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Overview
Bunions Hard Skin Even though bunions are a common foot deformity, there are misconceptions about them. Many people may unnecessarily suffer the pain of bunions for years before seeking treatment. A bunion (also referred to as hallux valgus or hallux abducto valgus) is often described as a bump on the side of the big toe. But a bunion is more than that. The visible bump actually reflects changes in the bony framework of the front part of the foot. The big toe leans toward the second toe, rather than pointing straight ahead. This throws the bones out of alignment, producing the bunion?s ?bump.? Bunions are a progressive disorder. They begin with a leaning of the big toe, gradually changing the angle of the bones over the years and slowly producing the characteristic bump, which becomes increasingly prominent. Symptoms usually appear at later stages, although some people never have symptoms.

Causes
There are many reasons why this deformity occurs such as hereditary factors. Footwear habits. Foot type. Biomechanical factors (pronation). Neuromuscular dysfunction. Ligament Dysfunction (laxity). The most common causative factor is inheriting a foot type from your family that is prone to bunions. Feet that are subjected to pronation also have a higher incidence of attaining HAV deformities. This is a problem that has many causes and more than one may be occurring at the same time.

Symptoms
The skin over your big toe may be red and tender. Wearing any type of shoe may be painful. This joint flexes with every step you take. Your big toe may angle toward your second toe, or even move all the way under it. The skin on the bottom of your foot may become thicker and painful. Pressure from your big toe may force your second toe out of alignment, sometimes overlapping your third toe. If this condition gets severe, it may be difficult to walk. Your pain may become chronic and you may develop arthritis.

Diagnosis
People with bunions may be concerned about the changing appearance of their feet, but it is usually the pain caused by the condition that leads them to consult their doctor. The doctor will evaluate any symptoms experienced and examine the affected foot for joint enlargement, tissue swelling and/or tenderness. They will also assess any risk factors for the condition and will ask about family history. An x-ray of the foot is usually recommended so that the alignment of big toe joint can be assessed. This would also allow any other conditions that may be affecting the joint, such as arthritis, to be seen.

Non Surgical Treatment
Early treatment of bunions is centered on providing symptomatic relief. Switching to a shoe with a rounder, deeper toe box and made of a softer more pliable leather will often provide immediate relief. The use of pads and cushions to reduce the pressure over the bone can also be helpful for mild bunion deformities. Functional foot orthotics, by controlling abnormal pronation, reduces the deforming forces leading to bunions in the first place. These may help reduce pain in mild bunion deformities and slow the progression of the deformity. When these conservative measures fail to provided adequate relief, surgical correction is indicated. Bunions

Surgical Treatment
When a surgeon cuts and repositions a bone, it is referred to as an osteotomy. There are two basic techniques used to perform an osteotomy to realign the first metatarsal. In some cases, the far end of the bone is cut and moved laterally (called a distal osteotomy). This effectively reduces the angle between the first and second metatarsal bones. This type of procedure usually requires one or two small incisions in the foot. Once the surgeon is satisfied with the position of the bones, the osteotomy is held in the desired position with one, or several, metal pins. Once the bone heals, the pin is removed. The metal pins are usually removed between three and six weeks following surgery. In other situations, the first metatarsal is cut at the near end of the bone (called a proximal osteotomy). This type of procedure usually requires two or three small incisions in the foot. Once the skin is opened the surgeon performs the osteotomy. The bone is then realigned and held in place with metal pins until it heals. Again, this reduces the angle between the first and second metatarsal bones. Realignment of the big toe is then done by releasing the tight structures on the lateral, or outer, side of the first MTP joint. This includes the tight joint capsule and the tendon of the adductor hallucis muscle. This muscle tends to pull the big toe inward. By releasing the tendon, the toe is no longer pulled out of alignment. The toe is realigned and the joint capsule on the side of the big toe closest to the other toe is tightened to keep the toe straight, or balanced. Once the surgeon is satisfied that the toe is straight and well balanced, the skin incisions are closed with small stitches. A bulky bandage is applied to the foot before you are returned to the recovery room.
Admin · 257 views · 0 comments
14 Jun 2015