Specialized Arch Care

Accessory Navicular Resection in Canada

Relief for persistent arch pain. Our foot and ankle specialists perform the Kidner procedure—an approach intended to remove the painful extra bone and restore proper tendon function.

An advanced surgical solution designed to help patients who suffer from chronic arch irritation and medial foot pain.

What is Accessory Navicular Syndrome?

An accessory navicular is an extra bone or piece of cartilage located on the inner side of your foot, just above the arch. This extra bone is present at birth but often doesn't become painful until adolescence or later in life, often triggered by overuse, trauma, or irritation from footwear.

The Kidner procedure is the standard surgical treatment for this condition. It involves excising the accessory bone and reconstructing the attachment of the posterior tibial tendon—the main tendon that supports your arch.

Symptoms & Indications

Visible bump on the inner foot
Redness and swelling in the arch
Pain during activity or exercise
Difficulty wearing certain shoes

When non-surgical treatments like orthotics and physical therapy fail to provide relief, surgical resection offers a long-term approach aimed at addressing the source of irritation.

The Surgical Approach

The Kidner Procedure

A specialized technique designed to restore arch stability and address bone-on-bone irritation

1

Excision

The accessory navicular bone is carefully separated and removed.

2

Tendon Preparation

The posterior tibial tendon is assessed and prepared for reattachment.

3

Reattachment

The tendon is secured back to the main navicular bone using advanced anchors.

4

Arch Support

Proper tensioning helps provide long-term stability to the medial arch.

Your Foot & Ankle Specialist

Fellowship-trained surgeon expert in complex foot reconstruction and the Kidner procedure

Frequently Asked Questions

An accessory navicular is an extra bone or piece of cartilage located on the inner side of the foot, just above the arch. While many people have it without issues, it can cause persistent pain, especially in active individuals or those with flat feet.

The Kidner procedure is the surgical treatment for a painful accessory navicular. It involves removing the extra bone and reattaching the posterior tibial tendon—which normally attaches to the navicular—to the remaining bone to help restore arch support.

Recovery typically involves a period of non-weight bearing in a cast or boot for 4-6 weeks to allow the tendon to heal to the bone. This is followed by a transition into walking in a boot and physical therapy. Most patients return to full activity in 3-4 months.

The Kidner procedure is designed to remove the source of pain and secure the tendon, but it is not primarily a flat foot reconstruction. However, by properly tensioning the posterior tibial tendon, it can help stabilize the arch.

Most patients can return to impact sports like running or soccer around 4-6 months after surgery, depending on the strength of the tendon repair and individual progress in rehabilitation.

No referral is required. You can book a consultation directly with our surgical team to discuss your arch pain and determine if you are a candidate for resection.

Ready to Take the Next Step?

Schedule a consultation to discuss your arch pain and explore whether accessory navicular resection is right for you.