TTC surgery, or Tibio-talo-calcaneal fusion, is a surgical procedure that involves fusing the tibia, talus, and calcaneal bones together. This effectively creates a single, solid bone structure from these three, eliminating motion between them. According to the provided reference, it's typically performed to address severe issues within the ankle and hindfoot.
Why is TTC Fusion Performed?
TTC fusion is usually considered when other treatments have failed and significant problems persist. Common reasons for undergoing this surgery include:
- Arthritis: Severe arthritis in the ankle and hindfoot can cause debilitating pain and limited mobility.
- Deformity: Significant deformities of the foot and ankle may require fusion to realign the bones and improve function.
- Failed Prior Operations: If previous surgeries have not been successful in resolving ankle or hindfoot problems, a TTC fusion might be necessary as a salvage procedure.
Understanding the Procedure
Essentially, the goal of a TTC fusion is to eliminate movement at the ankle and subtalar joints. While this reduces pain, it also limits the range of motion.
Here's a breakdown of what the surgery entails:
- Preparation: The surgeon prepares the bones (tibia, talus, and calcaneus) by removing any remaining cartilage and roughening the surfaces to promote fusion.
- Positioning: The bones are then carefully positioned to achieve the desired alignment.
- Fixation: Internal fixation, such as plates, screws, or rods, is used to hold the bones together while they heal and fuse.
Outcomes and Considerations
While TTC fusion can significantly reduce pain and improve stability, it's important to understand the potential impact on mobility. After a successful fusion, the ankle joint will no longer move. The patient would need to adapt their gait to compensate for the lack of ankle movement.
