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    发布于:2016-2-20 13:11:11  访问:180 次 回复:0 篇
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    What Are The Chief Causes Of Bunions?
    Overview
    A bunion is generally considered as an enlargement of the joint (a lump of bone) at the base and side of the big toe (specifically, the first metatarsophalangeal joint). Bunions form when the toe moves out of place. As the big toe bends towards the others this lump becomes larger and the bunion can become painful, arthritis and stiffness can eventually develop. Hallux valgus or hallux abducto valgus (HAV) is the name used for the deviated position of the big toe and a bunion refers to the enlargement of the joint, most of the time the two go together and can just be referred to as 'bunions'. The word bunion is from the Latin \"bunion,\" meaning enlargement.
    Causes
    Contributing factors may include excessive foot pronation, wearing tight and pointed-toe shoes, and occasionally trauma. Joint misalignment causes osteoarthritis with cartilage erosion and exostosis formation, resulting in joint motion being limited (hallux limitus) or eliminated (hallux rigidus). In late stages, synovitis occurs, causing joint swelling. In reaction to pressure from tight shoes, an adventitious bursa can develop medial to the joint prominence, which can become painful, swollen, and inflamed.
    SymptomsThe dominant symptom of a bunion is a big bulging bump on the inside of the base of the big toe. Other symptoms include swelling, soreness and redness around the big toe joint, a tough callus at the bottom of the big toe and persistent or intermittent pain.
    Diagnosis
    When an x-ray of a bunion is taken, there is usually angulation between the first metatarsal bone and the bones of the big toe. There may also be angulation between the first and second metatarsal bones. These angular irregularities are the essence of most bunions. In general, surgery for bunions aims to correct such angular deformities.
    Non Surgical Treatment
    Most bunions can be treated without surgery. The first step for treating bunions is to ensure that your shoes fit correctly. Often good footwear is all that is needed to alleviate the problem. Shoes that are wide enough Golf Injuries to the Foot and Ankle avoid pressure on the bunion are the obvious first step. Look for shoes with wide insteps and broad toes and definitely no high heels. Sometimes, you can get your existing shoes stretched out by a shoe repairer. Seek advice from a podiatrist. Pads and toe inserts. Protective bunion pads may help to cushion the joint and reduce pain. Toe inserts are available that splint the toes straight. It may be recommended that you wear some orthotics to improve your foot position when walking. Medicines. Some people find anti-inflammatory medicines, such as ibuprofen or aspirin, or paracetamol help ease the pain of their bunions.
    Surgical Treatment
    The operation involves removing the enlarged portion of bone. Ligaments and tendons that are too tight around the joint are released. The metatarsal bone in the big toe is then cut and shifted to a normal alignment that also makes the forefoot narrower. The cut bone is held in place with a screw or wire, which is not removed unless it causes problems. The loose, stretched out joint capsule is then tightened completing the soft tissue balance required for your deformity. Both feet can be operated on at the same time, but this does further limit mobility after surgery.
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