```
When he brought the object up to his face, Liu Yao simply nodded.
For many years, he had been plagued by this very small object.
"Okay, this thing has now been removed, but as you can see, swelling has already started to appear around it."
"Exactly. It's a foreign body, its presence here means the body's constitution will naturally resist it, leading to swelling."
"All we need to do is eliminate this swelling, and the knee should gradually return to normal."
"Right, in theory, that's how it should work."
As they talked, he once again removed the catheter and replaced it with another traction cord, slowly feeding it into the leg.
At this moment, Lin Yi's hands moved with ease inside, and no one knew what kind of treatment he was administering.
What surprised Liu Yao even more was that normally, if surgery were performed in a hospital, it would certainly require constant imaging guidance.
