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| − | Overview<br><br>A bunion is a | + | Overview<br><br>A bunion is a bone deformity caused by an enlargement of the joint at the base and side of the big toe ( metatarsophalangeal joint ). Bunions form when the toe moves out of place. The enlargement and its protuberance cause friction and pressure as they rub against footwear. The growing enlargement or protuberance then causes more irritation or inflammation. In some cases, the big toe moves toward the second toe and rotates or twists, which is known as Hallux Abducto Valgus. Bunions can also lead to other toe deformities, such as hammertoe.<br><br>Causes<br>There is no single cause of hallux valgus. It most commonly runs in families but may skip generations. High heel, pointed toe shoes are not the primary cause of the hallux valgus but they do cause it to be painful. Pressure from shoes may cause bunions, corns and calluses to develop where there is hallux valgus deformity. <br>SymptomsBunions typically start out as a mild bump or outward bending of the big toe. Bunions at this stage are usually only a concern of appearance at this stage, and at this point they often don't hurt much. Over time, the ligaments that connect the bones of the toe stretch out, and the tendons attaching to the big toe gradually pull it farther and farther towards the second toe. Sometimes patients will find their first and second toes begin to press together too much, and they'll often get a painful corn between those toes. As the bunion progresses, the big toe may begin to ride on top of the second toe, or vice versa, creating a second deformity. Others will develop bump pain at the site of the bony enlargement on the side of the foot. A painful bursa may develop at that site. This is particularly true in tight shoes. Many patients also develop a painful callus beneath the foot. Capsulitis and other types of metatarsalgia may develop in the joints beneath these calluses, particularly in the second and third metatarsophalangeal joints (the joints in the ball of the foot). Over time, with the toe held in a crooked position for enough time, arthritis develops in the big toe joint. This will usually result in decreased range of motion of that joint (a condition known as "Hallux Limitis"), which as a result, often causes the patient to changes in the way a patient walks. Often the patient walks in an "out-toed", or duck-like, fashion, which very frequently causes secondary pain in the legs, knee, hip, and low back.<br><br>Diagnosis<br>Looking at the problem area on the foot is the best way to discover a bunion. If it has the shape characteristic of a bunion, this is the first hint of a problem. The doctor may also look at the shape of your leg, ankle, and foot while you are standing, and check the range of motion of your toe and joints by asking you to move your toes in different directions A closer examination with weight-bearing X-rays helps your doctor examine the actual bone structure at the joint and see how severe the problem is. A doctor may ask about the types of shoes you wear, sports or activities (e.g., ballet) you participate in, and whether or not you have had a recent injury. This information will help determine your treatment.<br><br>Non Surgical Treatment<br>Making sure that shoes don't press against the bunion worsening the pain is the first line of treatment. Protecting the bunion with felt or foam pads or devices to separate the first and second toes at night may be recommended as may cutting a hole in a pair of old, comfortable shoes to take the pressure off the bony protrusion. Nonsteroidal anti-inflammatory drugs may be recommended to help relieve toe pain. In rare cases, physicians may administer injections of corticosteroids to treat the inflamed bursa (fluid-filled sac located in a joint) sometimes seen with bunions. Custom orthotic devices are another option that may be beneficial in some cases.<br><br><br>Surgical Treatment<br>There are a range of different surgeries that can be performed with the goal of realigning the joint and relieving pain ranging from shaving off part of the bone to cutting and realigning the bone with pins and screws. Depending on the surgery full recovery can take months and require you to stay off the foot. One new type of surgery, called a tightrope, involves attaching a wire to the bone to try and pull it back into alignment, but be wary of this procedure because there have not been any long-term outcome studies yet.<br><br>Prevention<br>Shoes that possess tapering toe boxes should be avoided if you have a bunion, as narrow toe boxes will hasten the progression of your bunion deformity. In some cases, conservative measures, including switching to appropriate footwear, may not have the desired effect, and your podiatrist may recommend for you a surgical procedure known as a bunionectomy. |
Última revisión de 11:04 11 jun 2017
Overview
A bunion is a bone deformity caused by an enlargement of the joint at the base and side of the big toe ( metatarsophalangeal joint ). Bunions form when the toe moves out of place. The enlargement and its protuberance cause friction and pressure as they rub against footwear. The growing enlargement or protuberance then causes more irritation or inflammation. In some cases, the big toe moves toward the second toe and rotates or twists, which is known as Hallux Abducto Valgus. Bunions can also lead to other toe deformities, such as hammertoe.
