RebecaAlmarioのブログ

Overview

The prominent bone at the side of the big toe rubs against the shoe and the skin becomes reddened. Often a sac of fluid called a bursa may develop in the tissue overlying the prominent bone. This swelling, consisting of inflamed soft tissues and underlying prominent bone is what we call a ?bunion?. If left untreated, they can be very painful.

Causes
The commonest cause of bunions is prolonged wearing of poorly designed shoes such as the narrow high heels that women wear. This is one of the reasons why bunions are much more common in women than in men. There is also a hereditary component to bunions in that many times we will see a grandmother, mother and daughter all with various stages of bunions. 38% of women in the United States wear shoes that are too small and 55% of women have some degree of bunion formation. Bunions are 9 times more common in women than they are in men.
SymptomsLook for an angular, bony bump on the side of the foot at the base of the big toe. Sometimes hardened skin or a callus covers this bump. There's often swelling, redness, unusual tenderness, or pain at the base of the big toe and in the ball of the foot. Eventually, the area becomes shiny and warm to the touch. Seek medical advice if you have persistent pain when walking normally in otherwise comfortable, flat-soled shoes, you may be developing a bunion, bursitis, or a bone spur in your foot.

Diagnosis
Clinical findings are usually specific. Acute circumferential intense pain, warmth, swelling, and redness suggest gouty arthritis (see Gout) or infectious arthritis (see Acute Infectious Arthritis), sometimes mandating examination of synovial fluid. If multiple joints are affected, gout or another systemic rheumatic disease should be considered. If clinical diagnosis of osteoarthritic synovitis is equivocal, x-rays are taken. Suggestive findings include joint space narrowing and bony spurs extending from the metatarsal head or sometimes from the base of the proximal phalanx. Periarticular erosions (Martel sign) seen on imaging studies suggest gout.

Non Surgical Treatment
Podiatrists will treat bunions conservatively, using paddings and orthotics, which are devices that are made to protect the joint or deviate pressure away from it. Sometimes bunions will develop overlying callus or corns. These can be removed by a podiatrist, but if the area is irritated again by wearing ill-fitting footwear, the corn will grow back. Most people with this condition have flat feet, so arch supports are often recommended.


Surgical Treatment
If conservative treatment doesn't provide relief, you may need surgery. A number of surgical procedures are performed for bunions, and no particular surgery is best for every problem. Knowing what caused your bunion is essential for choosing the best procedure to ensure correction without recurrence. Most surgical procedures include rmoving the swollen tissue from around your big toe joint Straightening your big toe by removing part of the bone Permanently joining the bones of your affected joint You may be able to walk on your foot immediately after some bunion procedures. With other procedures, it may be a few weeks or longer. To prevent a recurrence, you'll need to wear proper shoes after recovery.