The accessory navicular is an additional piece of cartilage or bone located in the medial foot arch, alongside the navicular bone. It is present in approximately 10 percent of the population and is considered to be a congenital anomaly. Its origin remains somewhat mysterious, with a suspected genetic link. Accessory naviculars often form during adolescence, in three distinct types. Type 1 is a small, round, or oval sesamoid bone within the posterior tibial tendon. It is not connected to the navicular bone and accounts for a third of the cases. Type 2, which is found in more than half the cases, is a heart-shaped or triangular bone connected to the navicular by a layer of cartilage. The largest accessory navicular, type 3, fuses to the navicular bone through a bony bridge and forms a horn-shaped bone. It is found in about 15 percent of the cases and is often referred to as the cornuate navicular. Many individuals with accessory navicular do not experience symptoms. However, types 2 and 3 may lead to accessory navicular syndrome, causing discomfort and inflammation. A podiatrist can perform tests to recognize the presence of an accessory navicular and suggest an appropriate treatment plan. For help, it is suggested that you schedule an appointment with a podiatrist. 

Some foot conditions may require additional professional care. If you have any concerns, contact one of our podiatrists of The Podiatry Center, PC. Our doctors can provide the care you need to keep you pain-free and on your feet.

Rare Foot Conditions

The majority of foot conditions are common and can be treated by a podiatrist.  Standard diagnostic procedures are generally used to identify specific conditions and treatment can be rendered. A podiatrist also treats rare foot conditions which can be difficult to diagnose and may need extra attention and care. 

There are many rare foot conditions that can affect children. Some of these can include:

• Freiberg’s disease
• Kohler’s disease
• Maffucci syndrome

Freiberg’s disease - This can be seen as a deterioration and flattening of a metatarsal bone that exists in the ball of the foot. It typically affects pre-teen and teenage girls, but can affect anyone at any age. Symptoms that can accompany this can be swelling, stiffness, and the patient may limp. 

Kohler’s disease - This often targets the bone in the arch of the foot and affects younger boys. It can lead to an interruption of the blood supply which ultimately can lead to bone deterioration. The patient may limp or experience tenderness, swelling, and redness.

Maffucci syndrome - This affects the long bones in a child’s foot leading to the development of abnormal bone lesions. They are benign growths and typically develop in early childhood and the bones may be susceptible to breaking. 

A podiatrist can properly diagnose and treat all types of rare foot conditions. If your child is affected by any of these symptoms or conditions, please don’t hesitate to call our office so the correct treatment method can begin.

If you have any questions please feel free to contact our office located in Millburn, NJ . We offer the newest diagnostic tools and technology to treat your foot and ankle needs.