Causes
There is no single cause of hallux valgus. It most commonly runs in families but may skip generations. High heel, pointed toe shoes are not the primary cause of the hallux valgus but they do cause it to be painful. Pressure from shoes may cause bunions, corns and calluses to develop where there is hallux valgus deformity.
SymptomsBunions typically start out as a mild bump or outward bending of the big toe. Bunions at this stage are usually only a concern of appearance at this stage, and at this point they often don't hurt much. Over time, the ligaments that connect the bones of the toe stretch out, and the tendons attaching to the big toe gradually pull it farther and farther towards the second toe. Sometimes patients will find their first and second toes begin to press together too much, and they'll often get a painful corn between those toes. As the bunion progresses, the big toe may begin to ride on top of the second toe, or vice versa, creating a second deformity. Others will develop bump pain at the site of the bony enlargement on the side of the foot. A painful bursa may develop at that site. This is particularly true in tight shoes. Many patients also develop a painful callus beneath the foot. Capsulitis and other types of metatarsalgia may develop in the joints beneath these calluses, particularly in the second and third metatarsophalangeal joints (the joints in the ball of the foot). Over time, with the toe held in a crooked position for enough time, arthritis develops in the big toe joint. This will usually result in decreased range of motion of that joint (a condition known as "Hallux Limitis"), which as a result, often causes the patient to changes in the way a patient walks. Often the patient walks in an "out-toed", or duck-like, fashion, which very frequently causes secondary pain in the legs, knee, hip, and low back.
Diagnosis
Looking at the problem area on the foot is the best way to discover a bunion. If it has the shape characteristic of a bunion, this is the first hint of a problem. The doctor may also look at the shape of your leg, ankle, and foot while you are standing, and check the range of motion of your toe and joints by asking you to move your toes in different directions A closer examination with weight-bearing X-rays helps your doctor examine the actual bone structure at the joint and see how severe the problem is. A doctor may ask about the types of shoes you wear, sports or activities (e.g., ballet) you participate in, and whether or not you have had a recent injury. This information will help determine your treatment.
Non Surgical Treatment
Making sure that shoes don't press against the bunion worsening the pain is the first line of treatment. Protecting the bunion with felt or foam pads or devices to separate the first and second toes at night may be recommended as may cutting a hole in a pair of old, comfortable shoes to take the pressure off the bony protrusion. Nonsteroidal anti-inflammatory drugs may be recommended to help relieve toe pain. In rare cases, physicians may administer injections of corticosteroids to treat the inflamed bursa (fluid-filled sac located in a joint) sometimes seen with bunions. Custom orthotic devices are another option that may be beneficial in some cases.
Surgical Treatment
There are a range of different surgeries that can be performed with the goal of realigning the joint and relieving pain ranging from shaving off part of the bone to cutting and realigning the bone with pins and screws. Depending on the surgery full recovery can take months and require you to stay off the foot. One new type of surgery, called a tightrope, involves attaching a wire to the bone to try and pull it back into alignment, but be wary of this procedure because there have not been any long-term outcome studies yet.
Prevention
Shoes that possess tapering toe boxes should be avoided if you have a bunion, as narrow toe boxes will hasten the progression of your bunion deformity. In some cases, conservative measures, including switching to appropriate footwear, may not have the desired effect, and your podiatrist may recommend for you a surgical procedure known as a bunionectomy.
