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Os Navicular Syndrome, also known as accessory navicular, is a condition that causes foot pain and discomfort around the inner arch area. A person suffering from the pain will have difficulty taking long walks or performing sports. If left untreated, it can cause long-term chronic pain and affect mobility. This condition is commonly misdiagnosed as posterior tibial tendonitis due to the similarities in the signs and symptoms. Therefore, in this article, we will list the common causes, signs and symptoms, and the treatment options typically available for Os Navicular Syndrome.
An accessory navicular is a small extra bone or cartilage located near the inner side of the foot, just above the arch, where the navicular bone typically sits. This accessory bone is present in some individuals due to a congenital condition where an additional piece of bone forms during development. While many people with an accessory navicular experience no symptoms, in others, it can lead to Os Navicular Syndrome, where pain and inflammation occur in the area. The condition often occurs when physical activity or specific movements trigger discomfort in the foot.
Os Navicular Syndrome occurs when the accessory navicular bone becomes irritated, inflamed, or painful. The condition is typically a result of overuse by the posterior tibial tendon pulling on the accessory navicular bone. The common causes include:
The symptoms of Os Navicular Syndrome can vary depending on the severity of the condition. The common signs and symptoms include:
Os Navicular Syndrome can affect anyone with an accessory navicular, but certain factors increase the risk:
For most individuals, conservative treatments alone can help to manage Os Navicular Syndrome. Treatment options include:
In most cases, surgery is not necessary to treat Os Navicular Syndrome. However, surgery is a valid option to consider if you meet the following:
The most common surgical option is the removal of the accessory navicular bone (known as an accessory navicular excision). Excision of the accessory navicular bone can help alleviate pain and restore normal foot function. The procedure normally involves cutting and reattaching the posterior tibial tendons as well. It is essential to understand that further structural correction may be needed to rectify any underlying foot deformities. However, as with any surgery, there are risks, including infection, nerve damage, or complications related to the healing process.
Your podiatrist should assess your condition and discuss all available options before referring you to an orthopaedic surgeon.
If you experience persistent pain or swelling in the inner arch of your foot, you should see a Podiatrist or medical professional soon. A podiatrist will perform a physical examination and may recommend referral for imaging tests such as X-rays to confirm the presence of an accessory navicular.
Seeking professional care early can help you avoid complications and ensure that the appropriate management plan is in place. Whether you need conservative management or surgical intervention, a podiatrist can guide and support you throughout the process.
Os Navicular Syndrome or accessory navicular can cause pain and difficulty in moving freely, but with the right treatment, it can be managed without surgery.
At Straits Podiatry, we specialise in managing foot conditions like Os Navicular Syndrome and providing personalised care to help you maintain foot health. If you’re experiencing symptoms or want to learn more about treatment options, contact us today for a consultation with one of our expert podiatrists.
Straits Podiatry (Buona Vista),
31 Rochester Drive,
#02-01 (Hotel Block),
Singapore 138637
Straits Podiatry (Katong),
i12 Katong, 112 East Coast Rd,
#03-01/02/03/04/28,
Singapore, 428802.
Straits Podiatry (Orchard),
Healthway Japanese Medical
@The Centrepoint
176 Orchard Rd,
#06-05,
Singapore, 238843