What is Ankle Fusion?

Ankle fusion, also called ankle arthrodesis, is a surgery for advanced ankle arthritis.

Arthritis is the loss of cartilage, the smooth surface that lets a joint glide, and when it is severe the bones rub painfully together.

Fusion removes the damaged surfaces and joins the bones so they grow together into one solid unit. Once the bones heal, the arthritic joint no longer moves, and the pain that came from that motion is relieved.

Losing ankle motion sounds significant, but the foot has other joints that allow walking on level ground. Fusion is a durable, long-proven option, especially for younger, more active patients or those with poor bone quality or significant deformity.

What happens during Ankle Fusion, step by step?

During ankle fusion the surgeon removes the worn cartilage from the ends of the tibia, the shin bone, and the talus, the ankle bone below it, then presses the surfaces together and holds them with screws, and sometimes a plate, while they heal into one bone.

In many cases this can be done through small incisions with the help of an arthroscope, a small camera, which can reduce disruption to the tissues. The aim is a stable, pain-relieved ankle. Dr. Ast will explain why fusion may suit your alignment, bone quality, and activity.

What is recovery like after Ankle Fusion?

Fusion requires the bones to knit together, so you will protect the ankle and limit weight for a period while that healing takes place.

A return to comfortable walking is commonly reported over several months once the fusion is solid, according to general guidance from the American Academy of Orthopaedic Surgeons. These are ranges, not promises, and depend on your bone quality, your health, and your rehabilitation. Dr. Ast will map the stages with you.

Read the full guide to preparing for surgery →

Your own recovery instructions come from the office and are specific to you. This page describes the general course, not a plan to follow.