Subtalar joint fusion, also known as subtalar arthrodesis, is a surgical procedure that involves eliminating movement in the joint. Here's how it's done:
Surgical Procedure
The process involves several key steps:
- Incision: A surgeon makes a cut, typically 4-5 cm long, on the outer side of the foot to access the subtalar joint.
- Joint Preparation: The joint is opened, and the surfaces of the bones that form the joint are carefully removed. These surfaces might also need reshaping to correct any existing deformities.
- Positioning: The bones are then aligned in the correct position.
- Fixation: The bones are held in the desired position with screws. This secures the joint and allows the bones to fuse together over time.
Here is a simplified breakdown:
| Step | Description |
|---|---|
| Incision | A cut (4-5cm) is made on the outer side of the foot. |
| Joint Access | The subtalar joint is exposed. |
| Surface Removal | Joint surfaces are removed. |
| Reshaping (If needed) | Bones are reshaped for correction. |
| Positioning | Bones are set in the correct position. |
| Fixation | Screws are used to hold the bones together, promoting fusion. |
Why Is This Done?
Subtalar fusion is usually performed to:
- Reduce pain caused by arthritis or other joint problems.
- Correct deformities in the hindfoot.
- Improve stability in the foot and ankle.
- Address conditions such as flatfoot or instability.
Recovery
Following the surgery:
- A cast or boot is typically worn for several weeks to immobilize the foot.
- Physical therapy will help to restore strength and function once the cast is removed.
The goal of this procedure is to create a solid, stable joint, eliminating painful movement, which should improve overall foot function.
