An accessory navicular is defined as an extra bone in the foot, and oftentimes it causes moderate to severe discomfort. Depending on the severity, your doctor may recommend a non-surgical treatment to alleviate the pain, or surgery if treatment doesn?t decrease symptoms.
It is commonly believed that the posterior tibial tendon loses its vector of pull to heighten the arch. As the posterior muscle contracts, the tendon is no longer pulling straight up on the navicular but must course around the prominence of bone and first pull medially before pulling upward. In addition, the enlarged bones may irritate and damage the insertional area of the posterior tibial tendon, making it less functional. Therefore, the presence of the accessory navicular bone does contribute to posterior tibial dysfunction.
The main symptom of an aggravated accessory navicular is pain, particularly in the instep. Walking can sometimes be difficult, and tight shoes may worsen the condition.
Typically, accessory navicular syndrome isn?t hard to diagnose. Our podiatrists will examine the lower limb and check the hard prominence, as well as use X-rays to confirm the presence of extra bone tissue. Other diagnostic images may be able to identify inflammation and specific damage to the midfoot. Depending on the severity of your discomfort, conservative measures may be enough to resolve the condition.
Non Surgical Treatment
Treating accessory navicular syndrome is focused on relieving symptoms. Some treatment methods are Icing to reduce swelling. Immobilization with a cast or walking boot to reduce inflammation and promote healing. Medications to reduce pain and inflammation. Physical therapy to strengthen muscles. Orthotics to support the arch. Surgery may be needed to remove the accessory bone and reshape the area if other methods are not successful.
Surgery may be an option if non-surgical treatment does not decrease the symptoms of accessory navicular syndrome. Since this bone is not needed for the foot to function normally, Your surgeon may remove the accessory navicular, reshape the area, and repair the posterior tibial tendon for improved function.