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发布于:2016-2-28 15:40:39  访问:25 次 回复:0 篇
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Exercises To Help Accessory Navicular Syndrome
Overview
The bones of the foot occasionally develop abnormally in a child and an extra bone called an accessory navicular is present towards the inside of the foot, in front of the ankle. This bone is present in approximately 10% of the general population but not large enough to cause symptoms in the majority of these individuals. The extra bone lump present in childhood can be quite uncomfortable because it rubs on shoes. In addition, the feet associated with the accessory navicular are invariably flat. If the child is active and involved in various athletic activities, this will aggravate the inflammation of the tendon that attaches to the accessory navicular. This tendon is called the posterior tibial tendon and is responsible for maintaining the strength of the arch of the foot. The flat-footedness associated with the accessory navicular usually brings the child for treatment.
Causes
Let us see the reasons why the tendon or the bone would get aggravated. Ankle or foot sprain, irritation of the bone caused by footwear, overusing the foot, quite common in athletes and dancers. People born with this extra bone are also known develop flat feet which also adds to the strain on the posterior tibial tendon and lead to the syndrome.
Symptoms
Perhaps the most common of the extra bones in the foot, the accessory navicular bone is estimated to be present in 7 to 19 percent of the population. Zadek and Gold maintained that the bone persisted as a distinct, separate bone in 2 percent of the population. Also be aware that the accessory bone normally fuses completely or incompletely to the navicular. It is this incomplete fusion which allows for micromotion, which, in turn, may cause degenerative changes that can also contribute to the pain.
Diagnosis
Accessory navicular syndrome is diagnosed by asking about symptoms and examining the foot for skin irritation and swelling. Doctors may assess the area for discomfort by pressing on the bony prominence. Foot structure, muscle strength, joint motion and walking patterns may also be evaluated.
Non Surgical Treatment
Fortunately, surgery is not the only answer when it comes to relieving symptoms of accessory navicular syndrome. The physician may recommend wearing a cast or walking boot for a period of time so the foot can recover from the inflammation. Ice may be used to relieve swelling, too, although it should be wrapped to avoid direct contact with the skin.
Surgical Treatment
In my experience, the Modified Kidner procedure is one of the most reliable operations for reducing arch pain associated with an accessory navicular bone (a.k.a. os tibial externum). You can also use this procedure to treat a prominence at the inner aspect of the arch, which has been caused by an enlarged navicular bone. The most common patients to visit our office with these problems are between the ages of 8 and 15 and Frieberg’s Disease are involved in activities like ice skating, ballet and soccer.
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