If there is no autologous bone, you can use allogeneic bone instead, that is, use someone else's bone. But it is definitely best if there is no autologous bone.
The doctor took a small medical stainless steel cylindrical jar with broken bones and artificial bone particles in it. He stirred it around to mix it.
Artificial bone is made one by one by adding collagen and other mechanical properties to the mineral components to make the biomaterial more in line with the human body's mechanical structure.
This kind of manual work suddenly reminds people of decoration workers.
Of course, the manual work of doctors is much more advanced. Without a deep accumulation of medical knowledge, it is impossible to support medical manual work. After all, human life and dead objects are different. They are always in motion, and the risks remain high. Excellent doctors
The brain's knowledge storage capacity and computing power are compared to those of an ordinary decorator, just like the difference between a supercomputer and an ordinary computer.
A titanium cage is installed to fill the bone fragments. The serrations at the upper and lower ends of the titanium cage mixed with autogenous bone are embedded in the upper and lower vertebral bodies to prevent them from moving. To be on the safe side, the doctor will add a nail rod system on this basis.
Reinforcement.
The decorator's work comes again. It's like how to drive a nail into the wall at home. Bones are like cement walls. First, use a hammer to drill holes on both sides of the pedicles of the upper and lower vertebrae, then drill the holes, and then drill them again.
Tighten the self-tapping screws. Pass metal rods through the middle of these screws to reinforce both sides.
These are all hard labor tasks. Fortunately, it is like decorating a home. If you have the tools, it lowers the threshold for women to get started. This is the same as the extra-neural electric skull drill.
Now that the principle of the above-mentioned surgical procedure has been understood, Xie Wanying can begin to use her abilities to assist the surgeon when cutting the length of the titanium cage. The previous surgery showed her extraordinary calculation power, and the surgeon and the others now trust the parameters she provided.
"It needs to be a little shorter." Xie Wanying guessed.
The surgeon moved and cut based on the length she pointed out.
Dr. Liu couldn't figure out how to calculate this difference anyway. He only knew that maybe this difference would work like a miracle just like the one before, and he would no longer torture Classmate Xie stupidly. Besides, there was a surgeon in charge to take care of it.
After cutting, put the orthopedic stuffing into the hollow of the titanium cage. How much to fill is also a skill. Too full will not work, and too empty will not work. Moderate filling is the most important. This ratio can only be estimated by the doctor.
This operation is relatively simple. After the surgeon demonstrated it, I simply asked Xie to do it.
The group of people around continued to watch secretly, thinking that this playboy dared to let go like this. Could it be that he really treated girls more favorably?
With tweezers in hand, Xie Wanying carefully picked up the autogenous bone and the artificial bone piece by piece and put them into the titanium cage. When placing them, she made sure that each part was even and pressed like smooth soil to make sure that the seeds were fully mixed in the soil.
After this step is completed, install the nail rod system.
Make a hole at the position of the vertebral pedicle. Which position is better? Xie will mark it again.
People at the back gathered around and had to wonder who the teacher was.
Seriously, these little bits may only have a difference of one or two millimeters in distance and micro-angle deviation. Normally, other orthopedic surgeons will definitely ignore it when performing operations and give an estimate. It is all with the naked eye, and it is difficult to see and estimate the distance of a tiny millimeter.
, most doctors cannot calculate the slight difference after the decimal point like a computer.
