If there is no autologous bone, allogeneic bone can be used instead, that is, someone else's bone can be used. It’s just that it’s definitely best not to have autogenous bone.
The doctor took a small medical stainless steel cylindrical jar with broken bones and artificial bone particles in it. He stirred it around and mixed 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 me of a decorator.
Of course, a doctor's manual work is much more advanced. Without a deep accumulation of medical knowledge, it is impossible to support medical manual work. After all, human life and living things are different. They are always in motion, and the risks remain high. The knowledge storage capacity and computing power of an excellent doctor's brain is comparable to that of an ordinary decorator, just like the difference between a supercomputer and an ordinary computer.
Install the titanium cage and fill it with bone blocks. 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 for reinforcement on this basis.
The work of the decorator is back again. It's like driving a nail into the wall at home. Bones are like cement walls. Use a hammer to drill holes on both sides of the pedicles of the upper and lower vertebrae, then drill the holes, and then tighten the self-tapping screws after drilling. Reinforce both sides by passing metal rods through the middle of these screws.
These are all serious physical tasks. Fortunately, just like home decoration, if you have the tools, it lowers the threshold for women to get started. This is the same as the extraneural electric skull drill.
Once the principle of the above surgical process is understood, Xie Wanying can begin to use her ability to assist the surgeon when cutting the length of the titanium cage. The previous knife showed her extraordinary calculation power, and the chief surgeon and the others now believed in 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. Gu Xiaoliu couldn't figure out how to calculate this difference anyway. He only knew that maybe this difference would work like the miracle just now, and he would no longer torture Student Xie stupidly. Besides, there is a chief surgeon taking care of everything.
After cutting, fill the orthopedics into the hollow of the titanium cage. How much filling is also a skill. If it is too full, it will not work, and if it is too empty, it will not work. Moderate padding is most important. This ratio can only be estimated by doctors again.
This operation is relatively simple. After the surgeon demonstrated it, he 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 autologous 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.
The people behind 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's all with the naked eye, and it's hard to see and estimate the distance of a few millimeters. Most doctors can't calculate the slight difference after the decimal point like a computer.
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Set a small goal first, such as remembering in 1 second: Shukeju
