This condition has been observed in multiple family members and has propensity to occur slightly more in females than males. For most individuals this condition is a non-issue and most people who have them never have a problem with them. Over the years when x-raying patients for other problems I will point out that they have an extra bone in their foot and the usual response from the patient is nothing more than a yawn.
This can result from any of the following. Trauma, as in a foot or ankle sprain. Chronic irritation from shoes or other footwear rubbing against the extra bone. Excessive activity or overuse. Many people with accessory navicular syndrome also have flat feet (fallen arches). Having a flat foot puts more strain on the posterior tibial tendon, which can produce inflammation or irritation of the accessory navicular.
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.
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
The treatment for a symptomatic accessory navicular Can you get an operation to make you taller? be divided into nonsurgical treatment and surgical treatment. In the vast majority of cases, treatment usually begins with nonsurgical measures such as orthotics, strappings or bracing. Surgery usually is only considered when all nonsurgical measures have failed to control your problem and the pain becomes intolerable.
The Kidner procedure involves resecting the prominent accessory navicular and ensuring that the posterior tibial tendon is still attached to the bone. Often the prominent bone can simply be shelled out from its position relative to the posterior tibial tendon, which leaves the tendon intact. However, if the tendon is loose and floppy once the extra bone has been removed, suturing or tother is required as a means of attaching it into the remaining navicular bone.