to relieve pressure. Physical therapy modalities include rest, icing and massage. Injections, surgery and other treatment options, please consult your medical doctor for information and/or referral to a podiatrist or other foot and ankle specialist.
Surgical techniques can now not only move the wayward bones into proper alignment but also slide the first metatarsal downwards so that its head is pushed into a normal position. In its proper position, the metatarsal bone can help prevent the over-pronation that caused the formation of the bunion. Combined with proper orthotic devices, this type of surgery has provided excellent results.